tech:network:cisco:advanced-rip-config:advanced-rip-config
Table of Contents
Advanced RIP configuration
GNS3 Virtual Lab.
Key Feature
no auto-summarypassive-interface gig0/0maximum-paths 2default-information originate
Disable Auto Summarization
Topology
Initial Config
- R1
conf t ! hostname R1 ! int gig0/0 ip addr 172.16.1.1 255.255.255.0 no shut exit int gig0/1 ip addr 192.168.1.1 255.255.255.0 no shut exit ! end wr
- R2
conf t ! hostname R2 ! int gig0/0 ip addr 192.168.1.2 255.255.255.0 no shut exit int gig0/1 ip addr 192.168.2.2 255.255.255.0 no shut exit ! end wr
- R3
conf t ! hostname R3 ! int gig0/0 ip addr 192.168.2.3 255.255.255.0 no shut exit int gig0/1 ip addr 172.16.2.3 255.255.255.0 no shut exit ! end wr
- PC-1
ip 172.16.1.254 255.255.255.0 172.16.1.1 save
- PC-2
ip 172.16.2.254 255.255.255.0 172.16.2.3 save
Configuration without no auto-summary
- R1
conf t ! router rip network 172.16.0.0 network 192.168.1.0 version 2 exit ! end
- R2
conf t ! router rip network 192.168.1.0 network 192.168.2.0 version 2 exit ! end
- R3
conf t ! router rip network 172.16.0.0 network 192.168.2.0 version 2 exit ! end
Verification without no auto-summary
- R1
R1#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
172.16.0.0/16 is variably subnetted, 3 subnets, 3 masks
R 172.16.0.0/16 [120/2] via 192.168.1.2, 00:01:51, GigabitEthernet0/1
C 172.16.1.0/24 is directly connected, GigabitEthernet0/0
L 172.16.1.1/32 is directly connected, GigabitEthernet0/0
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, GigabitEthernet0/1
L 192.168.1.1/32 is directly connected, GigabitEthernet0/1
R 192.168.2.0/24 [120/1] via 192.168.1.2, 00:00:07, GigabitEthernet0/1
- R2
R2#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 172.16.0.0/16 [120/1] via 192.168.2.3, 00:00:13, GigabitEthernet0/1
[120/1] via 192.168.1.1, 00:00:20, GigabitEthernet0/0
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, GigabitEthernet0/0
L 192.168.1.2/32 is directly connected, GigabitEthernet0/0
192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.2.0/24 is directly connected, GigabitEthernet0/1
L 192.168.2.2/32 is directly connected, GigabitEthernet0/1
- R3
R3#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
172.16.0.0/16 is variably subnetted, 2 subnets, 2 masks
C 172.16.2.0/24 is directly connected, GigabitEthernet0/1
L 172.16.2.3/32 is directly connected, GigabitEthernet0/1
R 192.168.1.0/24 [120/1] via 192.168.2.2, 00:00:18, GigabitEthernet0/0
192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.2.0/24 is directly connected, GigabitEthernet0/0
L 192.168.2.3/32 is directly connected, GigabitEthernet0/0
PC-1> ping 172.16.2.254 *172.16.1.1 icmp_seq=1 ttl=255 time=3.007 ms (ICMP type:3, code:1, Destination host unreachable) *172.16.1.1 icmp_seq=2 ttl=255 time=2.431 ms (ICMP type:3, code:1, Destination host unreachable) *172.16.1.1 icmp_seq=3 ttl=255 time=2.510 ms (ICMP type:3, code:1, Destination host unreachable) *172.16.1.1 icmp_seq=4 ttl=255 time=2.138 ms (ICMP type:3, code:1, Destination host unreachable) *172.16.1.1 icmp_seq=5 ttl=255 time=2.223 ms (ICMP type:3, code:1, Destination host unreachable) PC-1> ping 192.168.2.3 192.168.2.3 icmp_seq=1 timeout 192.168.2.3 icmp_seq=2 timeout 192.168.2.3 icmp_seq=3 timeout 192.168.2.3 icmp_seq=4 timeout 192.168.2.3 icmp_seq=5 timeout
R1#ping 192.168.2.3 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.2.3, timeout is 2 seconds: !!!!! Success rate is 100 percent (5/5), round-trip min/avg/max = 5/6/8 ms
R2#ping 172.16.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 3/4/9 ms
R2#ping 172.16.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/4/4 ms
R2#ping 172.16.2.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 172.16.2.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/5/8 ms
R2#ping 172.16.2.3 rep
R2#ping 172.16.2.3 repeat 1000
Type escape sequence to abort.
Sending 1000, 100-byte ICMP Echos to 172.16.2.3, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (1000/1000), round-trip min/avg/max = 2/3/23 ms
R2#ping 172.16.1.1 repeat 1000
Type escape sequence to abort.
Sending 1000, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (1000/1000), round-trip min/avg/max = 2/3/6 ms
R2#cle
R2#clear ar
R2#clear arp
R2#clear ar
R2#clear arp
R2#clear arp-cache
R2#ping 172.16.1.1 repeat 1000
Type escape sequence to abort.
Sending 1000, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (1000/1000), round-trip min/avg/max = 2/3/22 ms
R2#ping 172.16.1.1 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (100/100), round-trip min/avg/max = 2/3/6 ms
R2#ping 172.16.2.3 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.16.2.3, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (100/100), round-trip min/avg/max = 3/3/6 ms
R2#sh ip arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 192.168.1.1 0 5267.24af.d301 ARPA GigabitEthernet0/0
Internet 192.168.1.2 - 5267.245f.bf00 ARPA GigabitEthernet0/0
Internet 192.168.2.2 - 5267.245f.bf01 ARPA GigabitEthernet0/1
Internet 192.168.2.3 0 5267.24eb.ff00 ARPA GigabitEthernet0/1
R2#clear arp-cache
R2#sh ip arp
Protocol Address Age (min) Hardware Addr Type Interface
Internet 192.168.1.1 0 5267.24af.d301 ARPA GigabitEthernet0/0
Internet 192.168.1.2 - 5267.245f.bf00 ARPA GigabitEthernet0/0
Internet 192.168.2.2 - 5267.245f.bf01 ARPA GigabitEthernet0/1
Internet 192.168.2.3 0 5267.24eb.ff00 ARPA GigabitEthernet0/1
R2#clear ip ?
access-list Clear access list statistical information
access-template Access-template
accounting Clear IP accounting database
admission Clear Network Admission Control information
arp IP ARP table
auth-proxy Clear the auth-proxy info
bgp Clear BGP connections
cache Delete cache table entries
cef Cisco Express Forwarding info
cgmp Cisco Group Management Protocol (CGMP)
device Clear IP Device
dhcp Delete items from the DHCP database
dns-cache Clear addresses in DNS cache
dns-snoop-cache Clear addresses in DNS cache
drp Clear director responder counters
eigrp Clear IPv4 EIGRP
flow Clear flow information
http Clear HTTP parameters
icmp ICMP information
igmp IGMP clear commands
inspect Clear commands for IOS firewall
ips Clear IPS information
R2#clear ip ar
R2#clear ip arp
% Incomplete command.
R2#clear ip arp *
^
% Invalid input detected at '^' marker.
R2#clear ip arp ?
A.B.C.D IP address of dynamic ARP entry
R2#clear ip ro *
R2#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 172.16.0.0/16 [120/1] via 192.168.2.3, 00:00:06, GigabitEthernet0/1
[120/1] via 192.168.1.1, 00:00:06, GigabitEthernet0/0
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, GigabitEthernet0/0
L 192.168.1.2/32 is directly connected, GigabitEthernet0/0
192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.2.0/24 is directly connected, GigabitEthernet0/1
L 192.168.2.2/32 is directly connected, GigabitEthernet0/1
R2#clear ip ro *
R2#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 172.16.0.0/16 [120/1] via 192.168.2.3, 00:00:01, GigabitEthernet0/1
[120/1] via 192.168.1.1, 00:00:01, GigabitEthernet0/0
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, GigabitEthernet0/0
L 192.168.1.2/32 is directly connected, GigabitEthernet0/0
192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.2.0/24 is directly connected, GigabitEthernet0/1
L 192.168.2.2/32 is directly connected, GigabitEthernet0/1
R2#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 172.16.0.0/16 [120/1] via 192.168.2.3, 00:00:02, GigabitEthernet0/1
[120/1] via 192.168.1.1, 00:00:02, GigabitEthernet0/0
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, GigabitEthernet0/0
L 192.168.1.2/32 is directly connected, GigabitEthernet0/0
192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.2.0/24 is directly connected, GigabitEthernet0/1
L 192.168.2.2/32 is directly connected, GigabitEthernet0/1
R2#clear ip ro ?
* Delete all routes
A.B.C.D Destination network route to delete
dhcp Delete route added by DHCP Server or Relay
multicast Multicast global information
topology Clear routes for a topology instance
vrf Clear routes for a VPN Routing/Forwarding instance
R2#clear ip ro *
R2#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 172.16.0.0/16 [120/1] via 192.168.2.3, 00:00:01, GigabitEthernet0/1
[120/1] via 192.168.1.1, 00:00:01, GigabitEthernet0/0
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, GigabitEthernet0/0
L 192.168.1.2/32 is directly connected, GigabitEthernet0/0
192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.2.0/24 is directly connected, GigabitEthernet0/1
L 192.168.2.2/32 is directly connected, GigabitEthernet0/1
R2#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 172.16.0.0/16 [120/1] via 192.168.2.3, 00:00:03, GigabitEthernet0/1
[120/1] via 192.168.1.1, 00:00:03, GigabitEthernet0/0
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, GigabitEthernet0/0
L 192.168.1.2/32 is directly connected, GigabitEthernet0/0
192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.2.0/24 is directly connected, GigabitEthernet0/1
L 192.168.2.2/32 is directly connected, GigabitEthernet0/1
R2#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 172.16.0.0/16 [120/1] via 192.168.2.3, 00:00:03, GigabitEthernet0/1
[120/1] via 192.168.1.1, 00:00:03, GigabitEthernet0/0
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, GigabitEthernet0/0
L 192.168.1.2/32 is directly connected, GigabitEthernet0/0
192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.2.0/24 is directly connected, GigabitEthernet0/1
L 192.168.2.2/32 is directly connected, GigabitEthernet0/1
R2#ping 172.16.2.3 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.16.2.3, timeout is 2 seconds:
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
Success rate is 0 percent (0/100)
R2#ping 172.16.2.3 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.16.2.3, timeout is 2 seconds:
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
Success rate is 0 percent (0/100)
R2#ping 172.16.1.1 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
Success rate is 0 percent (0/100)
R2#clear ip ro *
R2#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 172.16.0.0/16 [120/1] via 192.168.2.3, 00:00:03, GigabitEthernet0/1
[120/1] via 192.168.1.1, 00:00:02, GigabitEthernet0/0
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, GigabitEthernet0/0
L 192.168.1.2/32 is directly connected, GigabitEthernet0/0
192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.2.0/24 is directly connected, GigabitEthernet0/1
L 192.168.2.2/32 is directly connected, GigabitEthernet0/1
R2#ping 172.16.2.3 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.16.2.3, timeout is 2 seconds:
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
Success rate is 0 percent (0/100)
R2#clear ip ro *
R2#ping 172.16.2.3 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.16.2.3, timeout is 2 seconds:
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
Success rate is 0 percent (0/100)
R2#clear ip ro *
R2#ping 172.16.2.3 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.16.2.3, timeout is 2 seconds:
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
Success rate is 0 percent (0/100)
R2#clear ip ro *
R2#ping 172.16.2.3 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.16.2.3, timeout is 2 seconds:
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
Success rate is 0 percent (0/100)
R2#clear ip arp *
^
% Invalid input detected at '^' marker.
R2#clear ar
R2#clear arp-ca
R2#clear arp-cache
R2#ping 172.16.2.3 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.16.2.3, timeout is 2 seconds:
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
Success rate is 0 percent (0/100)
R2#clear arp-cache
R2#ping 172.16.2.3 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.16.2.3, timeout is 2 seconds:
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
Success rate is 0 percent (0/100)
R2#clear arp-cache
R2#ping 172.16.2.3 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.16.2.3, timeout is 2 seconds:
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
Success rate is 0 percent (0/100)
R2#clear ip arp *
^
% Invalid input detected at '^' marker.
R2#clear ip arp *
^
% Invalid input detected at '^' marker.
R2#clear ip ro *
R2#ping 172.16.2.3 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.16.2.3, timeout is 2 seconds:
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
Success rate is 0 percent (0/100)
R2#clear ip ro *
R2#ping 172.16.2.3 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.16.2.3, timeout is 2 seconds:
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
Success rate is 0 percent (0/100)
R2#clear ip ro *
R2#ping 172.16.2.3 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.16.2.3, timeout is 2 seconds:
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
Success rate is 0 percent (0/100)
after clear all ip routes, fails ping. but I don't know why success routing before clear route…
Configuration with no auto-summary
- R1-3
conf t ! router rip no auto-summary exit ! end
Verification without no auto-summary
Must be end-to-end ping between different major networks.
- PC-1
PC-1> ping 172.16.2.254 172.16.2.254 icmp_seq=1 timeout 172.16.2.254 icmp_seq=2 timeout 84 bytes from 172.16.2.254 icmp_seq=3 ttl=61 time=4.045 ms 84 bytes from 172.16.2.254 icmp_seq=4 ttl=61 time=6.061 ms 84 bytes from 172.16.2.254 icmp_seq=5 ttl=61 time=3.963 ms
- PC-2
PC-2> ping 172.16.2.3 172.16.2.3 icmp_seq=1 timeout 84 bytes from 172.16.2.3 icmp_seq=2 ttl=255 time=2.101 ms 84 bytes from 172.16.2.3 icmp_seq=3 ttl=255 time=1.942 ms 84 bytes from 172.16.2.3 icmp_seq=4 ttl=255 time=2.850 ms 84 bytes from 172.16.2.3 icmp_seq=5 ttl=255 time=2.035 ms
- R1
R1#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks
C 172.16.1.0/24 is directly connected, GigabitEthernet0/0
L 172.16.1.1/32 is directly connected, GigabitEthernet0/0
R 172.16.2.0/24 [120/2] via 192.168.1.2, 00:00:05, GigabitEthernet0/1
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, GigabitEthernet0/1
L 192.168.1.1/32 is directly connected, GigabitEthernet0/1
R 192.168.2.0/24 [120/1] via 192.168.1.2, 00:00:05, GigabitEthernet0/1
- R2
R2#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks
R 172.16.0.0/16 [120/1] via 192.168.2.3, 00:02:11, GigabitEthernet0/1
[120/1] via 192.168.1.1, 00:01:59, GigabitEthernet0/0
R 172.16.1.0/24 [120/1] via 192.168.1.1, 00:00:08, GigabitEthernet0/0
R 172.16.2.0/24 [120/1] via 192.168.2.3, 00:00:18, GigabitEthernet0/1
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, GigabitEthernet0/0
L 192.168.1.2/32 is directly connected, GigabitEthernet0/0
192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.2.0/24 is directly connected, GigabitEthernet0/1
L 192.168.2.2/32 is directly connected, GigabitEthernet0/1
R2#ping 172.16.1.1 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (100/100), round-trip min/avg/max = 2/3/6 ms
R2#ping 172.16.2.3 repeat 100
Type escape sequence to abort.
Sending 100, 100-byte ICMP Echos to 172.16.2.3, timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (100/100), round-trip min/avg/max = 1/3/7 ms
- R3
R3#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks
R 172.16.1.0/24 [120/2] via 192.168.2.2, 00:00:09, GigabitEthernet0/0
C 172.16.2.0/24 is directly connected, GigabitEthernet0/1
L 172.16.2.3/32 is directly connected, GigabitEthernet0/1
R 192.168.1.0/24 [120/1] via 192.168.2.2, 00:00:09, GigabitEthernet0/0
192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.2.0/24 is directly connected, GigabitEthernet0/0
L 192.168.2.3/32 is directly connected, GigabitEthernet0/0
specific route exist in R1-R3. in this case R2 show specific no summarize route below:
R 172.16.1.0/24 [120/1] via 192.168.1.1, 00:00:08, GigabitEthernet0/0 R 172.16.2.0/24 [120/1] via 192.168.2.3, 00:00:18, GigabitEthernet0/1
Routing update control: passive-interface
Topology
Initial Config
- R1
conf t ! hostname R1 ! int gig0/0 ip addr 192.168.0.1 255.255.255.0 no shut exit int gig0/1 ip addr 192.168.1.1 255.255.255.0 no shut exit ! end wr
- R2
conf t ! hostname R2 ! int gig0/0 ip addr 192.168.1.2 255.255.255.0 no shut exit int gig0/1 ip addr 172.16.1.2 255.255.255.0 no shut exit ! end wr
- R3
conf t ! hostname R3 ! int gig0/0 ip addr 172.16.1.3 255.255.255.0 no shut exit int gig0/1 ip addr 172.16.2.3 255.255.255.0 no shut exit ! end wr
- PC-1
ip 192.168.0.254 255.255.255.0 192.168.0.1 save
- PC-2
ip 172.16.2.254 255.255.255.0 172.16.2.3 save
Configuration
- R1
conf t ! router rip network 192.168.0.0 network 192.168.1.0 version 2 exit ! end
- R2
conf t ! router rip network 192.168.1.0 network 172.16.0.0 version 2 exit ! end
- R3
conf t ! router rip network 172.16.0.0 version 2 exit ! end
Verification without passive-interface
- PC-1-R1
- R1-R2
- R3-PC-2
- PC-1
PC-1> ping 172.16.2.254 84 bytes from 172.16.2.254 icmp_seq=1 ttl=61 time=7.279 ms 84 bytes from 172.16.2.254 icmp_seq=2 ttl=61 time=4.042 ms 84 bytes from 172.16.2.254 icmp_seq=3 ttl=61 time=3.536 ms 84 bytes from 172.16.2.254 icmp_seq=4 ttl=61 time=7.543 ms 84 bytes from 172.16.2.254 icmp_seq=5 ttl=61 time=5.171 ms
Configuration: Passive Interface
- R1
conf t ! router rip passive-interface gig0/0 exit ! end
- R3
conf t ! router rip passive-interface gig0/1 exit ! end
Verification wit passive-interface
- PC-1-R1
- R1-R2
- R3-PC-2
- PC-1
PC-1> ping 172.16.2.254 84 bytes from 172.16.2.254 icmp_seq=1 ttl=61 time=5.696 ms 84 bytes from 172.16.2.254 icmp_seq=2 ttl=61 time=4.255 ms 84 bytes from 172.16.2.254 icmp_seq=3 ttl=61 time=6.066 ms 84 bytes from 172.16.2.254 icmp_seq=4 ttl=61 time=4.511 ms 84 bytes from 172.16.2.254 icmp_seq=5 ttl=61 time=6.357 ms
Above shows stopped sending routing update from R1, R3.
still exchange RIP update R1-R2 link.
but routing successful normally.
Change Load balancing count
Topology
Initial Config
- R1
conf t ! hostname R1 ! int gig0/0 ip addr 192.168.0.1 255.255.255.0 no shut exit int gig0/1 ip addr 192.168.13.1 255.255.255.0 no shut exit int gig0/2 ip addr 192.168.14.1 255.255.255.0 no shut exit int gig0/3 ip addr 192.168.15.1 255.255.255.0 no shut exit ! end wr
- R2
conf t ! hostname R2 ! int gig0/0 ip addr 192.168.1.2 255.255.255.0 no shut exit int gig0/1 ip addr 192.168.32.2 255.255.255.0 no shut exit int gig0/2 ip addr 192.168.42.2 255.255.255.0 no shut exit int gig0/3 ip addr 192.168.52.2 255.255.255.0 no shut exit ! end wr
- R3
conf t ! hostname R3 ! int gig0/0 ip addr 192.168.32.3 255.255.255.0 no shut exit int gig0/1 ip addr 192.168.13.3 255.255.255.0 no shut exit ! end wr
- R4
conf t ! hostname R4 ! int gig0/0 ip addr 192.168.42.4 255.255.255.0 no shut exit int gig0/2 ip addr 192.168.14.4 255.255.255.0 no shut exit ! end wr
- R5
conf t ! hostname R5 ! int gig0/0 ip addr 192.168.52.5 255.255.255.0 no shut exit int gig0/3 ip addr 192.168.15.5 255.255.255.0 no shut exit ! end wr
- PC-1
ip 192.168.0.254 255.255.255.0 192.168.0.1 save
- PC-2
ip 192.168.1.254 255.255.255.0 192.168.1.2 save
Verify
- R1
R1#sh ip int bri Interface IP-Address OK? Method Status Protocol GigabitEthernet0/0 192.168.0.1 YES manual up up GigabitEthernet0/1 192.168.13.1 YES manual up up GigabitEthernet0/2 192.168.14.1 YES manual up up GigabitEthernet0/3 192.168.15.1 YES manual up up R1#ping 192.168.13.3 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.13.3, timeout is 2 seconds: .!!!! Success rate is 80 percent (4/5), round-trip min/avg/max = 3/4/5 ms R1#ping 192.168.14.4 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.14.4, timeout is 2 seconds: .!!!! Success rate is 80 percent (4/5), round-trip min/avg/max = 4/5/6 ms R1#ping 192.168.15.5 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.15.5, timeout is 2 seconds: .!!!! Success rate is 80 percent (4/5), round-trip min/avg/max = 4/4/5 ms
- R2
R2#sh ip int bri Interface IP-Address OK? Method Status Protocol GigabitEthernet0/0 192.168.1.2 YES manual up up GigabitEthernet0/1 192.168.32.2 YES manual up up GigabitEthernet0/2 192.168.42.2 YES manual up up GigabitEthernet0/3 192.168.52.2 YES manual up up R2#ping 192.168.1.254 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.1.254, timeout is 2 seconds: .!!!! Success rate is 80 percent (4/5), round-trip min/avg/max = 1/2/4 ms R2#ping 192.168.32.3 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.32.3, timeout is 2 seconds: .!!!! Success rate is 80 percent (4/5), round-trip min/avg/max = 3/5/8 ms R2#ping 192.168.42.4 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.42.4, timeout is 2 seconds: .!!!! Success rate is 80 percent (4/5), round-trip min/avg/max = 2/3/6 ms R2#ping 192.168.52.5 Type escape sequence to abort. Sending 5, 100-byte ICMP Echos to 192.168.52.5, timeout is 2 seconds: .!!!! Success rate is 80 percent (4/5), round-trip min/avg/max = 3/4/5 ms
- R3
R3#sh ip int bri Interface IP-Address OK? Method Status Protocol GigabitEthernet0/0 192.168.32.3 YES manual up up GigabitEthernet0/1 192.168.13.3 YES manual up up GigabitEthernet0/2 unassigned YES NVRAM administratively down down GigabitEthernet0/3 unassigned YES NVRAM administratively down down
- R4
R4#sh ip int bri Interface IP-Address OK? Method Status Protocol GigabitEthernet0/0 192.168.42.4 YES manual up up GigabitEthernet0/1 unassigned YES manual up up GigabitEthernet0/2 192.168.14.4 YES manual up up GigabitEthernet0/3 unassigned YES NVRAM administratively down down
- R5
R5#sh ip int bri Interface IP-Address OK? Method Status Protocol GigabitEthernet0/0 192.168.52.5 YES manual up up GigabitEthernet0/1 unassigned YES manual up up GigabitEthernet0/2 unassigned YES NVRAM administratively down down GigabitEthernet0/3 192.168.15.5 YES manual up up
- PC-1
PC-1> ping 192.168.0.1 84 bytes from 192.168.0.1 icmp_seq=1 ttl=255 time=12.116 ms 84 bytes from 192.168.0.1 icmp_seq=2 ttl=255 time=2.790 ms 84 bytes from 192.168.0.1 icmp_seq=3 ttl=255 time=2.438 ms 84 bytes from 192.168.0.1 icmp_seq=4 ttl=255 time=2.585 ms 84 bytes from 192.168.0.1 icmp_seq=5 ttl=255 time=2.883 ms
- PC-2
PC-2> ping 192.168.1.2 84 bytes from 192.168.1.2 icmp_seq=1 ttl=255 time=4.063 ms 84 bytes from 192.168.1.2 icmp_seq=2 ttl=255 time=2.026 ms 84 bytes from 192.168.1.2 icmp_seq=3 ttl=255 time=2.116 ms 84 bytes from 192.168.1.2 icmp_seq=4 ttl=255 time=2.276 ms 84 bytes from 192.168.1.2 icmp_seq=5 ttl=255 time=2.897 ms
Configuration without maximum-paths
- R1
conf t ! router rip network 192.168.0.0 network 192.168.13.0 network 192.168.14.0 network 192.168.15.0 version 2 exit ! end
- R2
conf t ! router rip network 192.168.1.0 network 192.168.32.0 network 192.168.42.0 network 192.168.52.0 version 2 exit ! end
- R3
conf t ! router rip network 192.168.13.0 network 192.168.32.0 version 2 exit ! end
- R4
conf t ! router rip network 192.168.14.0 network 192.168.42.0 version 2 exit ! end
- R5
conf t ! router rip network 192.168.15.0 network 192.168.52.0 version 2 exit ! end
Verification without maximum-paths
- PC1
PC-1> ping 192.168.1.254 84 bytes from 192.168.1.254 icmp_seq=1 ttl=61 time=22.852 ms 84 bytes from 192.168.1.254 icmp_seq=2 ttl=61 time=4.065 ms 84 bytes from 192.168.1.254 icmp_seq=3 ttl=61 time=9.231 ms 84 bytes from 192.168.1.254 icmp_seq=4 ttl=61 time=3.288 ms 84 bytes from 192.168.1.254 icmp_seq=5 ttl=61 time=10.388 ms
- PC2
PC-2> ping 192.168.0.254 84 bytes from 192.168.0.254 icmp_seq=1 ttl=61 time=5.167 ms 84 bytes from 192.168.0.254 icmp_seq=2 ttl=61 time=5.075 ms 84 bytes from 192.168.0.254 icmp_seq=3 ttl=61 time=7.719 ms 84 bytes from 192.168.0.254 icmp_seq=4 ttl=61 time=5.554 ms 84 bytes from 192.168.0.254 icmp_seq=5 ttl=61 time=7.630 ms
- R1
R1#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
192.168.0.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.0.0/24 is directly connected, GigabitEthernet0/0
L 192.168.0.1/32 is directly connected, GigabitEthernet0/0
R 192.168.1.0/24 [120/2] via 192.168.15.5, 00:00:06, GigabitEthernet0/3
[120/2] via 192.168.14.4, 00:00:13, GigabitEthernet0/2
[120/2] via 192.168.13.3, 00:00:17, GigabitEthernet0/1
192.168.13.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.13.0/24 is directly connected, GigabitEthernet0/1
L 192.168.13.1/32 is directly connected, GigabitEthernet0/1
192.168.14.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.14.0/24 is directly connected, GigabitEthernet0/2
L 192.168.14.1/32 is directly connected, GigabitEthernet0/2
192.168.15.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.15.0/24 is directly connected, GigabitEthernet0/3
L 192.168.15.1/32 is directly connected, GigabitEthernet0/3
R 192.168.32.0/24 [120/1] via 192.168.13.3, 00:00:17, GigabitEthernet0/1
R 192.168.42.0/24 [120/1] via 192.168.14.4, 00:00:13, GigabitEthernet0/2
R 192.168.52.0/24 [120/1] via 192.168.15.5, 00:00:06, GigabitEthernet0/3
R1#sh ip ro rip
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 192.168.1.0/24 [120/2] via 192.168.15.5, 00:00:10, GigabitEthernet0/3
[120/2] via 192.168.14.4, 00:00:17, GigabitEthernet0/2
[120/2] via 192.168.13.3, 00:00:19, GigabitEthernet0/1
R 192.168.32.0/24 [120/1] via 192.168.13.3, 00:00:19, GigabitEthernet0/1
R 192.168.42.0/24 [120/1] via 192.168.14.4, 00:00:17, GigabitEthernet0/2
R 192.168.52.0/24 [120/1] via 192.168.15.5, 00:00:10, GigabitEthernet0/3
- R2
R2#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 192.168.0.0/24 [120/2] via 192.168.52.5, 00:00:13, GigabitEthernet0/3
[120/2] via 192.168.42.4, 00:00:15, GigabitEthernet0/2
[120/2] via 192.168.32.3, 00:00:19, GigabitEthernet0/1
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, GigabitEthernet0/0
L 192.168.1.2/32 is directly connected, GigabitEthernet0/0
R 192.168.13.0/24 [120/1] via 192.168.32.3, 00:00:19, GigabitEthernet0/1
R 192.168.14.0/24 [120/1] via 192.168.42.4, 00:00:15, GigabitEthernet0/2
R 192.168.15.0/24 [120/1] via 192.168.52.5, 00:00:13, GigabitEthernet0/3
192.168.32.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.32.0/24 is directly connected, GigabitEthernet0/1
L 192.168.32.2/32 is directly connected, GigabitEthernet0/1
192.168.42.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.42.0/24 is directly connected, GigabitEthernet0/2
L 192.168.42.2/32 is directly connected, GigabitEthernet0/2
192.168.52.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.52.0/24 is directly connected, GigabitEthernet0/3
L 192.168.52.2/32 is directly connected, GigabitEthernet0/3
R2#sh ip ro rip
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 192.168.0.0/24 [120/2] via 192.168.52.5, 00:00:23, GigabitEthernet0/3
[120/2] via 192.168.42.4, 00:00:27, GigabitEthernet0/2
[120/2] via 192.168.32.3, 00:00:17, GigabitEthernet0/1
R 192.168.13.0/24 [120/1] via 192.168.32.3, 00:00:17, GigabitEthernet0/1
R 192.168.14.0/24 [120/1] via 192.168.42.4, 00:00:27, GigabitEthernet0/2
R 192.168.15.0/24 [120/1] via 192.168.52.5, 00:00:23, GigabitEthernet0/3
- R3
R3#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 192.168.0.0/24 [120/1] via 192.168.13.1, 00:00:29, GigabitEthernet0/1
R 192.168.1.0/24 [120/1] via 192.168.32.2, 00:00:28, GigabitEthernet0/0
192.168.13.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.13.0/24 is directly connected, GigabitEthernet0/1
L 192.168.13.3/32 is directly connected, GigabitEthernet0/1
R 192.168.14.0/24 [120/1] via 192.168.13.1, 00:00:29, GigabitEthernet0/1
R 192.168.15.0/24 [120/1] via 192.168.13.1, 00:00:29, GigabitEthernet0/1
192.168.32.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.32.0/24 is directly connected, GigabitEthernet0/0
L 192.168.32.3/32 is directly connected, GigabitEthernet0/0
R 192.168.42.0/24 [120/1] via 192.168.32.2, 00:00:28, GigabitEthernet0/0
R 192.168.52.0/24 [120/1] via 192.168.32.2, 00:00:28, GigabitEthernet0/0
R3#sh ip ro rip
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 192.168.0.0/24 [120/1] via 192.168.13.1, 00:00:19, GigabitEthernet0/1
R 192.168.1.0/24 [120/1] via 192.168.32.2, 00:00:11, GigabitEthernet0/0
R 192.168.14.0/24 [120/1] via 192.168.13.1, 00:00:19, GigabitEthernet0/1
R 192.168.15.0/24 [120/1] via 192.168.13.1, 00:00:19, GigabitEthernet0/1
R 192.168.42.0/24 [120/1] via 192.168.32.2, 00:00:11, GigabitEthernet0/0
R 192.168.52.0/24 [120/1] via 192.168.32.2, 00:00:11, GigabitEthernet0/0
- R4
R4#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 192.168.0.0/24 [120/1] via 192.168.14.1, 00:00:05, GigabitEthernet0/2
R 192.168.1.0/24 [120/1] via 192.168.42.2, 00:00:04, GigabitEthernet0/0
R 192.168.13.0/24 [120/1] via 192.168.14.1, 00:00:05, GigabitEthernet0/2
192.168.14.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.14.0/24 is directly connected, GigabitEthernet0/2
L 192.168.14.4/32 is directly connected, GigabitEthernet0/2
R 192.168.15.0/24 [120/1] via 192.168.14.1, 00:00:05, GigabitEthernet0/2
R 192.168.32.0/24 [120/1] via 192.168.42.2, 00:00:04, GigabitEthernet0/0
192.168.42.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.42.0/24 is directly connected, GigabitEthernet0/0
L 192.168.42.4/32 is directly connected, GigabitEthernet0/0
R 192.168.52.0/24 [120/1] via 192.168.42.2, 00:00:04, GigabitEthernet0/0
R4#sh ip ro rip
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 192.168.0.0/24 [120/1] via 192.168.14.1, 00:00:13, GigabitEthernet0/2
R 192.168.1.0/24 [120/1] via 192.168.42.2, 00:00:26, GigabitEthernet0/0
R 192.168.13.0/24 [120/1] via 192.168.14.1, 00:00:13, GigabitEthernet0/2
R 192.168.15.0/24 [120/1] via 192.168.14.1, 00:00:13, GigabitEthernet0/2
R 192.168.32.0/24 [120/1] via 192.168.42.2, 00:00:26, GigabitEthernet0/0
R 192.168.52.0/24 [120/1] via 192.168.42.2, 00:00:26, GigabitEthernet0/0
- R5
R5#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 192.168.0.0/24 [120/1] via 192.168.15.1, 00:00:06, GigabitEthernet0/3
R 192.168.1.0/24 [120/1] via 192.168.52.2, 00:00:05, GigabitEthernet0/0
R 192.168.13.0/24 [120/1] via 192.168.15.1, 00:00:06, GigabitEthernet0/3
R 192.168.14.0/24 [120/1] via 192.168.15.1, 00:00:06, GigabitEthernet0/3
192.168.15.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.15.0/24 is directly connected, GigabitEthernet0/3
L 192.168.15.5/32 is directly connected, GigabitEthernet0/3
R 192.168.32.0/24 [120/1] via 192.168.52.2, 00:00:05, GigabitEthernet0/0
R 192.168.42.0/24 [120/1] via 192.168.52.2, 00:00:05, GigabitEthernet0/0
192.168.52.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.52.0/24 is directly connected, GigabitEthernet0/0
L 192.168.52.5/32 is directly connected, GigabitEthernet0/0
R5#sh ip ro rip
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 192.168.0.0/24 [120/1] via 192.168.15.1, 00:00:13, GigabitEthernet0/3
R 192.168.1.0/24 [120/1] via 192.168.52.2, 00:00:14, GigabitEthernet0/0
R 192.168.13.0/24 [120/1] via 192.168.15.1, 00:00:13, GigabitEthernet0/3
R 192.168.14.0/24 [120/1] via 192.168.15.1, 00:00:13, GigabitEthernet0/3
R 192.168.32.0/24 [120/1] via 192.168.52.2, 00:00:14, GigabitEthernet0/0
R 192.168.42.0/24 [120/1] via 192.168.52.2, 00:00:14, GigabitEthernet0/0
display filter
rip or icmp
PC-1> ping 192.168.1.254 -t
PC-3> ping 192.168.1.254 -t
PC-5> ping 192.168.0.254 -t
PC-7> ping 192.168.0.254 -t
PC-8> ping 192.168.0.254 -t
view capture
balanced.
Configuration maximum-paths
- R1
conf t ! router rip maximum-paths 2 exit ! end
- R2
conf t ! router rip maximum-paths 2 exit ! end
Verification maximum-paths
- R1
R1#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
192.168.0.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.0.0/24 is directly connected, GigabitEthernet0/0
L 192.168.0.1/32 is directly connected, GigabitEthernet0/0
R 192.168.1.0/24 [120/2] via 192.168.15.5, 00:00:08, GigabitEthernet0/3
[120/2] via 192.168.14.4, 00:00:15, GigabitEthernet0/2
192.168.13.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.13.0/24 is directly connected, GigabitEthernet0/1
L 192.168.13.1/32 is directly connected, GigabitEthernet0/1
192.168.14.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.14.0/24 is directly connected, GigabitEthernet0/2
L 192.168.14.1/32 is directly connected, GigabitEthernet0/2
192.168.15.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.15.0/24 is directly connected, GigabitEthernet0/3
L 192.168.15.1/32 is directly connected, GigabitEthernet0/3
R 192.168.32.0/24 [120/1] via 192.168.13.3, 00:00:25, GigabitEthernet0/1
R 192.168.42.0/24 [120/1] via 192.168.14.4, 00:00:15, GigabitEthernet0/2
R 192.168.52.0/24 [120/1] via 192.168.15.5, 00:00:08, GigabitEthernet0/3
R1#sh ip ro rip
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 192.168.1.0/24 [120/2] via 192.168.15.5, 00:00:05, GigabitEthernet0/3
[120/2] via 192.168.14.4, 00:00:10, GigabitEthernet0/2
R 192.168.32.0/24 [120/1] via 192.168.13.3, 00:00:28, GigabitEthernet0/1
R 192.168.42.0/24 [120/1] via 192.168.14.4, 00:00:10, GigabitEthernet0/2
R 192.168.52.0/24 [120/1] via 192.168.15.5, 00:00:05, GigabitEthernet0/3
- R2
R2#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 192.168.0.0/24 [120/2] via 192.168.42.4, 00:00:01, GigabitEthernet0/2
[120/2] via 192.168.32.3, 00:00:13, GigabitEthernet0/1
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, GigabitEthernet0/0
L 192.168.1.2/32 is directly connected, GigabitEthernet0/0
R 192.168.13.0/24 [120/1] via 192.168.32.3, 00:00:13, GigabitEthernet0/1
R 192.168.14.0/24 [120/1] via 192.168.42.4, 00:00:01, GigabitEthernet0/2
R 192.168.15.0/24 [120/1] via 192.168.52.5, 00:00:28, GigabitEthernet0/3
192.168.32.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.32.0/24 is directly connected, GigabitEthernet0/1
L 192.168.32.2/32 is directly connected, GigabitEthernet0/1
192.168.42.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.42.0/24 is directly connected, GigabitEthernet0/2
L 192.168.42.2/32 is directly connected, GigabitEthernet0/2
192.168.52.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.52.0/24 is directly connected, GigabitEthernet0/3
L 192.168.52.2/32 is directly connected, GigabitEthernet0/3
R2#sh ip ro rip
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 192.168.0.0/24 [120/2] via 192.168.42.4, 00:00:21, GigabitEthernet0/2
[120/2] via 192.168.32.3, 00:00:17, GigabitEthernet0/1
R 192.168.13.0/24 [120/1] via 192.168.32.3, 00:00:17, GigabitEthernet0/1
R 192.168.14.0/24 [120/1] via 192.168.42.4, 00:00:21, GigabitEthernet0/2
R 192.168.15.0/24 [120/1] via 192.168.52.5, 00:00:25, GigabitEthernet0/3
routing table reduced to 2 path.
change filter
DisplayFilters - The Wireshark Wiki
ip.src == 192.168.0.0/24
reduced 2 paths in Wireshark capture
Connect GNS3 to the Internet
In this case I assume GNS3 2.1.4.
Choose cloud. No appliance necessary.
connect to eth1.
*May 14 23:01:59.647: %DHCP-6-ADDRESS_ASSIGN: Interface GigabitEthernet0/1 assigned DHCP address 192.168.200.139, mask 255.255.255.0, hostname R3
this seems to be used NAT Internet access.
Default route advertisement
Topology
Initial Config
- R1
conf t ! hostname R1 ! int gig0/0 ip addr 192.168.0.1 255.255.255.0 no shut exit int gig0/1 ip addr 192.168.1.1 255.255.255.0 no shut exit ! end wr
- R2
conf t ! hostname R2 ! int gig0/0 ip addr 192.168.1.2 255.255.255.0 no shut exit int gig0/1 ip addr 192.168.2.2 255.255.255.0 no shut exit ! end wr
- R3
conf t ! hostname R3 ! int gig0/0 ip addr 192.168.2.3 255.255.255.0 no shut exit int gig0/1 ip addr dhcp no shut exit ! end wr
- PC-1
ip 192.168.0.254 255.255.255.0 192.168.0.1 save
Configuration without default-information originate
- R1
conf t ! router rip network 192.168.0.0 network 192.168.1.0 version 2 exit ! end
- R2
conf t ! router rip network 192.168.1.0 network 192.168.2.0 version 2 exit ! end
- R3
conf t ! router rip network 192.168.2.0 version 2 exit ! end
Verification without default-information originate
- R1
R1#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
192.168.0.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.0.0/24 is directly connected, GigabitEthernet0/0
L 192.168.0.1/32 is directly connected, GigabitEthernet0/0
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, GigabitEthernet0/1
L 192.168.1.1/32 is directly connected, GigabitEthernet0/1
R 192.168.2.0/24 [120/1] via 192.168.1.2, 00:00:01, GigabitEthernet0/1
- R2
R2#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is not set
R 192.168.0.0/24 [120/1] via 192.168.1.1, 00:00:02, GigabitEthernet0/0
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, GigabitEthernet0/0
L 192.168.1.2/32 is directly connected, GigabitEthernet0/0
192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.2.0/24 is directly connected, GigabitEthernet0/1
L 192.168.2.2/32 is directly connected, GigabitEthernet0/1
- R3
R3#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is 192.168.200.2 to network 0.0.0.0
S* 0.0.0.0/0 [254/0] via 192.168.200.2
R 192.168.0.0/24 [120/2] via 192.168.2.2, 00:00:27, GigabitEthernet0/0
R 192.168.1.0/24 [120/1] via 192.168.2.2, 00:00:27, GigabitEthernet0/0
192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.2.0/24 is directly connected, GigabitEthernet0/0
L 192.168.2.3/32 is directly connected, GigabitEthernet0/0
192.168.200.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.200.0/24 is directly connected, GigabitEthernet0/1
L 192.168.200.139/32 is directly connected, GigabitEthernet0/1
- ping from PC-1 to R3
PC-1> ping 192.168.2.3 84 bytes from 192.168.2.3 icmp_seq=1 ttl=253 time=5.475 ms 84 bytes from 192.168.2.3 icmp_seq=2 ttl=253 time=5.733 ms 84 bytes from 192.168.2.3 icmp_seq=3 ttl=253 time=5.365 ms 84 bytes from 192.168.2.3 icmp_seq=4 ttl=253 time=6.568 ms 84 bytes from 192.168.2.3 icmp_seq=5 ttl=253 time=5.520 ms
- ping from PC-1 to World
PC-1> ping 8.8.8.8 *192.168.0.1 icmp_seq=1 ttl=255 time=2.919 ms (ICMP type:3, code:1, Destination host unreachable) *192.168.0.1 icmp_seq=2 ttl=255 time=2.384 ms (ICMP type:3, code:1, Destination host unreachable) *192.168.0.1 icmp_seq=3 ttl=255 time=2.520 ms (ICMP type:3, code:1, Destination host unreachable) *192.168.0.1 icmp_seq=4 ttl=255 time=3.473 ms (ICMP type:3, code:1, Destination host unreachable) *192.168.0.1 icmp_seq=5 ttl=255 time=4.768 ms (ICMP type:3, code:1, Destination host unreachable)
Configuration default-information originate
Now, time to configure default route advertisement.
- R3
conf t ! router rip default-information originate passive-interface gig0/1 exit ! end
Verification default-information originate
- R1
R1#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is 192.168.1.2 to network 0.0.0.0
R* 0.0.0.0/0 [120/2] via 192.168.1.2, 00:00:03, GigabitEthernet0/1
192.168.0.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.0.0/24 is directly connected, GigabitEthernet0/0
L 192.168.0.1/32 is directly connected, GigabitEthernet0/0
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, GigabitEthernet0/1
L 192.168.1.1/32 is directly connected, GigabitEthernet0/1
R 192.168.2.0/24 [120/1] via 192.168.1.2, 00:00:03, GigabitEthernet0/1
R2#ping 1.1.1.1
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 1.1.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 12/13/16 ms
- R2
R2#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is 192.168.2.3 to network 0.0.0.0
R* 0.0.0.0/0 [120/1] via 192.168.2.3, 00:00:19, GigabitEthernet0/1
R 192.168.0.0/24 [120/1] via 192.168.1.1, 00:00:09, GigabitEthernet0/0
192.168.1.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.1.0/24 is directly connected, GigabitEthernet0/0
L 192.168.1.2/32 is directly connected, GigabitEthernet0/0
192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.2.0/24 is directly connected, GigabitEthernet0/1
L 192.168.2.2/32 is directly connected, GigabitEthernet0/1
R1#ping 8.8.4.4
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 8.8.4.4, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 14/15/17 ms
- R3
R3#sh ip ro
Codes: L - local, C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route, H - NHRP, l - LISP
a - application route
+ - replicated route, % - next hop override, p - overrides from PfR
Gateway of last resort is 192.168.200.2 to network 0.0.0.0
S* 0.0.0.0/0 [254/0] via 192.168.200.2
R 192.168.0.0/24 [120/2] via 192.168.2.2, 00:00:07, GigabitEthernet0/0
R 192.168.1.0/24 [120/1] via 192.168.2.2, 00:00:07, GigabitEthernet0/0
192.168.2.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.2.0/24 is directly connected, GigabitEthernet0/0
L 192.168.2.3/32 is directly connected, GigabitEthernet0/0
192.168.200.0/24 is variably subnetted, 2 subnets, 2 masks
C 192.168.200.0/24 is directly connected, GigabitEthernet0/1
L 192.168.200.139/32 is directly connected, GigabitEthernet0/1
- ping from PC-1 to World
PC-1> ping 8.8.8.8 84 bytes from 8.8.8.8 icmp_seq=1 ttl=125 time=18.759 ms 84 bytes from 8.8.8.8 icmp_seq=2 ttl=125 time=13.421 ms 84 bytes from 8.8.8.8 icmp_seq=3 ttl=125 time=13.838 ms 84 bytes from 8.8.8.8 icmp_seq=4 ttl=125 time=16.313 ms 84 bytes from 8.8.8.8 icmp_seq=5 ttl=125 time=13.905 ms
You know, gateway of last resort is set, and RIP advertised default route in routing table.
Of course, ping to world successful.
References
tech/network/cisco/advanced-rip-config/advanced-rip-config.txt · Last modified: 2018/05/15 08:31 by wnoguchi
