User Tools

Site Tools


tech:network:cisco:ipv6:ipv6-again:ipv6-again

RE: IPv6 Introduction

  • R1
enable
configure terminal
!
hostname R1
no ip domain-lookup
line console 0
exec-timeout 0 0
logging synchronous
exit
!
end
write
  • R2
enable
configure terminal
!
hostname R2
no ip domain-lookup
line console 0
exec-timeout 0 0
logging synchronous
exit
!
end
write
  • R3
enable
configure terminal
!
hostname R3
no ip domain-lookup
line console 0
exec-timeout 0 0
logging synchronous
exit
!
end
write
  • R4
enable
configure terminal
!
hostname R4
no ip domain-lookup
line console 0
exec-timeout 0 0
logging synchronous
exit
!
end
write
R1#sh run all | i ipv6 unicast
R1#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
R1(config)#ipv
R1(config)#ipv6 unicast-rou
R1(config)#ipv6 unicast-routing 
R1(config)#do sh run all | i ipv6 unicast-routing
ipv6 unicast-routing
R1(config)#
R1#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
R1(config)#ipv
R1(config)#ipv6 unicast-rou
R1(config)#ipv6 unicast-routing 
R1(config)#do sh run all | i ipv6 unicast-routing
ipv6 unicast-routing
R1(config)#int gig0/0
R1(config-if)#ipv6
R1(config-if)#ipv6 add
R1(config-if)#ipv6 address 2001:1:1:2::1/64
R1(config-if)#ipv
R1(config-if)#do sh ipv6 in
R1(config-if)#^Z           
R1#sh 
*Feb 28 21:47:47.952: %SYS-5-CONFIG_I: Configured from console by console
R1#sh ipv
R1#sh ipv6 int
R1#sh ipv6 interface bri
R1#sh ipv6 interface brief 
GigabitEthernet0/0     [administratively down/down]
    FE80::E30:3FFF:FEDD:9E00
    2001:1:1:2::1
GigabitEthernet0/1     [administratively down/down]
    unassigned
GigabitEthernet0/2     [administratively down/down]
    unassigned
GigabitEthernet0/3     [administratively down/down]
    unassigned
R1#conf t                  
Enter configuration commands, one per line.  End with CNTL/Z.
R1(config)#int gig0/1
R1(config-if)#ipv
R1(config-if)#ipv6 add
R1(config-if)#ipv6 address 2001:1:1:2::/64 eu
R1(config-if)#ipv6 address 2001:1:1:2::/64 eui-64 
%GigabitEthernet0/1: Informational: 2001:1:1:2::/64 is overlapping on shutdown GigabitEthernet0/0
R1(config-if)#do sh run   
Building configuration...

Current configuration : 3228 bytes
!
! Last configuration change at 21:47:47 UTC Thu Feb 28 2019
!
version 15.5
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R1
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
ethernet lmi ce
!
!
!
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
!
!
!
!
!
no ip icmp rate-limit unreachable
!
!
!
!
!
!
no ip domain lookup
ip cef
ipv6 unicast-routing
ipv6 cef
!
multilink bundle-name authenticated
!
!
!         
!
!
redundancy
!
no cdp log mismatch duplex
!
ip tcp synwait-time 5
! 
!
!
!
!
!
!
!
!
!
!
!
!
interface GigabitEthernet0/0
 no ip address
 shutdown 
 duplex auto
 speed auto
 media-type rj45
 ipv6 address 2001:1:1:2::1/64
!
interface GigabitEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
 media-type rj45
 ipv6 address 2001:1:1:2::/64 eui-64
!
interface GigabitEthernet0/2
 no ip address
 shutdown
 duplex auto
 speed auto
 media-type rj45
!
interface GigabitEthernet0/3
 no ip address
          
R1(config-if)#no ipv6 address 2001:1:1:2::/64 eui-64 
R1(config-if)#ipv6 address 2001:1:1:4::/64 eui-64    
R1(config-if)#^Z                                     
R1#sh 
*Feb 28 21:51:17.980: %SYS-5-CONFIG_I: Configured from console by console
R1#sh ipv
R1#sh ipv6 add
R1#sh ipv6 inter
R1#sh ipv6 interface add
R1#sh ipv6 interface    
R1#sh ipv6 interface bri
R1#sh ipv6 interface brief 
GigabitEthernet0/0     [administratively down/down]
    FE80::E30:3FFF:FEDD:9E00
    2001:1:1:2::1
GigabitEthernet0/1     [administratively down/down]
    FE80::E30:3FFF:FEDD:9E01
    2001:1:1:4:E30:3FFF:FEDD:9E01
GigabitEthernet0/2     [administratively down/down]
    unassigned
GigabitEthernet0/3     [administratively down/down]
    unassigned
R1#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
R1(config)#int gig0/2
R1(config-if)#ipv
R1(config-if)#ipv6 addre
R1(config-if)#ipv6 address 2001:1:1:1::/64 any
R1(config-if)#ipv6 address 2001:1:1:1::/64 anycast 
R1(config-if)#^Z
R1#sh 
*Feb 28 21:52:59.109: %SYS-5-CONFIG_I: Configured from console by console
R1#sh ipv  
R1#sh ipv6 inter
R1#sh ipv6 interface bri
GigabitEthernet0/0     [administratively down/down]
    FE80::E30:3FFF:FEDD:9E00
    2001:1:1:2::1
GigabitEthernet0/1     [administratively down/down]
    FE80::E30:3FFF:FEDD:9E01
    2001:1:1:4:E30:3FFF:FEDD:9E01
GigabitEthernet0/2     [administratively down/down]
    FE80::E30:3FFF:FEDD:9E02
    2001:1:1:1::
GigabitEthernet0/3     [administratively down/down]
    unassigned
R1#sh ipv6 int
R1#sh ipv6 interface gig0/2
GigabitEthernet0/2 is administratively down, line protocol is down
  IPv6 is tentative, link-local address is FE80::E30:3FFF:FEDD:9E02 [TEN]
  No Virtual link-local address(es):
  Global unicast address(es):
    2001:1:1:1::, subnet is 2001:1:1:1::/64 [ANY/TEN]
  Joined group address(es):
    FF02::1
    FF02::2
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
R1#sh ipv6 interface gig0/1
GigabitEthernet0/1 is administratively down, line protocol is down
  IPv6 is tentative, link-local address is FE80::E30:3FFF:FEDD:9E01 [TEN]
  No Virtual link-local address(es):
  Global unicast address(es):
    2001:1:1:4:E30:3FFF:FEDD:9E01, subnet is 2001:1:1:4::/64 [EUI/TEN]
  Joined group address(es):
    FF02::1
    FF02::2
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
R1#sh ipv6 interface gig0/0
GigabitEthernet0/0 is administratively down, line protocol is down
  IPv6 is tentative, link-local address is FE80::E30:3FFF:FEDD:9E00 [TEN]
  No Virtual link-local address(es):
  Global unicast address(es):
    2001:1:1:2::1, subnet is 2001:1:1:2::/64 [TEN]
  Joined group address(es):
    FF02::1
    FF02::2
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.

Catalyst Switch

Virtual Catalyst Switch IOSvL2

enable
configure terminal
!
hostname SW1
no service config
!no setup express
no ip domain-lookup
line console 0
exec-timeout 0 0
logging synchronous
exit
!
end
write
enable
configure terminal
!
hostname SW2
no service config
!no setup express
no ip domain-lookup
line console 0
exec-timeout 0 0
logging synchronous
exit
!
end
write
SW1>en
SW1#sh run | i sdm
SW1#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
SW1(config)#int vlan1
SW1(config-if)#
*Mar  2 06:04:26.889: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to downe
SW1(config-if)#exit
SW1(config)#ipv
SW1(config)#ipv6 add
SW1(config)#ipv6 uni  
SW1(config)#do sh sdm prefer     
                    ^
% Invalid input detected at '^' marker.

SW1(config)#ipv     
SW1(config)#ipv6 unica
SW1(config)#ipv6 unicast-routing 
SW1(config)#int vlan 1
SW1(config-if)#ipv6 add
SW1(config-if)#ipv6 address 2001:123:123:abcd::1/64
SW1(config-if)#^Z
SW1#
*Mar  2 06:07:56.810: %SYS-5-CONFIG_I: Configured from console by console
SW1#sh ipv6 inter
SW1#sh ipv6 interface 
Vlan1 is administratively down, line protocol is down
  IPv6 is tentative, link-local address is FE80::EC6:F8FF:FE94:8001 [TEN]
  No Virtual link-local address(es):
  Global unicast address(es):
    2001:123:123:ABCD::1, subnet is 2001:123:123:ABCD::/64 [TEN]
  Joined group address(es):
    FF02::1
    FF02::2
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
SW1#ping 2001:123:123:ABCD::2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:123:123:ABCD::2, timeout is 2 seconds:

% No valid route for destination
Success rate is 0 percent (0/1)
SW1#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
SW1(config)#int vlan1
SW1(config-if)#no shut
SW1(config-if)#^Z
SW1#
*Mar  2 06:13:37.247: %SYS-5-CONFIG_I: Configured from console by console
SW1#
*Mar  2 06:13:38.867: %LINK-3-UPDOWN: Interface Vlan1, changed state to up
*Mar  2 06:13:39.867: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up
SW1#ping 2001:123:123:ABCD::2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:123:123:ABCD::2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 3/9/30 ms
SW1#ping FE80::EC6:F8FF:FE83:8001%Vlan1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to FE80::EC6:F8FF:FE83:8001, timeout is 2 seconds:
Packet sent with a source address of FE80::EC6:F8FF:FE94:8001%Vlan1
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/5/7 ms
SW1#sh ipv
SW1#sh ipv6 inter
SW1#sh ipv6 interface 
Vlan1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::EC6:F8FF:FE94:8001 
  No Virtual link-local address(es):
  Global unicast address(es):
    2001:123:123:ABCD::1, subnet is 2001:123:123:ABCD::/64 
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FF00:1
    FF02::1:FF94:8001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
SW1#
SW2>en
SW2#sh run | i sdm
SW2#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
SW2(config)#ipv6 unica
SW2(config)#ipv6 unicast-routing 
SW2(config)#sd
SW2(config)#sd
SW2(config)#sd
SW2(config)#sd
SW2(config)#sd
SW2(config)#sd?
% Unrecognized command
SW2(config)#int vlan1
SW2(config-if)#ipv5
*Mar  2 06:07:27.515: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down
SW2(config-if)#ipv6 unica
SW2(config-if)#ipv       
SW2(config-if)#ipv6 add
SW2(config-if)#ipv6 address 2001:123:123:abcd::2/64
SW2(config-if)#^Z
SW2#
*Mar  2 06:07:55.429: %SYS-5-CONFIG_I: Configured from console by console
SW2#sho
SW2#show ip
SW2#show ipv
SW2#show ipv6 inter
SW2#show ipv6 interface 
Vlan1 is administratively down, line protocol is down
  IPv6 is tentative, link-local address is FE80::EC6:F8FF:FE83:8001 [TEN]
  No Virtual link-local address(es):
  Global unicast address(es):
    2001:123:123:ABCD::2, subnet is 2001:123:123:ABCD::/64 [TEN]
  Joined group address(es):
    FF02::1
    FF02::2
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
SW2#conf t  
Enter configuration commands, one per line.  End with CNTL/Z.
SW2(config)#int vlan 1
SW2(config-if)#no shut
SW2(config-if)#^Z
SW2#
*Mar  2 06:13:49.455: %SYS-5-CONFIG_I: Configured from console by console
SW2#
*Mar  2 06:13:51.168: %LINK-3-UPDOWN: Interface Vlan1, changed state to up
*Mar  2 06:13:52.169: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to up

IOSvL2 environment cannnot show sdm template configuration.

pretty much good.

Physical Switch Catalyst 3750 series w/ IOS 15 series

SW2#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
SW2(config)#sdm pre
SW2(config)#sdm prefer du
SW2(config)#sdm prefer dual-ipv4-and-ipv6
% Incomplete command.

SW2(config)#sdm prefer dual-ipv4-and-ipv6 rout
SW2(config)#sdm prefer dual-ipv4-and-ipv6 routing
Changes to the running SDM preferences have been stored, but cannot take effec
t
until the next reload.
Use 'show sdm prefer' to see what SDM preference is currently active.
SW2(config)#
SW2(config)#wr
             ^
% Invalid input detected at '^' marker.

SW2(config)#^Z
SW2#
*Mar  1 00:14:28.447: %SYS-5-CONFIG_I: Configured from console by console
SW2#relaod
Translating "relaod"
% Unknown command or computer name, or unable to find computer address
SW2#relo
SW2#reload

System configuration has been modified. Save? [yes/no]:
Proceed with reload? [confirm]^C
SW2#wri
SW2#write
Building configuration...
[OK]
SW2#reload
Proceed with reload? [confirm]

*Mar  1 00:15:36.202: %SYS-5-RELOAD: Reload requested by console. Reload Reason: Reload command.
SW2#configure terminal
Enter configuration commands, one per line.  End with CNTL/Z.
SW2(config)#gig
SW2(config)#it gi
SW2(config)#do sh run | i sdm
SW2(config)#do sh run all | i sdm
SW2(config)#ipv
SW2(config)#^Z
SW2#show
*Mar  1 00:29:07.296: %SYS-5-CONFIG_I: Configured from console by console
SW2#show sdm pre
SW2#show sdm prefer
 The current template is "desktop IPv4 and IPv6 routing" template.
 The selected template optimizes the resources in
 the switch to support this level of features for
 8 routed interfaces and 1024 VLANs.

  number of unicast mac addresses:                  1.5K
  number of IPv4 IGMP groups + multicast routes:    1K
  number of IPv4 unicast routes:                    2.75K
    number of directly-connected IPv4 hosts:        1.5K
    number of indirect IPv4 routes:                 1.25K
  number of IPv6 multicast groups:                  1.125k
  number of directly-connected IPv6 addresses:      1.5K
  number of indirect IPv6 unicast routes:           1.25K
  number of IPv4 policy based routing aces:         0.25K
  number of IPv4/MAC qos aces:                      0.5K
  number of IPv4/MAC security aces:                 0.5K
  number of IPv6 policy based routing aces:         0.25K
  number of IPv6 qos aces:                          0.625k
  number of IPv6 security aces:                     0.5K

SW2#
SW1#conf t                                                                    
Enter configuration commands, one per line.  End with CNTL/Z.                 
SW1(config)#ipv                                                               
SW1(config)#ipv6 uni                                                          
SW1(config)#ipv6 unicast-routing                                              
SW1(config)#int vlan1                                                         
SW1(config-if)#ipv6 add                                                       
SW1(config-if)#ipv6 address 2001:1234:abcd:321::/64 eu                        
SW1(config-if)#ipv6 address 2001:1234:abcd:321::1/64                          
SW1(config-if)#^Z                                                             
SW1#                                                                          
*Mar  1 00:33:14.945: %SYS-5-CONFIG_I: Configured from console by console     
SW1#sh ipv                                                                    
SW1#sh ipv6 itner                                                             
SW1#sh ipv6 inter                                                             
SW1#sh ipv6 interface                                                         
Vlan1 is up, line protocol is up                                              
  IPv6 is enabled, link-local address is FE80::123:4567:89AB:1            
  No Virtual link-local address(es):                                          
  Global unicast address(es):                                                 
    2001:1234:ABCD:321::1, subnet is 2001:1234:ABCD:321::/64                  
  Joined group address(es):                                                   
    FF02::1                                                                   
    FF02::2                                                                   
    FF02::1:FF00:1                                                            
    FF02::1:FF15:1                                                         
  MTU is 1500 bytes                                                           
  ICMP error messages limited to one every 100 milliseconds                   
  ICMP redirects are enabled                                                  
  ICMP unreachables are sent                                                  
  Output features: Check hwidb                                                
  ND DAD is enabled, number of DAD attempts: 1                                
  ND reachable time is 30000 milliseconds (using 30000)                       
  ND advertised reachable time is 0 (unspecified)                             
  ND advertised retransmit interval is 0 (unspecified)                        
  ND router advertisements are sent every 200 seconds                         
  ND router advertisements live for 1800 seconds                              
  ND advertised default router preference is Medium                           
  Hosts use stateless autoconfig for addresses.                               
SW1#ping 2001:1234:ABCD:321:123:4567:89AB:2                               
Type escape sequence to abort.                                                
Sending 5, 100-byte ICMP Echos to 2001:1234:ABCD:321:123:4567:89AB:1, time
out is 2 seconds:                                                             
!!!!!                                                                         
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/13/33 ms        
SW1#ping FE80::123:4567:89AB:2%FastEthernet0/0/0                          
% Unrecognized host or address, or protocol not running.                      
                                                                              
SW1#ping FE80::123:4567:89AB:2                                            
Output Interface: Vlan1                                                       
Type escape sequence to abort.                                                
Sending 5, 100-byte ICMP Echos to FE80::123:4567:89AB:2, timeout is 2 seco
nds:                                                                          
Packet sent with a source address of FE80::123:4567:89AB:1%Vlan1          
!!!!!                                                                         
Success rate is 100 percent (5/5), round-trip min/avg/max = 0/0/0 ms          
SW2#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
SW2(config)#ipv
SW2(config)#ipv6 uni
SW2(config)#ipv6 unicast-routing
SW2(config)#int vlan1
SW2(config-if)#ipv6 add
SW2(config-if)#ipv6 address 2001:1234:abcd:321::/64 eu
SW2(config-if)#ipv6 address 2001:1234:abcd:321::/64 eui-64
SW2(config-if)#^Z
SW2#
*Mar  1 00:33:16.480: %SYS-5-CONFIG_I: Configured from console by console
SW2#show ipv6 interfa
SW2#show ipv6 interface
Vlan1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::123:4567:89AB:2
  No Virtual link-local address(es):
  Global unicast address(es):
    2001:1234:ABCD:321:123:4567:89AB:2, subnet is 2001:1234:ABCD:321::/64
[EUI]
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FF45:2
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  Output features: Check hwidb
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
SW2#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
SW2(config)#int vlan1
SW2(config-if)#no ipv
SW2(config-if)#no ipv6 add
SW2(config-if)#no ipv6 address
SW2(config-if)#do sh ipv6 int
SW2(config-if)#ipv6 address 2001:1234:abcd:321::/64 eui-64
SW2(config-if)#no ipv6 address
SW2(config-if)#no ipv6 address
SW2(config-if)#ipv6 address 2001:1234:abcd:321::/64 eui-64
SW2(config-if)#do sh ipv6 int
Vlan1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::123:4567:89AB:2
  No Virtual link-local address(es):
  Global unicast address(es):
    2001:1234:ABCD:321:123:4567:89AB:2, subnet is 2001:1234:ABCD:321::/64
[EUI]
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FF45:2
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  Output features: Check hwidb
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
SW2(config-if)#no ipv6 address
SW2(config-if)#ipv
SW2(config-if)#ipv6 add
SW2(config-if)#ipv6 address au
SW2(config-if)#ipv6 address autoconfig defa
SW2(config-if)#ipv6 address autoconfig default
SW2(config-if)#^Z
SW2#sh
*Mar  1 00:37:12.644: %SYS-5-CONFIG_I: Configured from console by console
SW2#sh ipv6 route
IPv6 Routing Table - default - 4 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
       B - BGP, R - RIP, D - EIGRP, EX - EIGRP external
       ND - ND Default, NDp - ND Prefix, DCE - Destination, NDr - Redirect
       O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1, OE2 - OSPF ext 2
       ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
ND  ::/0 [2/0]
     via FE80::E67E:66FF:FE30:2A85, Vlan1
NDp 240D:1A:640:9B00::/64 [2/0]
     via Vlan1, directly connected
L   240D:1A:640:9B00:123:4567:89AB:2/128 [0/0]
     via Vlan1, receive
L   FF00::/8 [0/0]
     via Null0, receive
SW2#ping 2600::
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2600::, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 235/236/243 ms

revert sdm template configuration to default

SW2>en
SW2#sd
SW2#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
SW2(config)#sdm
SW2(config)#ipv
SW2(config)#sdm
SW2(config)#sdm tem
SW2(config)#sdm tem
SW2(config)#sdm tem
SW2(config)#sdm pre
SW2(config)#sdm prefer ?
  access              Access bias
  default             Default bias
  dual-ipv4-and-ipv6  Support both IPv4 and IPv6
  routing             Unicast bias
  vlan                VLAN bias

SW2(config)#no sdm prefer du
SW2(config)#sdm prefer dua
SW2(config)#sdm prefer dual-ipv4-and-ipv6 rou
SW2(config)#no sdm prefer dual-ipv4-and-ipv6 routing
Changes to the running SDM preferences have been stored, but cannot take effec
t
until the next reload.
Use 'show sdm prefer' to see what SDM preference is currently active.
SW2(config)#^Z
SW2#
*Mar  1 00:04:04.066: %SYS-5-CONFIG_I: Configured from console by console
SW2#sh sdm pre
SW2#sh sdm prefer
 The current template is "desktop IPv4 and IPv6 routing" template.
 The selected template optimizes the resources in
 the switch to support this level of features for
 8 routed interfaces and 1024 VLANs.

  number of unicast mac addresses:                  1.5K
  number of IPv4 IGMP groups + multicast routes:    1K
  number of IPv4 unicast routes:                    2.75K
    number of directly-connected IPv4 hosts:        1.5K
    number of indirect IPv4 routes:                 1.25K
  number of IPv6 multicast groups:                  1.125k
  number of directly-connected IPv6 addresses:      1.5K
  number of indirect IPv6 unicast routes:           1.25K
  number of IPv4 policy based routing aces:         0.25K
  number of IPv4/MAC qos aces:                      0.5K
  number of IPv4/MAC security aces:                 0.5K
  number of IPv6 policy based routing aces:         0.25K
  number of IPv6 qos aces:                          0.625k
  number of IPv6 security aces:                     0.5K

 On next reload, template will be "desktop default" template.

SW2#reload

System configuration has been modified. Save? [yes/no]: yes
Building configuration...
[OK]
Proceed with reload? [confirm]

*Mar  1 00:04:40.582: %SYS-5-RELOAD: Reload requested by console. Reload Reason: Reload command.

pretty much good.

Router Advertisement (RA)

R1#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
R1(config)#ipv
R1(config)#ipv6 uni
R1(config)#ipv6 unicast-routing 
R1(config)#inter
R1(config)#interface Gig
R1(config)#interface GigabitEthernet 0/0
R1(config-if)#ipv
R1(config-if)#ipv6 add
R1(config-if)#ipv6 address 2001:0:1:2::1/64
R1(config-if)#ipv6 address 2001:1:1:2::1/64
R1(config-if)#ipv6 address 2001:2:1:2::1/64
R1(config-if)#ipv6 address 2001:3:1:2::1/64
R1(config-if)#do sh ipv6 int
GigabitEthernet0/0 is administratively down, line protocol is down
  IPv6 is tentative, link-local address is FE80::E30:3FFF:FEDD:9E00 [TEN]
  No Virtual link-local address(es):
  Global unicast address(es):
    2001:0:1:2::1, subnet is 2001:0:1:2::/64 [TEN]
    2001:1:1:2::1, subnet is 2001:1:1:2::/64 [TEN]
    2001:2:1:2::1, subnet is 2001:2:1:2::/64 [TEN]
    2001:3:1:2::1, subnet is 2001:3:1:2::/64 [TEN]
  Joined group address(es):
    FF02::1
    FF02::2
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
R1(config-if)#no shut
R1(config-if)#do sh ipv6 int
GigabitEthernet0/0 is up, line protocol is up
  IPv6 is tentative, link-local address is FE80::E30:3FFF:FEDD:9E00 [TEN]
  No Virtual link-local address(es):
  Global unicast address(es):
    2001:0:1:2::1, subnet is 2001:0:1:2::/64 [TEN]
    2001:1:1:2::1, subnet is 2001:1:1:2::/64 [TEN]
    2001:2:1:2::1, subnet is 2001:2:1:2::/64 [TEN]
    2001:3:1:2::1, subnet is 2001:3:1:2::/64 [TEN]
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:9E00
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
 --More-- 
*Mar  3 01:22:51.076: %LINK-3-UPDOWN: Interface GigabitEthernet0/0, changed state to up
 --More-- 
*Mar  3 01:22:52.076: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up
          
R1(config-if)#do sh ipv6 int
GigabitEthernet0/0 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:9E00 
  No Virtual link-local address(es):
  Global unicast address(es):
    2001:0:1:2::1, subnet is 2001:0:1:2::/64 
    2001:1:1:2::1, subnet is 2001:1:1:2::/64 
    2001:2:1:2::1, subnet is 2001:2:1:2::/64 
    2001:3:1:2::1, subnet is 2001:3:1:2::/64 
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FF00:1
    FF02::1:FFDD:9E00
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
R1(config-if)#ipv           
R1(config-if)#ipv6 nd
R1(config-if)#ipv6 nd ra
R1(config-if)#ipv6 nd ra +?
% Unrecognized command
R1(config-if)#ipv6 nd ra ?
  dns        DNS
  hop-limit  IPv6 RA hop-limit value
  interval   Set IPv6 Router Advertisement Interval
  lifetime   Set IPv6 Router Advertisement Lifetime
  mtu        IPv6 RA MTU Option
  solicited  Set solicited Router Advertisement response method
  suppress   Suppress IPv6 Router Advertisements

R1(config-if)#ipv6 nd ra inter
R1(config-if)#ipv6 nd ra interval ?
  <4-1800>  RA Interval (sec)
  msec      Interval in milliseconds

R1(config-if)#ipv6 nd ra interval ms
R1(config-if)#ipv6 nd ra interval 1 ?  
% Unrecognized command
R1(config-if)#ipv6 nd ra interval ? 
  <4-1800>  RA Interval (sec)
  msec      Interval in milliseconds

R1(config-if)#ipv6 nd ra interval 123 ?
  <3-92>  Minimum interval (seconds)
  <cr>

R1(config-if)#ipv6 nd ra interval 10  
R1(config-if)#noipv6 nd ra interval 10
                ^
% Invalid input detected at '^' marker.

R1(config-if)#no ipv6 nd ra interval 10
R1(config-if)#no ipv6 nd ra interval 10]
R1(config-if)#ipv                       
R1(config-if)#ipv6 nd ra
R1(config-if)#ipv6 nd ra inter
R1(config-if)#ipv6 nd ra interval 10
R1(config-if)#ipv6 nd ra interval 4 
R1(config-if)#ipv6 nd ra interval 30
R1(config-if)#int gig0/1
R1(config-if)#ipv
R1(config-if)#ipv6 ad
R1(config-if)#ipv6 address 2001:0:1:4::1/64
R1(config-if)#no shut
R1(config-if)#
*Mar  3 01:38:01.488: %LINK-3-UPDOWN: Interface GigabitEthernet0/1, changed state to up
*Mar  3 01:38:02.488: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to up
R1(config-if)#^Z 
R1#sh ip v
*Mar  3 01:39:54.710: %SYS-5-CONFIG_I: Configured from console by console
R1#sh ip v
R1#sh ipv6
R1#sh ipv6 add
R1#sh ipv6 inter
R1#sh ipv6 interface 
GigabitEthernet0/0 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:9E00 
  No Virtual link-local address(es):
  Global unicast address(es):
    2001:0:1:2::1, subnet is 2001:0:1:2::/64 
    2001:1:1:2::1, subnet is 2001:1:1:2::/64 
    2001:2:1:2::1, subnet is 2001:2:1:2::/64 
    2001:3:1:2::1, subnet is 2001:3:1:2::/64 
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FF00:1
    FF02::1:FFDD:9E00
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 30 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:9E01 
  No Virtual link-local address(es):
  Global unicast address(es):
    2001:0:1:4::1, subnet is 2001:0:1:4::/64 
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FF00:1
    FF02::1:FFDD:9E01
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
          
R1#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
R1(config)#int gig0/0
R1(config-if)#no ipv    
R1(config-if)#no ipv6 nd ra inter
R1(config-if)#no ipv6 nd ra interval 
R1(config-if)#ipv
R1(config-if)#ipv6 nd
R1(config-if)#ipv6 nd ra
R1(config-if)#ipv6 nd ra in
R1(config-if)#ipv6 nd ra interval 10
R1(config-if)#ipv
R1(config-if)#ipv6 nd
R1(config-if)#ipv6 nd ra
R1(config-if)#ipv6 nd ra li
R1(config-if)#ipv6 nd ra lifetime ?
  <0-9000>  RA Lifetime (seconds)

R1(config-if)#ipv6 nd ra lifetime 60
R1(config-if)#ipv
R1(config-if)#ipv6 nd
R1(config-if)#ipv6 nd ra su
R1(config-if)#ipv6 nd ra suppress ?
  all  Suppress all IPv6 Router Advertisements
  <cr>

R1(config-if)#ipv6 nd ra suppress al
R1(config-if)#ipv6 nd ra suppress all 
R1(config-if)#ipv6
R1(config-if)#ipv6 nd
R1(config-if)#ipv6 nd router
R1(config-if)#ipv6 nd router-preference ?
  High    High default router preference
  Low     Low default router preference
  Medium  Medium default router preference

R1(config-if)#ipv6 nd router-preference h
R1(config-if)#ipv6 nd router-preference H    
R1(config-if)#ipv6 nd router-preference High 
R1(config-if)#no ipv                         
R1(config-if)#no ipv6 nd ra
R1(config-if)#no ipv6 nd ra su
R1(config-if)#no ipv6 nd ra suppress 
R1(config-if)#no ipv6 nd ra suppress a
R1(config-if)#no ipv6 nd ra suppress all 
R1(config-if)#do sh run int gig0/0
Building configuration...

Current configuration : 297 bytes
!
interface GigabitEthernet0/0
 no ip address
 duplex auto
 speed auto
 media-type rj45
 ipv6 address 2001:0:1:2::1/64
 ipv6 address 2001:1:1:2::1/64
 ipv6 address 2001:2:1:2::1/64
 ipv6 address 2001:3:1:2::1/64
 ipv6 nd router-preference High
 ipv6 nd ra lifetime 60
 ipv6 nd ra interval 10
end

R1(config-if)#ipv                            
R1(config-if)#ipv6 nd
R1(config-if)#ipv6 nd router-dfa
R1(config-if)#ipv6 nd router-d  
R1(config-if)#ipv6 nd router-p
R1(config-if)#ipv6 nd router-preference ?
  High    High default router preference
  Low     Low default router preference
  Medium  Medium default router preference

R1(config-if)#ipv6 nd router-preference L
R1(config-if)#ipv6 nd router-preference Low 
R1(config-if)#ipv
R1(config-if)#ipv6 nd
R1(config-if)#ipv6 nd pre
R1(config-if)#ipv6 nd prefix ?
  X:X:X:X::X/<0-128>  IPv6 prefix x:x::y/<z>
  default             Specify prefix default parameters
  framed-ipv6-prefix  Advertise prefix obtained from RADIUS server

R1(config-if)#ipv6 nd prefix 2001:0:1:2::/64 ?   
  <0-4294967295>  Valid Lifetime (secs)
  at              Expire prefix at a specific time/date
  infinite        Infinite Valid Lifetime
  no-advertise    Do not advertise prefix
  <cr>

R1(config-if)#ipv6 nd prefix 2001:0:1:2::/64 300 60
R1(config-if)#ipv                                  
R1(config-if)#ipv6 nd
R1(config-if)#ipv6 nd ra
R1(config-if)#ipv6 nd ra su
R1(config-if)#ipv6 nd ra suppress a
R1(config-if)#ipv6 nd ra suppress all 
R1(config-if)#no ipv6 nd ra suppress all           
R1(config-if)#ipv6 nd ra suppress all    
R1(config-if)#n oipv6 nd ra suppress all 
                 ^
% Invalid input detected at '^' marker.

R1(config-if)#no ipv6 nd ra suppress all  
R1(config-if)#ipv                        
R1(config-if)#ipv6 nd
R1(config-if)#ipv6 nd ra
R1(config-if)#ipv6 nd ra su
R1(config-if)#ipv6 nd ra suppress a
R1(config-if)#ipv6 nd ra suppress all 
R1(config-if)#no ipv6 nd ra suppress all 
R1(config-if)#ipv6 nd ra suppress all    
R1(config-if)#no ipv6 nd ra suppress all 
R2#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
R2(config)#ipv 
R2(config)#ipv6 uni
R2(config)#ipv6 unicast-routing 
R2(config)#int gig0/1
R2(config-if)#ipv
R2(config-if)#ipv6 add
R2(config-if)#ipv6 address auto
R2(config-if)#ipv6 address autoconfig de
R2(config-if)#ipv6 address autoconfig default 
R2(config-if)#no shut
R2(config-if)#
*Mar  3 01:35:54.283: %LINK-3-UPDOWN: Interface GigabitEthernet0/1, changed state to up
R2(config-if)#
*Mar  3 01:35:55.284: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to up
R2(config-if)#^Z
R2#sh
*Mar  3 01:36:31.280: %SYS-5-CONFIG_I: Configured from console by console
R2#sh ipv
R2#sh ipv6 inter
R2#sh ipv6 interface 
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591982 preferred lifetime 604782
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591982 preferred lifetime 604782
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591982 preferred lifetime 604782
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591982 preferred lifetime 604782
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
R2#sh ipv
R2#sh ipv6 rou
R2#sh ipv6 route
IPv6 Routing Table - default - 10 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
       B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP
       H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea
       IS - ISIS summary, D - EIGRP, EX - EIGRP external, NM - NEMO
       ND - ND Default, NDp - ND Prefix, DCE - Destination, NDr - Redirect
       RL - RPL, O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1
       OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
       la - LISP alt, lr - LISP site-registrations, ld - LISP dyn-eid
       a - Application
ND  ::/0 [2/0]
     via FE80::E30:3FFF:FEDD:9E00, GigabitEthernet0/1
NDp 2001:0:1:2::/64 [2/0]
     via GigabitEthernet0/1, directly connected
L   2001:0:1:2:E30:3FFF:FEDD:B001/128 [0/0]
     via GigabitEthernet0/1, receive
NDp 2001:1:1:2::/64 [2/0]
     via GigabitEthernet0/1, directly connected
L   2001:1:1:2:E30:3FFF:FEDD:B001/128 [0/0]
     via GigabitEthernet0/1, receive
NDp 2001:2:1:2::/64 [2/0]
     via GigabitEthernet0/1, directly connected
L   2001:2:1:2:E30:3FFF:FEDD:B001/128 [0/0]
     via GigabitEthernet0/1, receive
NDp 2001:3:1:2::/64 [2/0]
     via GigabitEthernet0/1, directly connected
L   2001:3:1:2:E30:3FFF:FEDD:B001/128 [0/0]
     via GigabitEthernet0/1, receive
L   FF00::/8 [0/0]
     via Null0, receive
R2#ping 2001:0:1:2::1   
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:0:1:2::1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/5/14 ms
R2#ping 2001:1:1:2::1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1:1:2::1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/4/14 ms
R2#ping 2001:2:1:2::1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:2:1:2::1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/4/13 ms
R2#ping 2001:3:1:2::1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:3:1:2::1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/4/12 ms
R2#ping 2001:0:1:4::1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:0:1:4::1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/2/4 ms
R2#sh ipv6 route ::/0
Routing entry for ::/0
  Known via "ND", distance 2, metric 0
  Route count is 1/1, share count 0
  Routing paths:
    FE80::E30:3FFF:FEDD:9E00, GigabitEthernet0/1
      Last updated 00:35:15 ago

R2#conf t   
Enter configuration commands, one per line.  End with CNTL/Z.
R2(config)#int gig0/1
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 7167 preferred lifetime 57
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591997 preferred lifetime 604797
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591997 preferred lifetime 604797
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591997 preferred lifetime 604797
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 7151 preferred lifetime 51
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591991 preferred lifetime 604791
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591991 preferred lifetime 604791
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591991 preferred lifetime 604791
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#[A
              ^
% Invalid input detected at '^' marker.

R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 7145 preferred lifetime 54
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591994 preferred lifetime 604794
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591994 preferred lifetime 604794
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591994 preferred lifetime 604794
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 7141 preferred lifetime 59
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591999 preferred lifetime 604799
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591999 preferred lifetime 604799
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591999 preferred lifetime 604799
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 7140 preferred lifetime 58
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591998 preferred lifetime 604798
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591998 preferred lifetime 604798
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591998 preferred lifetime 604798
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
R2(config-if)#
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 7046 preferred lifetime 45
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591985 preferred lifetime 604785
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591985 preferred lifetime 604785
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591985 preferred lifetime 604785
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 7044 preferred lifetime 43
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591983 preferred lifetime 604783
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591983 preferred lifetime 604783
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591983 preferred lifetime 604783
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 7039 preferred lifetime 38
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591978 preferred lifetime 604778
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591978 preferred lifetime 604778
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591978 preferred lifetime 604778
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 7036 preferred lifetime 35
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591975 preferred lifetime 604775
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591975 preferred lifetime 604775
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591975 preferred lifetime 604775
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 7034 preferred lifetime 33
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591973 preferred lifetime 604773
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591973 preferred lifetime 604773
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591973 preferred lifetime 604773
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 7033 preferred lifetime 32
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591972 preferred lifetime 604772
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591972 preferred lifetime 604772
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591972 preferred lifetime 604772
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 7031 preferred lifetime 30
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591970 preferred lifetime 604770
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591970 preferred lifetime 604770
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591970 preferred lifetime 604770
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#shut          
R2(config-if)#no shut
*Mar  3 02:28:29.939: %LINK-5-CHANGED: Interface GigabitEthernet0/1, changed state to administratively down
*Mar  3 02:28:30.939: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to down
R2(config-if)#no shut
R2(config-if)#
*Mar  3 02:28:34.173: %LINK-3-UPDOWN: Interface GigabitEthernet0/1, changed state to up
*Mar  3 02:28:35.174: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to up
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  No global unicast address is configured
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  No global unicast address is configured
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 293 preferred lifetime 53
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591993 preferred lifetime 604793
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591993 preferred lifetime 604793
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591993 preferred lifetime 604793
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 299 preferred lifetime 59
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591999 preferred lifetime 604799
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591999 preferred lifetime 604799
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591999 preferred lifetime 604799
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#do sh ipv6 int 
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 270 preferred lifetime 30
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591970 preferred lifetime 604770
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591970 preferred lifetime 604770
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591970 preferred lifetime 604770
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#do sh ipv6 int bri
GigabitEthernet0/0     [administratively down/down]
    unassigned
GigabitEthernet0/1     [up/up]
    FE80::E30:3FFF:FEDD:B001
    2001:0:1:2:E30:3FFF:FEDD:B001
    2001:1:1:2:E30:3FFF:FEDD:B001
    2001:2:1:2:E30:3FFF:FEDD:B001
    2001:3:1:2:E30:3FFF:FEDD:B001
GigabitEthernet0/2     [administratively down/down]
    unassigned
GigabitEthernet0/3     [administratively down/down]
    unassigned
R2(config-if)#do sh ipv6 int    
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 260 preferred lifetime 20
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591960 preferred lifetime 604760
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591960 preferred lifetime 604760
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591960 preferred lifetime 604760
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#do ping 2001:0:1:2::1                
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:0:1:2::1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/4/13 ms
R2(config-if)#do ping 2001:0:1:2::1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:0:1:2::1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/2/5 ms
R2(config-if)#do ping 2001:0:1:2::1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:0:1:2::1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/2/3 ms
R2(config-if)#do sh ipv6 int       
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/DEP]
      valid lifetime 219 preferred lifetime 0
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591919 preferred lifetime 604719
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591919 preferred lifetime 604719
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591919 preferred lifetime 604719
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
  ND reachable time is 30000 milliseconds (using 30000)
  ND advertised reachable time is 0 (unspecified)
  ND advertised retransmit interval is 0 (unspecified)
  ND router advertisements are sent every 200 seconds
  ND router advertisements live for 1800 seconds
  ND advertised default router preference is Medium
  Hosts use stateless autoconfig for addresses.
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/DEP]
      valid lifetime 205 preferred lifetime 0
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591905 preferred lifetime 604705
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591905 preferred lifetime 604705
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591905 preferred lifetime 604705
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/DEP]
      valid lifetime 197 preferred lifetime 0
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591897 preferred lifetime 604697
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591897 preferred lifetime 604697
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591897 preferred lifetime 604697
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/DEP]
      valid lifetime 193 preferred lifetime 0
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591893 preferred lifetime 604693
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591893 preferred lifetime 604693
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591893 preferred lifetime 604693
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#do ping 2001:0:1:2::1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:0:1:2::1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/3/5 ms
R2(config-if)#do sh ipv6 int       
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 295 preferred lifetime 55
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591995 preferred lifetime 604795
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591995 preferred lifetime 604795
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591995 preferred lifetime 604795
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 290 preferred lifetime 50
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591990 preferred lifetime 604790
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591990 preferred lifetime 604790
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591990 preferred lifetime 604790
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 298 preferred lifetime 58
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591998 preferred lifetime 604798
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591998 preferred lifetime 604798
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591998 preferred lifetime 604798
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 293 preferred lifetime 53
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591993 preferred lifetime 604793
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591993 preferred lifetime 604793
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591993 preferred lifetime 604793
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#do sh ipv6 int
GigabitEthernet0/1 is up, line protocol is up
  IPv6 is enabled, link-local address is FE80::E30:3FFF:FEDD:B001 
  No Virtual link-local address(es):
  Stateless address autoconfig enabled
  Global unicast address(es):
    2001:0:1:2:E30:3FFF:FEDD:B001, subnet is 2001:0:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 293 preferred lifetime 53
    2001:1:1:2:E30:3FFF:FEDD:B001, subnet is 2001:1:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591993 preferred lifetime 604793
    2001:2:1:2:E30:3FFF:FEDD:B001, subnet is 2001:2:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591993 preferred lifetime 604793
    2001:3:1:2:E30:3FFF:FEDD:B001, subnet is 2001:3:1:2::/64 [EUI/CAL/PRE]
      valid lifetime 2591993 preferred lifetime 604793
  Joined group address(es):
    FF02::1
    FF02::2
    FF02::1:FFDD:B001
  MTU is 1500 bytes
  ICMP error messages limited to one every 100 milliseconds
  ICMP redirects are enabled
  ICMP unreachables are sent
  ND DAD is enabled, number of DAD attempts: 1
          
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 295 preferred lifetime 55
      valid lifetime 2591995 preferred lifetime 604795
      valid lifetime 2591995 preferred lifetime 604795
      valid lifetime 2591995 preferred lifetime 604795
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 293 preferred lifetime 53
      valid lifetime 2591993 preferred lifetime 604793
      valid lifetime 2591993 preferred lifetime 604793
      valid lifetime 2591993 preferred lifetime 604793
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 299 preferred lifetime 59
      valid lifetime 2591999 preferred lifetime 604799
      valid lifetime 2591999 preferred lifetime 604799
      valid lifetime 2591999 preferred lifetime 604799
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 298 preferred lifetime 58
      valid lifetime 2591998 preferred lifetime 604798
      valid lifetime 2591998 preferred lifetime 604798
      valid lifetime 2591998 preferred lifetime 604798
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 296 preferred lifetime 56
      valid lifetime 2591996 preferred lifetime 604796
      valid lifetime 2591996 preferred lifetime 604796
      valid lifetime 2591996 preferred lifetime 604796
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 295 preferred lifetime 55
      valid lifetime 2591995 preferred lifetime 604795
      valid lifetime 2591995 preferred lifetime 604795
      valid lifetime 2591995 preferred lifetime 604795
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 293 preferred lifetime 53
      valid lifetime 2591993 preferred lifetime 604793
      valid lifetime 2591993 preferred lifetime 604793
      valid lifetime 2591993 preferred lifetime 604793
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 291 preferred lifetime 51
      valid lifetime 2591991 preferred lifetime 604791
      valid lifetime 2591991 preferred lifetime 604791
      valid lifetime 2591991 preferred lifetime 604791
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 299 preferred lifetime 59
      valid lifetime 2591999 preferred lifetime 604799
      valid lifetime 2591999 preferred lifetime 604799
      valid lifetime 2591999 preferred lifetime 604799
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 297 preferred lifetime 57
      valid lifetime 2591997 preferred lifetime 604797
      valid lifetime 2591997 preferred lifetime 604797
      valid lifetime 2591997 preferred lifetime 604797
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 295 preferred lifetime 55
      valid lifetime 2591995 preferred lifetime 604795
      valid lifetime 2591995 preferred lifetime 604795
      valid lifetime 2591995 preferred lifetime 604795
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 293 preferred lifetime 53
      valid lifetime 2591993 preferred lifetime 604793
      valid lifetime 2591993 preferred lifetime 604793
      valid lifetime 2591993 preferred lifetime 604793
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 292 preferred lifetime 52
      valid lifetime 2591992 preferred lifetime 604792
      valid lifetime 2591992 preferred lifetime 604792
      valid lifetime 2591992 preferred lifetime 604792
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 298 preferred lifetime 58
      valid lifetime 2591998 preferred lifetime 604798
      valid lifetime 2591998 preferred lifetime 604798
      valid lifetime 2591998 preferred lifetime 604798
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 297 preferred lifetime 57
      valid lifetime 2591997 preferred lifetime 604797
      valid lifetime 2591997 preferred lifetime 604797
      valid lifetime 2591997 preferred lifetime 604797
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 295 preferred lifetime 55
      valid lifetime 2591995 preferred lifetime 604795
      valid lifetime 2591995 preferred lifetime 604795
      valid lifetime 2591995 preferred lifetime 604795
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 293 preferred lifetime 53
      valid lifetime 2591993 preferred lifetime 604793
      valid lifetime 2591993 preferred lifetime 604793
      valid lifetime 2591993 preferred lifetime 604793
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 291 preferred lifetime 51
      valid lifetime 2591991 preferred lifetime 604791
      valid lifetime 2591991 preferred lifetime 604791
      valid lifetime 2591991 preferred lifetime 604791
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 299 preferred lifetime 59
      valid lifetime 2591999 preferred lifetime 604799
      valid lifetime 2591999 preferred lifetime 604799
      valid lifetime 2591999 preferred lifetime 604799
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 297 preferred lifetime 57
      valid lifetime 2591997 preferred lifetime 604797
      valid lifetime 2591997 preferred lifetime 604797
      valid lifetime 2591997 preferred lifetime 604797
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 295 preferred lifetime 55
      valid lifetime 2591995 preferred lifetime 604795
      valid lifetime 2591995 preferred lifetime 604795
      valid lifetime 2591995 preferred lifetime 604795
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 294 preferred lifetime 54
      valid lifetime 2591994 preferred lifetime 604794
      valid lifetime 2591994 preferred lifetime 604794
      valid lifetime 2591994 preferred lifetime 604794
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 292 preferred lifetime 52
      valid lifetime 2591992 preferred lifetime 604792
      valid lifetime 2591992 preferred lifetime 604792
      valid lifetime 2591992 preferred lifetime 604792
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 298 preferred lifetime 58
      valid lifetime 2591998 preferred lifetime 604798
      valid lifetime 2591998 preferred lifetime 604798
      valid lifetime 2591998 preferred lifetime 604798
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 297 preferred lifetime 57
      valid lifetime 2591997 preferred lifetime 604797
      valid lifetime 2591997 preferred lifetime 604797
      valid lifetime 2591997 preferred lifetime 604797
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 291 preferred lifetime 51
      valid lifetime 2591991 preferred lifetime 604791
      valid lifetime 2591991 preferred lifetime 604791
      valid lifetime 2591991 preferred lifetime 604791
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 290 preferred lifetime 50
      valid lifetime 2591990 preferred lifetime 604790
      valid lifetime 2591990 preferred lifetime 604790
      valid lifetime 2591990 preferred lifetime 604790
R2(config-if)#
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 287 preferred lifetime 47
      valid lifetime 2591987 preferred lifetime 604787
      valid lifetime 2591987 preferred lifetime 604787
      valid lifetime 2591987 preferred lifetime 604787
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 286 preferred lifetime 46
      valid lifetime 2591986 preferred lifetime 604786
      valid lifetime 2591986 preferred lifetime 604786
      valid lifetime 2591986 preferred lifetime 604786
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 285 preferred lifetime 45
      valid lifetime 2591985 preferred lifetime 604785
      valid lifetime 2591985 preferred lifetime 604785
      valid lifetime 2591985 preferred lifetime 604785
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 284 preferred lifetime 44
      valid lifetime 2591984 preferred lifetime 604784
      valid lifetime 2591984 preferred lifetime 604784
      valid lifetime 2591984 preferred lifetime 604784
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 283 preferred lifetime 43
      valid lifetime 2591983 preferred lifetime 604783
      valid lifetime 2591983 preferred lifetime 604783
      valid lifetime 2591983 preferred lifetime 604783
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 282 preferred lifetime 42
      valid lifetime 2591982 preferred lifetime 604782
      valid lifetime 2591982 preferred lifetime 604782
      valid lifetime 2591982 preferred lifetime 604782
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 280 preferred lifetime 40
      valid lifetime 2591980 preferred lifetime 604780
      valid lifetime 2591980 preferred lifetime 604780
      valid lifetime 2591980 preferred lifetime 604780
R2(config-if)#
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 278 preferred lifetime 38
      valid lifetime 2591978 preferred lifetime 604778
      valid lifetime 2591978 preferred lifetime 604778
      valid lifetime 2591978 preferred lifetime 604778
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 277 preferred lifetime 37
      valid lifetime 2591977 preferred lifetime 604777
      valid lifetime 2591977 preferred lifetime 604777
      valid lifetime 2591977 preferred lifetime 604777
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 276 preferred lifetime 36
      valid lifetime 2591976 preferred lifetime 604776
      valid lifetime 2591976 preferred lifetime 604776
      valid lifetime 2591976 preferred lifetime 604776
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 274 preferred lifetime 34
      valid lifetime 2591974 preferred lifetime 604774
      valid lifetime 2591974 preferred lifetime 604774
      valid lifetime 2591974 preferred lifetime 604774
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 273 preferred lifetime 33
      valid lifetime 2591973 preferred lifetime 604773
      valid lifetime 2591973 preferred lifetime 604773
      valid lifetime 2591973 preferred lifetime 604773
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 272 preferred lifetime 32
      valid lifetime 2591972 preferred lifetime 604772
      valid lifetime 2591972 preferred lifetime 604772
      valid lifetime 2591972 preferred lifetime 604772
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 271 preferred lifetime 31
      valid lifetime 2591971 preferred lifetime 604771
      valid lifetime 2591971 preferred lifetime 604771
      valid lifetime 2591971 preferred lifetime 604771
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 270 preferred lifetime 30
      valid lifetime 2591970 preferred lifetime 604770
      valid lifetime 2591970 preferred lifetime 604770
      valid lifetime 2591970 preferred lifetime 604770
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 268 preferred lifetime 28
      valid lifetime 2591968 preferred lifetime 604768
      valid lifetime 2591968 preferred lifetime 604768
      valid lifetime 2591968 preferred lifetime 604768
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 267 preferred lifetime 27
      valid lifetime 2591967 preferred lifetime 604767
      valid lifetime 2591967 preferred lifetime 604767
      valid lifetime 2591967 preferred lifetime 604767
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 266 preferred lifetime 26
      valid lifetime 2591966 preferred lifetime 604766
      valid lifetime 2591966 preferred lifetime 604766
      valid lifetime 2591966 preferred lifetime 604766
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 265 preferred lifetime 25
      valid lifetime 2591965 preferred lifetime 604765
      valid lifetime 2591965 preferred lifetime 604765
      valid lifetime 2591965 preferred lifetime 604765
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 264 preferred lifetime 24
      valid lifetime 2591964 preferred lifetime 604764
      valid lifetime 2591964 preferred lifetime 604764
      valid lifetime 2591964 preferred lifetime 604764
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 262 preferred lifetime 22
      valid lifetime 2591962 preferred lifetime 604762
      valid lifetime 2591962 preferred lifetime 604762
      valid lifetime 2591962 preferred lifetime 604762
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 261 preferred lifetime 21
      valid lifetime 2591961 preferred lifetime 604761
      valid lifetime 2591961 preferred lifetime 604761
      valid lifetime 2591961 preferred lifetime 604761
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 260 preferred lifetime 20
      valid lifetime 2591960 preferred lifetime 604760
      valid lifetime 2591960 preferred lifetime 604760
      valid lifetime 2591960 preferred lifetime 604760
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 259 preferred lifetime 19
      valid lifetime 2591959 preferred lifetime 604759
      valid lifetime 2591959 preferred lifetime 604759
      valid lifetime 2591959 preferred lifetime 604759
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 258 preferred lifetime 18
      valid lifetime 2591958 preferred lifetime 604758
      valid lifetime 2591958 preferred lifetime 604758
      valid lifetime 2591958 preferred lifetime 604758
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 257 preferred lifetime 17
      valid lifetime 2591957 preferred lifetime 604757
      valid lifetime 2591957 preferred lifetime 604757
      valid lifetime 2591957 preferred lifetime 604757
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 255 preferred lifetime 15
      valid lifetime 2591955 preferred lifetime 604755
      valid lifetime 2591955 preferred lifetime 604755
      valid lifetime 2591955 preferred lifetime 604755
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 254 preferred lifetime 14
      valid lifetime 2591954 preferred lifetime 604754
      valid lifetime 2591954 preferred lifetime 604754
      valid lifetime 2591954 preferred lifetime 604754
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 298 preferred lifetime 58
      valid lifetime 2591998 preferred lifetime 604798
      valid lifetime 2591998 preferred lifetime 604798
      valid lifetime 2591998 preferred lifetime 604798
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 290 preferred lifetime 50
      valid lifetime 2591990 preferred lifetime 604790
      valid lifetime 2591990 preferred lifetime 604790
      valid lifetime 2591990 preferred lifetime 604790
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 289 preferred lifetime 49
      valid lifetime 2591989 preferred lifetime 604789
      valid lifetime 2591989 preferred lifetime 604789
      valid lifetime 2591989 preferred lifetime 604789
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 288 preferred lifetime 48
      valid lifetime 2591988 preferred lifetime 604788
      valid lifetime 2591988 preferred lifetime 604788
      valid lifetime 2591988 preferred lifetime 604788
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 288 preferred lifetime 48
      valid lifetime 2591988 preferred lifetime 604788
      valid lifetime 2591988 preferred lifetime 604788
      valid lifetime 2591988 preferred lifetime 604788
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 287 preferred lifetime 47
      valid lifetime 2591987 preferred lifetime 604787
      valid lifetime 2591987 preferred lifetime 604787
      valid lifetime 2591987 preferred lifetime 604787
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 287 preferred lifetime 47
      valid lifetime 2591987 preferred lifetime 604787
      valid lifetime 2591987 preferred lifetime 604787
      valid lifetime 2591987 preferred lifetime 604787
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 286 preferred lifetime 46
      valid lifetime 2591986 preferred lifetime 604786
      valid lifetime 2591986 preferred lifetime 604786
      valid lifetime 2591986 preferred lifetime 604786
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 286 preferred lifetime 46
      valid lifetime 2591986 preferred lifetime 604786
      valid lifetime 2591986 preferred lifetime 604786
      valid lifetime 2591986 preferred lifetime 604786
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 286 preferred lifetime 46
      valid lifetime 2591986 preferred lifetime 604786
      valid lifetime 2591986 preferred lifetime 604786
      valid lifetime 2591986 preferred lifetime 604786
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 285 preferred lifetime 45
      valid lifetime 2591985 preferred lifetime 604785
      valid lifetime 2591985 preferred lifetime 604785
      valid lifetime 2591985 preferred lifetime 604785
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 285 preferred lifetime 45
      valid lifetime 2591985 preferred lifetime 604785
      valid lifetime 2591985 preferred lifetime 604785
      valid lifetime 2591985 preferred lifetime 604785
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 284 preferred lifetime 44
      valid lifetime 2591984 preferred lifetime 604784
      valid lifetime 2591984 preferred lifetime 604784
      valid lifetime 2591984 preferred lifetime 604784
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 284 preferred lifetime 44
      valid lifetime 2591984 preferred lifetime 604784
      valid lifetime 2591984 preferred lifetime 604784
      valid lifetime 2591984 preferred lifetime 604784
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 283 preferred lifetime 43
      valid lifetime 2591983 preferred lifetime 604783
      valid lifetime 2591983 preferred lifetime 604783
      valid lifetime 2591983 preferred lifetime 604783
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 283 preferred lifetime 43
      valid lifetime 2591983 preferred lifetime 604783
      valid lifetime 2591983 preferred lifetime 604783
      valid lifetime 2591983 preferred lifetime 604783
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 282 preferred lifetime 42
      valid lifetime 2591982 preferred lifetime 604782
      valid lifetime 2591982 preferred lifetime 604782
      valid lifetime 2591982 preferred lifetime 604782
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 282 preferred lifetime 42
      valid lifetime 2591982 preferred lifetime 604782
      valid lifetime 2591982 preferred lifetime 604782
      valid lifetime 2591982 preferred lifetime 604782
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 281 preferred lifetime 41
      valid lifetime 2591981 preferred lifetime 604781
      valid lifetime 2591981 preferred lifetime 604781
      valid lifetime 2591981 preferred lifetime 604781
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 280 preferred lifetime 40
      valid lifetime 2591980 preferred lifetime 604780
      valid lifetime 2591980 preferred lifetime 604780
      valid lifetime 2591980 preferred lifetime 604780
R2(config-if)#dog pin 2001:0:1:2::1
                ^
% Invalid input detected at '^' marker.

R2(config-if)#do pin 2001:0:1:2::1 
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:0:1:2::1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/2/4 ms
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 243 preferred lifetime 3
      valid lifetime 2591943 preferred lifetime 604743
      valid lifetime 2591943 preferred lifetime 604743
      valid lifetime 2591943 preferred lifetime 604743
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 241 preferred lifetime 1
      valid lifetime 2591941 preferred lifetime 604741
      valid lifetime 2591941 preferred lifetime 604741
      valid lifetime 2591941 preferred lifetime 604741
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 240 preferred lifetime 0
      valid lifetime 2591940 preferred lifetime 604740
      valid lifetime 2591940 preferred lifetime 604740
      valid lifetime 2591940 preferred lifetime 604740
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 239 preferred lifetime 0
      valid lifetime 2591939 preferred lifetime 604739
      valid lifetime 2591939 preferred lifetime 604739
      valid lifetime 2591939 preferred lifetime 604739
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 238 preferred lifetime 0
      valid lifetime 2591938 preferred lifetime 604738
      valid lifetime 2591938 preferred lifetime 604738
      valid lifetime 2591938 preferred lifetime 604738
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 237 preferred lifetime 0
      valid lifetime 2591937 preferred lifetime 604737
      valid lifetime 2591937 preferred lifetime 604737
      valid lifetime 2591937 preferred lifetime 604737
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 237 preferred lifetime 0
      valid lifetime 2591937 preferred lifetime 604737
      valid lifetime 2591937 preferred lifetime 604737
      valid lifetime 2591937 preferred lifetime 604737
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 236 preferred lifetime 0
      valid lifetime 2591936 preferred lifetime 604736
      valid lifetime 2591936 preferred lifetime 604736
      valid lifetime 2591936 preferred lifetime 604736
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 233 preferred lifetime 0
      valid lifetime 2591933 preferred lifetime 604733
      valid lifetime 2591933 preferred lifetime 604733
      valid lifetime 2591933 preferred lifetime 604733
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 232 preferred lifetime 0
      valid lifetime 2591932 preferred lifetime 604732
      valid lifetime 2591932 preferred lifetime 604732
      valid lifetime 2591932 preferred lifetime 604732
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 201 preferred lifetime 0
      valid lifetime 2591901 preferred lifetime 604701
      valid lifetime 2591901 preferred lifetime 604701
      valid lifetime 2591901 preferred lifetime 604701
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 199 preferred lifetime 0
      valid lifetime 2591899 preferred lifetime 604699
      valid lifetime 2591899 preferred lifetime 604699
      valid lifetime 2591899 preferred lifetime 604699
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 199 preferred lifetime 0
      valid lifetime 2591899 preferred lifetime 604699
      valid lifetime 2591899 preferred lifetime 604699
      valid lifetime 2591899 preferred lifetime 604699
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 198 preferred lifetime 0
      valid lifetime 2591898 preferred lifetime 604698
      valid lifetime 2591898 preferred lifetime 604698
      valid lifetime 2591898 preferred lifetime 604698
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 197 preferred lifetime 0
      valid lifetime 2591897 preferred lifetime 604697
      valid lifetime 2591897 preferred lifetime 604697
      valid lifetime 2591897 preferred lifetime 604697
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 195 preferred lifetime 0
      valid lifetime 2591895 preferred lifetime 604695
      valid lifetime 2591895 preferred lifetime 604695
      valid lifetime 2591895 preferred lifetime 604695
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 192 preferred lifetime 0
      valid lifetime 2591892 preferred lifetime 604692
      valid lifetime 2591892 preferred lifetime 604692
      valid lifetime 2591892 preferred lifetime 604692
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 190 preferred lifetime 0
      valid lifetime 2591890 preferred lifetime 604690
      valid lifetime 2591890 preferred lifetime 604690
      valid lifetime 2591890 preferred lifetime 604690
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 187 preferred lifetime 0
      valid lifetime 2591887 preferred lifetime 604687
      valid lifetime 2591887 preferred lifetime 604687
      valid lifetime 2591887 preferred lifetime 604687
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 2591455 preferred lifetime 604255
      valid lifetime 2591455 preferred lifetime 604255
      valid lifetime 2591455 preferred lifetime 604255
R2(config-if)#do sh ipv6 int | i valid
      valid lifetime 298 preferred lifetime 58
      valid lifetime 2591998 preferred lifetime 604798
      valid lifetime 2591998 preferred lifetime 604798
      valid lifetime 2591998 preferred lifetime 604798
R2(config-if)#

Static Route

  • R1
enable
configure terminal
!
hostname R1
no ip domain-lookup
line console 0
exec-timeout 0 0
logging synchronous
exit
!
ipv6 unicast-routing
!
interface GigabitEthernet 0/0
ipv6 address fe80::1 link-local
ipv6 address 2001:1234:1:2::1/64
no shutdown
exit
interface GigabitEthernet 0/1
ipv6 address fe80::1 link-local
ipv6 address 2001:1234:1:4::1/64
no shutdown
exit
!
end
write
  • R2
enable
configure terminal
!
hostname R2
no ip domain-lookup
line console 0
exec-timeout 0 0
logging synchronous
exit
!
ipv6 unicast-routing
!
interface GigabitEthernet 0/0
ipv6 address fe80::2 link-local
ipv6 address 2001:1234:2:3::2/64
no shutdown
exit
interface GigabitEthernet 0/1
ipv6 address fe80::2 link-local
ipv6 address 2001:1234:1:2::2/64
no shutdown
exit
!
end
write
  • R3
enable
configure terminal
!
hostname R3
no ip domain-lookup
line console 0
exec-timeout 0 0
logging synchronous
exit
!
ipv6 unicast-routing
!
interface GigabitEthernet 0/0
ipv6 address fe80::3 link-local
ipv6 address 2001:1234:3:4::3/64
no shutdown
exit
interface GigabitEthernet 0/1
ipv6 address fe80::3 link-local
ipv6 address 2001:1234:2:3::3/64
no shutdown
exit
!
end
write
  • R4
enable
configure terminal
!
ipv6 unicast-routing
!
hostname R4
no ip domain-lookup
line console 0
exec-timeout 0 0
logging synchronous
exit
!
interface GigabitEthernet 0/0
ipv6 address fe80::4 link-local
ipv6 address 2001:1234:1:4::4/64
no shutdown
exit
interface GigabitEthernet 0/1
ipv6 address fe80::4 link-local
ipv6 address 2001:1234:3:4::4/64
no shutdown
exit
!
end
write
  • R1
configure terminal
!
ipv6 route 2001:1234:2:3::/64 Gig0/0 fe80::2
ipv6 route ::/0 gig0/1 fe80::4
!
end
  • R3
configure terminal
!
ipv6 route 2001:1234:1:2::/64 Gig0/1 fe80::2
ipv6 route ::/0 gig0/0 fe80::4
!
end

default route case 2

  • R1
configure terminal
!
ipv6 route ::/0 gig0/0 fe80::2
!
end
  • R2
configure terminal
!
ipv6 route ::/0 gig0/0 fe80::3
!
end
  • R3
configure terminal
!
ipv6 route ::/0 gig0/0 fe80::4
ipv6 route 2001:1234:1:2::/64 gig0/1 fe80::2
!
end
  • R4
configure terminal
!
ipv6 route ::/0 gig0/1 fe80::3
!
end

drop specific route.

  • R1
configure terminal
!
ipv6 route 2001:1234:3:4::/64 Null0
!
end
R1#ping 2001:1234:1:2::2 
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:1:2::2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/6/23 ms
R1#ping 2001:1234:2:3::2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:2:3::2, timeout is 2 seconds:

% No valid route for destination
Success rate is 0 percent (0/1)
R1#conf t               
Enter configuration commands, one per line.  End with CNTL/Z.
R1(config)#ipv6  
R1(config)#ipv6 rou
R1(config)#ipv6 route 2001:1234:2:3::/64 ?      
  Async              Async interface
  Auto-Template      Auto-Template interface
  BDI                Bridge-Domain interface
  BVI                Bridge-Group Virtual Interface
  CDMA-Ix            CDMA Ix interface
  CTunnel            CTunnel interface
  Dialer             Dialer interface
  GMPLS              MPLS interface
  GigabitEthernet    GigabitEthernet IEEE 802.3z
  LISP               Locator/ID Separation Protocol Virtual Interface
  LongReachEthernet  Long-Reach Ethernet interface
  Loopback           Loopback interface
  Lspvif             LSP virtual interface
  MFR                Multilink Frame Relay bundle interface
  Multilink          Multilink-group interface
  Null               Null interface
  Tunnel             Tunnel interface
  Vif                PGM Multicast Host interface
  Virtual-PPP        Virtual PPP interface
  Virtual-Template   Virtual Template interface
  Virtual-TokenRing  Virtual TokenRing
  X:X:X:X::X         IPv6 address of next-hop
  vmi                Virtual Multipoint Interface

R1(config)#ipv6 route 2001:1234:2:3::/64 Gig0/0 ? 
  <1-254>      Administrative distance
  X:X:X:X::X   IPv6 address of next-hop
  multicast    Route only usable by multicast
  name         Name of static route
  nexthop-vrf  Nexthop IPv6 VRF
  tag          Tag value
  track        Tracked
  unicast      Route only usable by unicast
  <cr>

R1(config)#ipv6 route 2001:1234:2:3::/64 Gig0/0 fe80
R1(config)#ipv6 route 2001:1234:2:3::/64 Gig0/0 fe80::2
R1(config)#ipv6 route 2001:1234:2:3::/64 Gig0/0 fe80::2
R1(config)#do ping 2001:1234:2:3::2                    
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:2:3::2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/3/5 ms
R1(config)#do ping 2001:1234:2:3::3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:2:3::3, timeout is 2 seconds:
...
Success rate is 0 percent (0/3)
R1(config)#do ping 2001:1234:2:3::3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:2:3::3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 3/4/5 ms
R1(config)#do sh ipv6 rou
R1(config)#do sh ipv6 route
IPv6 Routing Table - default - 6 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
       B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP
       H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea
       IS - ISIS summary, D - EIGRP, EX - EIGRP external, NM - NEMO
       ND - ND Default, NDp - ND Prefix, DCE - Destination, NDr - Redirect
       RL - RPL, O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1
       OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
       la - LISP alt, lr - LISP site-registrations, ld - LISP dyn-eid
       a - Application
C   2001:1234:1:2::/64 [0/0]
     via GigabitEthernet0/0, directly connected
L   2001:1234:1:2::1/128 [0/0]
     via GigabitEthernet0/0, receive
C   2001:1234:1:4::/64 [0/0]
     via GigabitEthernet0/1, directly connected
L   2001:1234:1:4::1/128 [0/0]
     via GigabitEthernet0/1, receive
S   2001:1234:2:3::/64 [1/0]
     via FE80::2, GigabitEthernet0/0
L   FF00::/8 [0/0]
     via Null0, receive
R1(config)#do ping 2001:1234:3:4::3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:3:4::3, timeout is 2 seconds:

% No valid route for destination
Success rate is 0 percent (0/1)
R1(config)#ipv
R1(config)#ipv6 rou
R1(config)#ipv6 route ::/0
R1(config)#ipv6 route ::/0 gig0/1 fe80::4
R1(config)#do ping 2001:1234:3:4::3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:3:4::3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 3/8/24 ms
R1(config)#do ping 2001:1234:3:4::4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:3:4::4, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 3/3/4 ms
R1(config)#do sh ipv6 route
IPv6 Routing Table - default - 7 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
       B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP
       H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea
       IS - ISIS summary, D - EIGRP, EX - EIGRP external, NM - NEMO
       ND - ND Default, NDp - ND Prefix, DCE - Destination, NDr - Redirect
       RL - RPL, O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1
       OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
       la - LISP alt, lr - LISP site-registrations, ld - LISP dyn-eid
       a - Application
S   ::/0 [1/0]
     via FE80::4, GigabitEthernet0/1
C   2001:1234:1:2::/64 [0/0]
     via GigabitEthernet0/0, directly connected
L   2001:1234:1:2::1/128 [0/0]
     via GigabitEthernet0/0, receive
C   2001:1234:1:4::/64 [0/0]
     via GigabitEthernet0/1, directly connected
L   2001:1234:1:4::1/128 [0/0]
     via GigabitEthernet0/1, receive
S   2001:1234:2:3::/64 [1/0]
     via FE80::2, GigabitEthernet0/0
L   FF00::/8 [0/0]
     via Null0, receive
R1(config)#no ipv6 route 2001:1234:1:2::/64 Gig0/1 fe80::2
% No matching route to delete
R1(config)#no ipv6 route 2001:1234:2:3::/64 Gig0/0 fe80::2
R1(config)#no ipv6 route ::/0 gig0/1 fe80::4
R1(config)#do sh ipv6 route
IPv6 Routing Table - default - 5 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
       B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP
       H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea
       IS - ISIS summary, D - EIGRP, EX - EIGRP external, NM - NEMO
       ND - ND Default, NDp - ND Prefix, DCE - Destination, NDr - Redirect
       RL - RPL, O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1
       OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
       la - LISP alt, lr - LISP site-registrations, ld - LISP dyn-eid
       a - Application
C   2001:1234:1:2::/64 [0/0]
     via GigabitEthernet0/0, directly connected
L   2001:1234:1:2::1/128 [0/0]
     via GigabitEthernet0/0, receive
C   2001:1234:1:4::/64 [0/0]
     via GigabitEthernet0/1, directly connected
L   2001:1234:1:4::1/128 [0/0]
     via GigabitEthernet0/1, receive
L   FF00::/8 [0/0]
     via Null0, receive
R1(config)#do ping 2001:1234:3:4::4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:3:4::4, timeout is 2 seconds:

% No valid route for destination
Success rate is 0 percent (0/1)
R1(config)#ipv
R1(config)#ipv6 rou
R1(config)#ipv6 route ::/0 gig0/0 fe80::2
R1(config)#do ping 2001:1234:3:4::4      
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:3:4::4, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
R1(config)#do ping 2001:1234:3:4::4 soucrce 2001:1234:1:2::2
                                       ^
% Invalid input detected at '^' marker.

R1(config)#do ping 2001:1234:3:4::4 source 2001:1234:1:2::2 
% No valid source address for destination
R1(config)#do ping 2001:1234:3:4::4 source 2001:1234:1:2::1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:3:4::4, timeout is 2 seconds:
Packet sent with a source address of 2001:1234:1:2::1
..
Success rate is 0 percent (0/2)
R1(config)#do ping 2001:1234:1:2::2                        
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:1:2::2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/3/5 ms
R1(config)#do ping 2001:1234:2:3::3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:2:3::3, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
R1(config)#do ping 2001:1234:2:3::2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:2:3::2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/3/6 ms
R1(config)#do ping 2001:1234:2:3::2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:2:3::2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/3/5 ms
R1(config)#do ping 2001:1234:3:4::4                         
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:3:4::4, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 5/6/10 ms
R1(config)#do sh ipv6 route        
IPv6 Routing Table - default - 6 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
       B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP
       H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea
       IS - ISIS summary, D - EIGRP, EX - EIGRP external, NM - NEMO
       ND - ND Default, NDp - ND Prefix, DCE - Destination, NDr - Redirect
       RL - RPL, O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1
       OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
       la - LISP alt, lr - LISP site-registrations, ld - LISP dyn-eid
       a - Application
S   ::/0 [1/0]
     via FE80::2, GigabitEthernet0/0
C   2001:1234:1:2::/64 [0/0]
     via GigabitEthernet0/0, directly connected
L   2001:1234:1:2::1/128 [0/0]
     via GigabitEthernet0/0, receive
C   2001:1234:1:4::/64 [0/0]
     via GigabitEthernet0/1, directly connected
L   2001:1234:1:4::1/128 [0/0]
     via GigabitEthernet0/1, receive
L   FF00::/8 [0/0]
     via Null0, receive
R1(config)#ipv6 route 2001:1234:3:4::/64 Nu
R1(config)#ipv6 route 2001:1234:3:4::/64 Null 0
R1(config)#do sh ipv6 rout
IPv6 Routing Table - default - 7 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
       B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP
       H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea
       IS - ISIS summary, D - EIGRP, EX - EIGRP external, NM - NEMO
       ND - ND Default, NDp - ND Prefix, DCE - Destination, NDr - Redirect
       RL - RPL, O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1
       OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
       la - LISP alt, lr - LISP site-registrations, ld - LISP dyn-eid
       a - Application
S   ::/0 [1/0]
     via FE80::2, GigabitEthernet0/0
C   2001:1234:1:2::/64 [0/0]
     via GigabitEthernet0/0, directly connected
L   2001:1234:1:2::1/128 [0/0]
     via GigabitEthernet0/0, receive
C   2001:1234:1:4::/64 [0/0]
     via GigabitEthernet0/1, directly connected
L   2001:1234:1:4::1/128 [0/0]
     via GigabitEthernet0/1, receive
S   2001:1234:3:4::/64 [1/0]
     via Null0, directly connected
L   FF00::/8 [0/0]
     via Null0, receive
R1(config)#do ping 2001:1234:3:4::4            
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:3:4::4, timeout is 2 seconds:
..
Success rate is 0 percent (0/2)
R1(config)#do ping 2001:1234:3:4::4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:3:4::4, timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)
R1(config)#do ping 2001:1234:2:3::3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 2001:1234:2:3::3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 3/4/7 ms
R3#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
R3(config)#ipv
R3(config)#ipv6 route 2001:1234:1:2::/64 gig0/1 fe80::2
R3(config)#ipv6 route
R3(config)#ipv6 route ::/0 gig0/0 fe80::4
R3(config)#no ipv6 route 2001:1234:1:2::/64 gig0/1 fe80::2
R3(config)#no ipv6 route ::/0 gig0/0 fe80::4              
R3(config)#ipv6 route ::/0 gig0/0 fe80::4
R3(config)#
*Mar  3 23:11:48.325: %LINK-2-INTVULN: In critical region with interrupt level=0, intfc=GigabitEthernet0/0 -Process= "IPv6 ND", ipl= 0, pid= 367
-Traceback= 1140C0Az 218A05z 13E44Bz 21484E0z 2154653z 14DA1Bz 14CF64z 15884Az 1597ABz 15973Fz 21DC53z 2049B2Az 204974Cz 204ADDEz 204AF7Ez 203E9E7z
R3(config)#do sh ipv6 ro                    
IPv6 Routing Table - default - 6 entries
Codes: C - Connected, L - Local, S - Static, U - Per-user Static route
       B - BGP, HA - Home Agent, MR - Mobile Router, R - RIP
       H - NHRP, I1 - ISIS L1, I2 - ISIS L2, IA - ISIS interarea
       IS - ISIS summary, D - EIGRP, EX - EIGRP external, NM - NEMO
       ND - ND Default, NDp - ND Prefix, DCE - Destination, NDr - Redirect
       RL - RPL, O - OSPF Intra, OI - OSPF Inter, OE1 - OSPF ext 1
       OE2 - OSPF ext 2, ON1 - OSPF NSSA ext 1, ON2 - OSPF NSSA ext 2
       la - LISP alt, lr - LISP site-registrations, ld - LISP dyn-eid
       a - Application
S   ::/0 [1/0]
     via FE80::4, GigabitEthernet0/0
C   2001:1234:2:3::/64 [0/0]
     via GigabitEthernet0/1, directly connected
L   2001:1234:2:3::3/128 [0/0]
     via GigabitEthernet0/1, receive
C   2001:1234:3:4::/64 [0/0]
     via GigabitEthernet0/0, directly connected
L   2001:1234:3:4::3/128 [0/0]
     via GigabitEthernet0/0, receive
L   FF00::/8 [0/0]
     via Null0, receive
R3(config)#do sh run | i ipv6 route
ipv6 route ::/0 GigabitEthernet0/0 FE80::4
R3(config)#ipv
R3(config)#ipv6 rou
R3(config)#ipv6 route 2001:1234:1:2::/64 gig0/1 fe80::2

References

tech/network/cisco/ipv6/ipv6-again/ipv6-again.txt · Last modified: 2019/03/05 07:21 by wnoguchi