EIGRP is Cisco proprietary routing protocol.
Almost labs are GNS3.
R1#sh interfaces gig0/1 GigabitEthernet0/1 is up, line protocol is up Hardware is iGbE, address is 0c22.be57.9101 (bia 0c22.be57.9101) Internet address is 192.168.1.1/24 MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Unknown, Unknown, link type is auto, media type is RJ45 output flow-control is unsupported, input flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:51, output 00:00:05, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4 packets input, 240 bytes, 0 no buffer Received 4 broadcasts (0 IP multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input 10 packets output, 617 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 unknown protocol drops 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier, 0 pause output 0 output buffer failures, 0 output buffers swapped out R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#int gig0/1 R1(config-if)#de R1(config-if)#del R1(config-if)#delay ? <1-16777215> Throughput delay (tens of microseconds) R1(config-if)#delay 12 R1(config-if)#do sh int gig0/1 | i DLY MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 120 usec, R1(config-if)#exit R1(config)#rou R1(config)#router R1(config)#router eig R1(config)#router eigrp ? <1-65535> Autonomous System WORD EIGRP Virtual-Instance Name R1(config)#router eigrp 1 R1(config-router)#metric weights ? <0-8> Type (Only TOS 0 supported) R1(config-router)#metric weights 0 ? <0-255> K1 R1(config-router)#metric weights 0 1 ? <0-255> K2 R1(config-router)#metric weights 0 1 1 ? <0-255> K3 R1(config-router)#metric weights 0 1 1 1 ? <0-255> K4 R1(config-router)#metric weights 0 1 1 1 1 ? <0-255> K5 R1(config-router)#metric weights 0 1 1 1 1 3 ? <cr> R1(config-router)#metric weights 0 1 1 1 1 3 R1(config-router)#do sh ip protocols *** IP Routing is NSF aware *** Routing Protocol is "application" Sending updates every 0 seconds Invalid after 0 seconds, hold down 0, flushed after 0 Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Maximum path: 32 Routing for Networks: Routing Information Sources: Gateway Distance Last Update Distance: (default is 4) Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=1, K3=1, K4=1, K5=3 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 1.1.1.1 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 Automatic Summarization: disabled Maximum path: 4 Routing for Networks: Routing Information Sources: Gateway Distance Last Update Distance: internal 90 external 170 R1(config-router)#
this command only use for metric calculation. link speed is not take effect.
R1>en R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#int s0/0 ^ % Invalid input detected at '^' marker. R1(config)#int s0/1 ^ % Invalid input detected at '^' marker. R1(config)#int s? Serial R1(config)#int s R1(config)#int serial ? <0-0> Serial interface number R1(config)#int serial 0? / R1(config)#int serial 0/? <0-0> Serial interface number R1(config)#int serial 0/0? . / : <0-2> R1(config)#int serial 0/0/? <0-0> Serial interface number R1(config)#int s0/0/0 R1(config-if)#ip addr 192.168.1.1 255.255.255.0 R1(config-if)#no shut R1(config-if)# *Oct 7 02:02:15.171: %LINK-3-UPDOWN: Interface Serial0/0/0, changed state to up *Oct 7 02:02:16.171: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0/0, changed state to up R1(config-if)#do sh int s0/0/0 Serial0/0/0 is up, line protocol is up Hardware is GT96K Serial Internet address is 192.168.1.1/24 MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation HDLC, loopback not set Keepalive set (10 sec) CRC checking enabled Last input 00:00:01, output 00:00:02, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 4 packets input, 696 bytes, 0 no buffer Received 4 broadcasts (0 IP multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 5 packets output, 720 bytes, 0 underruns 0 output errors, 0 collisions, 6 interface resets 0 unknown protocol drops 0 output buffer failures, 0 output buffers swapped out 2 carrier transitions DCD=up DSR=up DTR=up RTS=up CTS=up R1(config-if)#bandwidth ? <1-10000000> Bandwidth in kilobits inherit Specify how bandwidth is inherited qos-reference Reference bandwidth for QOS test receive Specify receive-side bandwidth R1(config-if)#bandwidth 128 R1(config-if)#do sh run % Ambiguous command: "do sh run" R1(config-if)#do sh int s0/0/0 Serial0/0/0 is up, line protocol is up Hardware is GT96K Serial Internet address is 192.168.1.1/24 MTU 1500 bytes, BW 128 Kbit/sec, DLY 20000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation HDLC, loopback not set Keepalive set (10 sec) CRC checking enabled Last input 00:00:00, output 00:00:01, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 8 packets input, 792 bytes, 0 no buffer Received 8 broadcasts (0 IP multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 9 packets output, 816 bytes, 0 underruns 0 output errors, 0 collisions, 6 interface resets 0 unknown protocol drops 0 output buffer failures, 0 output buffers swapped out 2 carrier transitions DCD=up DSR=up DTR=up RTS=up CTS=up R1(config-if)#^Z R1# *Oct 7 02:03:46.539: %SYS-5-CONFIG_I: Configured from console by console
en conf t ! hostname R1 no ip domain-lookup line console 0 exec-timeout 0 0 logging synchronous ! int gig0/0 ip address 192.168.0.1 255.255.255.0 no shut exit int gig0/1 ip address 192.168.1.1 255.255.255.0 no shut exit ! end wr
en conf t ! hostname R2 no ip domain-lookup line console 0 exec-timeout 0 0 logging synchronous ! int gig0/0 ip address 192.168.1.2 255.255.255.0 no shut exit int gig0/1 ip address 192.168.2.2 255.255.255.0 no shut exit ! end wr
en conf t ! hostname R3 no ip domain-lookup line console 0 exec-timeout 0 0 logging synchronous ! int gig0/0 ip address 192.168.2.3 255.255.255.0 no shut exit int gig0/1 ip address 192.168.3.3 255.255.255.0 no shut exit ! end wr
ip 192.168.0.101 255.255.255.0 192.168.0.1 save
ip 192.168.3.102 255.255.255.0 192.168.3.3 save
en conf t ! ! EIGRP Configuration router eigrp 1 network 192.168.0.1 0.0.0.0 network 192.168.1.1 0.0.0.0 exit ! end
en conf t ! ! EIGRP Configuration router eigrp 1 network 192.168.1.2 0.0.0.0 network 192.168.2.2 0.0.0.0 exit ! end
en conf t ! ! EIGRP Configuration router eigrp 1 network 192.168.2.3 0.0.0.0 network 192.168.3.3 0.0.0.0 ! end
R1#sh ip protocols *** IP Routing is NSF aware *** Routing Protocol is "application" Sending updates every 0 seconds Invalid after 0 seconds, hold down 0, flushed after 0 Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Maximum path: 32 Routing for Networks: Routing Information Sources: Gateway Distance Last Update Distance: (default is 4) Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 192.168.1.1 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 Automatic Summarization: disabled Maximum path: 4 Routing for Networks: 192.168.0.1/32 192.168.1.1/32 Routing Information Sources: Gateway Distance Last Update 192.168.1.2 90 00:00:47 Distance: internal 90 external 170 R1#sh ip eig R1#sh ip eigrp nei R1#sh ip eigrp neighbors EIGRP-IPv4 Neighbors for AS(1) H Address Interface Hold Uptime SRTT RTO Q Seq (sec) (ms) Cnt Num 0 192.168.1.2 Gi0/1 10 00:02:10 9 100 0 8 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 D 192.168.2.0/24 [90/3072] via 192.168.1.2, 00:02:19, GigabitEthernet0/1 D 192.168.3.0/24 [90/3328] via 192.168.1.2, 00:01:49, GigabitEthernet0/1 R1#sh ip ro eigrp 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 D 192.168.2.0/24 [90/3072] via 192.168.1.2, 00:03:44, GigabitEthernet0/1 D 192.168.3.0/24 [90/3328] via 192.168.1.2, 00:03:14, GigabitEthernet0/1 R1#sh ip eigrp topology EIGRP-IPv4 Topology Table for AS(1)/ID(192.168.1.1) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P 192.168.3.0/24, 1 successors, FD is 3328 via 192.168.1.2 (3328/3072), GigabitEthernet0/1 P 192.168.2.0/24, 1 successors, FD is 3072 via 192.168.1.2 (3072/2816), GigabitEthernet0/1 P 192.168.0.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/0 P 192.168.1.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/1
R2#sh ip protocols *** IP Routing is NSF aware *** Routing Protocol is "application" Sending updates every 0 seconds Invalid after 0 seconds, hold down 0, flushed after 0 Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Maximum path: 32 Routing for Networks: Routing Information Sources: Gateway Distance Last Update Distance: (default is 4) Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 192.168.2.2 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 Automatic Summarization: disabled Maximum path: 4 Routing for Networks: 192.168.1.2/32 192.168.2.2/32 Routing Information Sources: Gateway Distance Last Update 192.168.1.1 90 00:00:55 192.168.2.3 90 00:00:55 Distance: internal 90 external 170 R2#sh ip eig R2#sh ip eigrp neigh R2#sh ip eigrp neighbors EIGRP-IPv4 Neighbors for AS(1) H Address Interface Hold Uptime SRTT RTO Q Seq (sec) (ms) Cnt Num 1 192.168.2.3 Gi0/1 11 00:01:46 7 100 0 4 0 192.168.1.1 Gi0/0 13 00:02:16 1021 5000 0 4 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 D 192.168.0.0/24 [90/3072] via 192.168.1.1, 00:02:37, 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 D 192.168.3.0/24 [90/3072] via 192.168.2.3, 00:01:55, GigabitEthernet0/1 R2#sh ip eigrp topology EIGRP-IPv4 Topology Table for AS(1)/ID(192.168.2.2) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P 192.168.3.0/24, 1 successors, FD is 3072 via 192.168.2.3 (3072/2816), GigabitEthernet0/1 P 192.168.2.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/1 P 192.168.0.0/24, 1 successors, FD is 3072 via 192.168.1.1 (3072/2816), GigabitEthernet0/0 P 192.168.1.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/0
R3#sh ip protocols *** IP Routing is NSF aware *** Routing Protocol is "application" Sending updates every 0 seconds Invalid after 0 seconds, hold down 0, flushed after 0 Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Maximum path: 32 Routing for Networks: Routing Information Sources: Gateway Distance Last Update Distance: (default is 4) Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 192.168.3.3 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 Automatic Summarization: disabled Maximum path: 4 Routing for Networks: 192.168.2.3/32 192.168.3.3/32 Routing Information Sources: Gateway Distance Last Update 192.168.2.2 90 00:01:29 Distance: internal 90 external 170 R3#sh ip eig R3#sh ip eigrp nei R3#sh ip eigrp neighbors EIGRP-IPv4 Neighbors for AS(1) H Address Interface Hold Uptime SRTT RTO Q Seq (sec) (ms) Cnt Num 0 192.168.2.2 Gi0/0 12 00:01:52 1268 5000 0 7 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 D 192.168.0.0/24 [90/3328] via 192.168.2.2, 00:02:10, GigabitEthernet0/0 D 192.168.1.0/24 [90/3072] via 192.168.2.2, 00:02:10, 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, GigabitEthernet0/0 192.168.3.0/24 is variably subnetted, 2 subnets, 2 masks C 192.168.3.0/24 is directly connected, GigabitEthernet0/1 L 192.168.3.3/32 is directly connected, GigabitEthernet0/1 R3#sh ip eigrp topology EIGRP-IPv4 Topology Table for AS(1)/ID(192.168.3.3) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P 192.168.3.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/1 P 192.168.2.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/0 P 192.168.0.0/24, 1 successors, FD is 3328 via 192.168.2.2 (3328/3072), GigabitEthernet0/0 P 192.168.1.0/24, 1 successors, FD is 3072 via 192.168.2.2 (3072/2816), GigabitEthernet0/0
PC-1> ping 192.168.3.102 84 bytes from 192.168.3.102 icmp_seq=1 ttl=61 time=12.205 ms 84 bytes from 192.168.3.102 icmp_seq=2 ttl=61 time=4.416 ms 84 bytes from 192.168.3.102 icmp_seq=3 ttl=61 time=4.785 ms 84 bytes from 192.168.3.102 icmp_seq=4 ttl=61 time=3.918 ms 84 bytes from 192.168.3.102 icmp_seq=5 ttl=61 time=4.101 ms
D 192.168.3.0/24 [90/3328] via 192.168.1.2, 00:03:14, GigabitEthernet0/1
bandwidth = K1 * 10000/1000 * 256 delay = K3 * 10 / 10 * 3 * 256 metric(Feasible Distance) = (10 + 3) * 256 = 13 * 256 = 3328
R1#sh ip protocols *** IP Routing is NSF aware *** Routing Protocol is "application" Sending updates every 0 seconds Invalid after 0 seconds, hold down 0, flushed after 0 Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Maximum path: 32 Routing for Networks: Routing Information Sources: Gateway Distance Last Update Distance: (default is 4) Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 192.168.1.1 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 Automatic Summarization: disabled Maximum path: 4 Routing for Networks: 192.168.0.1/32 192.168.1.1/32 Routing Information Sources: Gateway Distance Last Update 192.168.1.2 90 02:05:03 Distance: internal 90 external 170
R1#debug ip eigrp EIGRP-IPv4 Route Event debugging is on R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#int gi0/1 R1(config-if)#shut R1(config-if)# *Oct 7 06:27:28.195: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 192.168.1.2 (GigabitEthernet0/1) is down: interface down R1(config-if)# *Oct 7 06:27:30.151: %LINK-5-CHANGED: Interface GigabitEthernet0/1, changed state to administratively down *Oct 7 06:27:31.151: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to down R1(config-if)# R1(config-if)# R1(config-if)# R1(config-if)# R1(config-if)# R1(config-if)# R1(config-if)#no shut R1(config-if)#^Z R1# *Oct 7 06:27:51.006: %LINK-3-UPDOWN: Interface GigabitEthernet0/1, changed state to up *Oct 7 06:27:52.006: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to up R1# *Oct 7 06:27:52.245: %SYS-5-CONFIG_I: Configured from console by console R1# *Oct 7 06:27:55.588: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 192.168.1.2 (GigabitEthernet0/1) is up: new adjacency R1# *Oct 7 06:27:57.608: EIGRP-IPv4(1): Int 192.168.2.0/24 M 3072 - 1000000 20000000 SM 2816 - 2524971008 152 *Oct 7 06:27:57.609: EIGRP-IPv4(1): table(default): route installed for 192.168.2.0/24 (90/3072) origin(192.168.1.2) *Oct 7 06:27:57.609: EIGRP-IPv4(1): Int 192.168.3.0/24 M 3328 - 1000000 30000000 SM 3072 - 754974720 305 *Oct 7 06:27:57.610: EIGRP-IPv4(1): table(default): route installed for 192.168.3.0/24 (90/3328) origin(192.168.1.2) *Oct 7 06:27:57.615: EIGRP-IPv4(1): table(default): 192.168.0.0/24 - do advertise out GigabitEthernet0/1 *Oct 7 06:27:57.616: EIGRP-IPv4(1): table(default): 192.168.1.0/24 - do advertise out GigabitEthernet0/1 R1# *Oct 7 06:27:57.619: EIGRP-IPv4(1): table(default): 192.168.0.0/24 - do advertise out GigabitEthernet0/1 *Oct 7 06:27:57.620: EIGRP-IPv4(1): table(default): 192.168.1.0/24 - do advertise out GigabitEthernet0/1 *Oct 7 06:27:57.628: EIGRP-IPv4(1): table(default): 192.168.2.0/24 - do advertise out GigabitEthernet0/1 *Oct 7 06:27:57.629: EIGRP-IPv4(1): table(default): 192.168.3.0/24 - do advertise out GigabitEthernet0/1 *Oct 7 06:27:57.631: EIGRP-IPv4(1): table(default): 192.168.2.0/24 - do advertise out GigabitEthernet0/1 *Oct 7 06:27:57.632: EIGRP-IPv4(1): table(default): 192.168.3.0/24 - do advertise out GigabitEthernet0/1 *Oct 7 06:27:57.774: EIGRP-IPv4(1): R1#table(default): 192.168.2.0/24 - do advertise out GigabitEthernet0/1 *Oct 7 06:27:57.776: EIGRP-IPv4(1): table(default): 192.168.3.0/24 - do advertise out GigabitEthernet0/1 *Oct 7 06:27:57.787: EIGRP-IPv4(1): Int 192.168.0.0/24 M 72057594037927935 - 1000000 281474976710655 SM 72057594037927935 - 4294901760 4294967295 R1#unde R1#undebug alll ^ % Invalid input detected at '^' marker. R1#undebug all All possible debugging has been turned off R1#
en conf t ! hostname R1 no ip domain-lookup line console 0 exec-timeout 0 0 logging synchronous ! int gig0/0 ip address 172.16.1.1 255.255.255.0 no shut exit int gig0/1 ip address 172.16.2.1 255.255.255.0 no shut int gig0/2 ip address 172.16.3.1 255.255.255.0 no shut int gig0/3 ip address 172.16.4.1 255.255.255.0 no shut exit ! end wr
en conf t ! hostname R2 no ip domain-lookup line console 0 exec-timeout 0 0 logging synchronous ! int gig0/0 ip address 172.16.2.2 255.255.255.0 no shut exit int gig0/1 ip address 172.16.5.2 255.255.255.0 no shut exit ! end wr
en conf t ! hostname R3 no ip domain-lookup line console 0 exec-timeout 0 0 logging synchronous ! int gig0/0 ip address 172.16.3.3 255.255.255.0 no shut exit int gig0/1 ip address 172.16.5.3 255.255.255.0 no shut exit ! end wr
en conf t ! hostname R4 no ip domain-lookup line console 0 exec-timeout 0 0 logging synchronous ! int gig0/0 ip address 172.16.4.4 255.255.255.0 no shut exit int gig0/1 ip address 172.16.5.4 255.255.255.0 no shut exit ! end wr
ip 172.16.1.101 255.255.255.0 172.16.1.1 save
ip 172.16.5.102 255.255.255.0 172.16.5.2 save
en conf t ! ! EIGRP Configuration router eigrp 1 network 172.16.1.1 0.0.0.0 network 172.16.2.1 0.0.0.0 network 172.16.3.1 0.0.0.0 network 172.16.4.1 0.0.0.0 exit ! end
en conf t ! ! EIGRP Configuration router eigrp 1 network 172.16.2.2 0.0.0.0 network 172.16.5.2 0.0.0.0 exit ! end
en conf t ! ! EIGRP Configuration router eigrp 1 network 172.16.3.3 0.0.0.0 network 172.16.5.3 0.0.0.0 ! end
en conf t ! ! EIGRP Configuration router eigrp 1 network 172.16.4.4 0.0.0.0 network 172.16.5.4 0.0.0.0 ! end
R1#sh ip ro eigrp 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, 9 subnets, 2 masks D 172.16.5.0/24 [90/3072] via 172.16.4.4, 00:01:04, GigabitEthernet0/3 [90/3072] via 172.16.3.3, 00:01:04, GigabitEthernet0/2 [90/3072] via 172.16.2.2, 00:01:04, GigabitEthernet0/1
R2#sh ip ro eigrp 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, 7 subnets, 2 masks D 172.16.1.0/24 [90/3072] via 172.16.2.1, 00:01:08, GigabitEthernet0/0 D 172.16.3.0/24 [90/3072] via 172.16.5.3, 00:01:08, GigabitEthernet0/1 [90/3072] via 172.16.2.1, 00:01:08, GigabitEthernet0/0 D 172.16.4.0/24 [90/3072] via 172.16.5.4, 00:01:08, GigabitEthernet0/1 [90/3072] via 172.16.2.1, 00:01:08, GigabitEthernet0/0
R3#sh ip ro eigrp 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, 7 subnets, 2 masks D 172.16.1.0/24 [90/3072] via 172.16.3.1, 00:01:08, GigabitEthernet0/0 D 172.16.2.0/24 [90/3072] via 172.16.5.2, 00:01:12, GigabitEthernet0/1 [90/3072] via 172.16.3.1, 00:01:12, GigabitEthernet0/0 D 172.16.4.0/24 [90/3072] via 172.16.5.4, 00:01:08, GigabitEthernet0/1 [90/3072] via 172.16.3.1, 00:01:08, GigabitEthernet0/0
R4#sh ip ro eigrp 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, 7 subnets, 2 masks D 172.16.1.0/24 [90/3072] via 172.16.4.1, 00:01:09, GigabitEthernet0/0 D 172.16.2.0/24 [90/3072] via 172.16.5.2, 00:01:09, GigabitEthernet0/1 [90/3072] via 172.16.4.1, 00:01:09, GigabitEthernet0/0 D 172.16.3.0/24 [90/3072] via 172.16.5.3, 00:01:09, GigabitEthernet0/1 [90/3072] via 172.16.4.1, 00:01:09, GigabitEthernet0/0
PC-1> ping 172.16.5.102 172.16.5.102 icmp_seq=1 timeout 172.16.5.102 icmp_seq=2 timeout 84 bytes from 172.16.5.102 icmp_seq=3 ttl=62 time=4.698 ms 84 bytes from 172.16.5.102 icmp_seq=4 ttl=62 time=4.281 ms 84 bytes from 172.16.5.102 icmp_seq=5 ttl=62 time=3.606 ms PC-1> ping 172.16.5.102 84 bytes from 172.16.5.102 icmp_seq=1 ttl=62 time=4.323 ms 84 bytes from 172.16.5.102 icmp_seq=2 ttl=62 time=3.804 ms 84 bytes from 172.16.5.102 icmp_seq=3 ttl=62 time=3.803 ms 84 bytes from 172.16.5.102 icmp_seq=4 ttl=62 time=7.646 ms 84 bytes from 172.16.5.102 icmp_seq=5 ttl=62 time=3.538 ms
R1#sh ip protocols | s eigrp Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.16.4.1 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1
R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#router eigrp 1 R1(config-router)#maximu R1(config-router)#maximum-paths ? <1-32> Number of paths R1(config-router)#maximum-paths 2 R1(config-router)#do sh ip ro eigrp 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, 9 subnets, 2 masks D 172.16.5.0/24 [90/3072] via 172.16.3.3, 00:00:33, GigabitEthernet0/2 [90/3072] via 172.16.2.2, 00:00:33, GigabitEthernet0/1 R1(config-router)# R1(config-router)#do sh ip proto | s eigrp Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.16.4.1 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 2 Maximum hopcount 100 Maximum metric variance 1
R1(config-router)#do sh ip ro eigrp 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, 9 subnets, 2 masks D 172.16.5.0/24 [90/3072] via 172.16.4.4, 00:00:06, GigabitEthernet0/3 [90/3072] via 172.16.3.3, 00:00:06, GigabitEthernet0/2 [90/3072] via 172.16.2.2, 00:00:06, GigabitEthernet0/1 R1(config-router)#do sh ip proto | s eigrp Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.16.4.1 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1
R1(config-router)#no maximum-paths 2 R1(config-router)#do sh ip ro eigrp 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, 9 subnets, 2 masks D 172.16.5.0/24 [90/3072] via 172.16.4.4, 00:00:06, GigabitEthernet0/3 [90/3072] via 172.16.3.3, 00:00:06, GigabitEthernet0/2 [90/3072] via 172.16.2.2, 00:00:06, GigabitEthernet0/1 R1(config-router)#do sh ip proto | s eigrp Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.16.4.1 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 R1(config-router)#exit R1(config)#int gig0/3 R1(config-if)#del R1(config-if)#delay 10000 R1(config-if)#do sh int gig0/3 GigabitEthernet0/3 is up, line protocol is up Hardware is iGbE, address is 0ce3.ef42.9c03 (bia 0ce3.ef42.9c03) Internet address is 172.16.4.1/24 MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 100000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Unknown, Unknown, link type is auto, media type is RJ45 output flow-control is unsupported, input flow-control is unsupported ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:02, output 00:00:01, output hang never Last clearing of "show interface" counters never Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 387 packets input, 47968 bytes, 0 no buffer Received 4 broadcasts (0 IP multicasts) 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 watchdog, 0 multicast, 0 pause input R1(config-if)# R1(config-if)#do sh ip eigrp topology EIGRP-IPv4 Topology Table for AS(1)/ID(172.16.4.1) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P 172.16.5.0/24, 2 successors, FD is 3072 via 172.16.2.2 (3072/2816), GigabitEthernet0/1 via 172.16.3.3 (3072/2816), GigabitEthernet0/2 via 172.16.4.4 (2562816/2816), GigabitEthernet0/3 P 172.16.2.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/1 P 172.16.3.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/2 P 172.16.1.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/0 P 172.16.4.0/24, 1 successors, FD is 2562560 via Connected, GigabitEthernet0/3 via 172.16.2.2 (3328/3072), GigabitEthernet0/1 via 172.16.3.3 (3328/3072), GigabitEthernet0/2 R1(config-if)#do sh ip ro eigrp 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, 9 subnets, 2 masks D 172.16.5.0/24 [90/3072] via 172.16.3.3, 00:01:27, GigabitEthernet0/2 [90/3072] via 172.16.2.2, 00:01:27, GigabitEthernet0/1
R1(config-if)#delay 2 R1(config-if)#do sh ip eigrp topology EIGRP-IPv4 Topology Table for AS(1)/ID(172.16.4.1) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P 172.16.5.0/24, 2 successors, FD is 3072 via 172.16.2.2 (3072/2816), GigabitEthernet0/1 via 172.16.3.3 (3072/2816), GigabitEthernet0/2 via 172.16.4.4 (3328/2816), GigabitEthernet0/3 P 172.16.2.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/1 P 172.16.3.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/2 P 172.16.1.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/0 P 172.16.4.0/24, 1 successors, FD is 3072 via Connected, GigabitEthernet0/3 R1(config-if)#exit R1(config)#router eigrp 2 R1(config-router)#varia R1(config-router)#variance ? <1-128> Metric variance multiplier R1(config-router)#do sh ip ro eigrp 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, 9 subnets, 2 masks D 172.16.5.0/24 [90/3072] via 172.16.3.3, 00:01:09, GigabitEthernet0/2 [90/3072] via 172.16.2.2, 00:01:09, GigabitEthernet0/1 R1(config-router)#vari R1(config-router)#variance 2 R1(config-router)#do sh ip ro eigrp 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, 9 subnets, 2 masks D 172.16.5.0/24 [90/3072] via 172.16.3.3, 00:01:27, GigabitEthernet0/2 [90/3072] via 172.16.2.2, 00:01:27, GigabitEthernet0/1
take no effect…
R1(config-router)#do sh ip ro eigrp 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, 9 subnets, 2 masks D 172.16.5.0/24 [90/3072] via 172.16.3.3, 00:01:56, GigabitEthernet0/2 [90/3072] via 172.16.2.2, 00:01:56, GigabitEthernet0/1 R1(config-router)#do sh ip eigrp topology EIGRP-IPv4 Topology Table for AS(1)/ID(172.16.4.1) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P 172.16.5.0/24, 2 successors, FD is 3072 via 172.16.2.2 (3072/2816), GigabitEthernet0/1 via 172.16.3.3 (3072/2816), GigabitEthernet0/2 via 172.16.4.4 (3328/2816), GigabitEthernet0/3 P 172.16.2.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/1 P 172.16.3.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/2 P 172.16.1.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/0 P 172.16.4.0/24, 1 successors, FD is 3072 via Connected, GigabitEthernet0/3 EIGRP-IPv4 Topology Table for AS(2)/ID(172.16.4.1) R1(config-router)#do sh ip ro eigrp 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, 9 subnets, 2 masks D 172.16.5.0/24 [90/3072] via 172.16.3.3, 00:04:14, GigabitEthernet0/2 [90/3072] via 172.16.2.2, 00:04:14, GigabitEthernet0/1 R1(config-router)#do clear ip ro * R1(config-router)#do sh ip ro eigrp 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, 9 subnets, 2 masks D 172.16.5.0/24 [90/3072] via 172.16.3.3, 00:00:06, GigabitEthernet0/2 [90/3072] via 172.16.2.2, 00:00:06, GigabitEthernet0/1 R1(config-router)#do clear ip eigrp pro R1(config-router)#do clear ip eigrp process ^ % Invalid input detected at '^' marker. R1(config-router)#^Z R1# *Oct 7 07:44:59.018: %SYS-5-CONFIG_I: Configured from console by console R1#sh run | s eigrp router eigrp 1 network 172.16.1.1 0.0.0.0 network 172.16.2.1 0.0.0.0 network 172.16.3.1 0.0.0.0 network 172.16.4.1 0.0.0.0 router eigrp 2 variance 2
oh god, my eigrp as number mistake…
R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#no eigr R1(config)#no router eigpr 2 ^ % Invalid input detected at '^' marker. R1(config)#no router eigrp 2 R1(config)#do sh run | sec eigrp router eigrp 1 network 172.16.1.1 0.0.0.0 network 172.16.2.1 0.0.0.0 network 172.16.3.1 0.0.0.0 network 172.16.4.1 0.0.0.0 R1(config)#router eigrp 1 R1(config-router)#vari R1(config-router)#do sh ip ro eigrp 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, 9 subnets, 2 masks D 172.16.5.0/24 [90/3072] via 172.16.3.3, 00:00:20, GigabitEthernet0/2 [90/3072] via 172.16.2.2, 00:00:20, GigabitEthernet0/1 R1(config-router)#do sh ip eigrp topology EIGRP-IPv4 Topology Table for AS(1)/ID(172.16.4.1) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P 172.16.5.0/24, 2 successors, FD is 3072 via 172.16.2.2 (3072/2816), GigabitEthernet0/1 via 172.16.3.3 (3072/2816), GigabitEthernet0/2 via 172.16.4.4 (3328/2816), GigabitEthernet0/3 P 172.16.2.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/1 P 172.16.3.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/2 P 172.16.1.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/0 P 172.16.4.0/24, 1 successors, FD is 3072 via Connected, GigabitEthernet0/3 R1(config-router)#vari R1(config-router)#variance 2 R1(config-router)#do sh ip ro eigrp 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, 9 subnets, 2 masks D 172.16.5.0/24 [90/3328] via 172.16.4.4, 00:00:08, GigabitEthernet0/3 [90/3072] via 172.16.3.3, 00:00:08, GigabitEthernet0/2 [90/3072] via 172.16.2.2, 00:00:08, GigabitEthernet0/1 R1(config-router)#do sh ip eigrp topology EIGRP-IPv4 Topology Table for AS(1)/ID(172.16.4.1) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P 172.16.5.0/24, 3 successors, FD is 3072 via 172.16.2.2 (3072/2816), GigabitEthernet0/1 via 172.16.3.3 (3072/2816), GigabitEthernet0/2 via 172.16.4.4 (3328/2816), GigabitEthernet0/3 P 172.16.2.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/1 P 172.16.3.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/2 P 172.16.1.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/0 P 172.16.4.0/24, 1 successors, FD is 3072 via Connected, GigabitEthernet0/3 R1(config-router)#do sh run | s eigrp router eigrp 1 variance 2 network 172.16.1.1 0.0.0.0 network 172.16.2.1 0.0.0.0 network 172.16.3.1 0.0.0.0 network 172.16.4.1 0.0.0.0 R1(config-router)#do sh ip protocols | s eigrp Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.16.4.1 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 2
configuration, verification ok.
PC-1> ping 172.16.5.102 172.16.5.102 icmp_seq=1 timeout 172.16.5.102 icmp_seq=2 timeout 84 bytes from 172.16.5.102 icmp_seq=3 ttl=62 time=3.684 ms 84 bytes from 172.16.5.102 icmp_seq=4 ttl=62 time=2.741 ms 84 bytes from 172.16.5.102 icmp_seq=5 ttl=62 time=2.741 ms
en conf t ! hostname R1 no ip domain-lookup line console 0 exec-timeout 0 0 logging synchronous ! int gig0/0 ip address 172.16.1.1 255.255.255.0 no shut exit int gig0/1 ip address 172.16.2.1 255.255.255.0 no shut exit ! end wr
en conf t ! hostname R2 no ip domain-lookup line console 0 exec-timeout 0 0 logging synchronous ! int gig0/0 ip address 172.16.2.2 255.255.255.0 no shut exit int gig0/1 ip address 172.17.1.2 255.255.255.0 no shut exit ! end wr
en conf t ! hostname R3 no ip domain-lookup line console 0 exec-timeout 0 0 logging synchronous ! int gig0/0 ip address 172.17.1.3 255.255.255.0 no shut exit int gig0/1 ip address 172.17.2.3 255.255.255.0 no shut exit ! end wr
ip 172.16.1.101 255.255.255.0 172.16.1.1 save
ip 172.17.2.102 255.255.255.0 172.17.2.3 save
en conf t ! ! EIGRP Configuration router eigrp 1 network 172.16.1.1 0.0.0.0 network 172.16.2.1 0.0.0.0 exit ! end
en conf t ! ! EIGRP Configuration router eigrp 1 network 172.16.2.2 0.0.0.0 network 172.17.1.2 0.0.0.0 exit ! end
en conf t ! ! EIGRP Configuration router eigrp 1 network 172.17.1.3 0.0.0.0 network 172.17.2.3 0.0.0.0 ! end
R1#sh ip ro eigrp 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 172.17.0.0/24 is subnetted, 2 subnets D 172.17.1.0 [90/3072] via 172.16.2.2, 00:00:22, GigabitEthernet0/1 D 172.17.2.0 [90/3328] via 172.16.2.2, 00:00:17, GigabitEthernet0/1 R1#sh ip protocols | section eigrp Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.16.2.1 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 R1#sh ip protocols *** IP Routing is NSF aware *** Routing Protocol is "application" Sending updates every 0 seconds Invalid after 0 seconds, hold down 0, flushed after 0 Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Maximum path: 32 Routing for Networks: Routing Information Sources: Gateway Distance Last Update Distance: (default is 4) Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.16.2.1 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 Automatic Summarization: disabled Maximum path: 4 Routing for Networks: 172.16.1.1/32 172.16.2.1/32 Routing Information Sources: Gateway Distance Last Update 172.16.2.2 90 00:04:37 Distance: internal 90 external 170 R1#sh ip pro R1#sh ip protocols | begin eigrp Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.16.2.1 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 Automatic Summarization: disabled Maximum path: 4 Routing for Networks: 172.16.1.1/32 172.16.2.1/32 Routing Information Sources: Gateway Distance Last Update 172.16.2.2 90 00:05:20 Distance: internal 90 external 170 R1#sh run all | section eigrp router eigrp 1 timers active-time 3 timers graceful-restart purge-time 240 metric maximum-hops 100 metric weights 0 1 0 1 0 0 traffic-share balanced variance 1 network 172.16.1.1 0.0.0.0 network 172.16.2.1 0.0.0.0 distance eigrp 90 170 no auto-summary no passive-interface default eigrp log-neighbor-changes eigrp log-neighbor-warnings 10 eigrp event-log-size 500 no shutdown monitor event-trace eigrp perf-events rate-limiting 1
R2#sh ip ro eigrp 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 D 172.16.1.0/24 [90/3072] via 172.16.2.1, 00:00:27, GigabitEthernet0/0 172.17.0.0/16 is variably subnetted, 3 subnets, 2 masks D 172.17.2.0/24 [90/3072] via 172.17.1.3, 00:00:22, GigabitEthernet0/1 R2#sh ip protocols | section eigrp Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.17.1.2 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 R2#sh ip protocols | begin eigrp Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.17.1.2 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 Automatic Summarization: disabled Maximum path: 4 Routing for Networks: 172.16.2.2/32 172.17.1.2/32 Routing Information Sources: Gateway Distance Last Update 172.17.1.3 90 00:04:58 172.16.2.1 90 00:05:03 Distance: internal 90 external 170
R3#sh ip ro eigrp 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 172.16.0.0/24 is subnetted, 2 subnets D 172.16.1.0 [90/3328] via 172.17.1.2, 00:00:22, GigabitEthernet0/0 D 172.16.2.0 [90/3072] via 172.17.1.2, 00:00:22, GigabitEthernet0/0 R3#sh ip protocols | section eigrp Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.17.2.3 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 R3#sh ip protocols | begin eigrp Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.17.2.3 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 Automatic Summarization: disabled Maximum path: 4 Routing for Networks: 172.17.1.3/32 172.17.2.3/32 Routing Information Sources: Gateway Distance Last Update 172.17.1.2 90 00:06:42 Distance: internal 90 external 170
show ip protocols | section eigrp
snipping rest of sections… It this bug?
PC-1> ping 172.17.2.102 84 bytes from 172.17.2.102 icmp_seq=1 ttl=61 time=16.078 ms 84 bytes from 172.17.2.102 icmp_seq=2 ttl=61 time=4.833 ms 84 bytes from 172.17.2.102 icmp_seq=3 ttl=61 time=4.316 ms 84 bytes from 172.17.2.102 icmp_seq=4 ttl=61 time=4.892 ms 84 bytes from 172.17.2.102 icmp_seq=5 ttl=61 time=7.253 ms
no auto-summary
is default.
on R2.
conf t ! router eigrp 1 auto-summary exit ! end
R2#conf t Enter configuration commands, one per line. End with CNTL/Z. R2(config)#router R2(config)#router eigr R2(config)#router eigrp 1 R2(config-router)#auto-sum R2(config-router)#auto-summary R2(config-router)# *Oct 7 09:10:32.567: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 172.17.1.3 (GigabitEthernet0/1) is resync: summary configured *Oct 7 09:10:32.567: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 172.16.2.1 (GigabitEthernet0/0) is resync: summary configured *Oct 7 09:10:32.575: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 172.16.2.1 (GigabitEthernet0/0) is resync: summary up, remove components *Oct 7 09:10:32.577: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 172.17.1.3 (GigabitEthernet0/1) is resync: summary up, remove components
R1# *Oct 7 09:10:33.439: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 172.16.2.2 (GigabitEthernet0/1) is resync: peer graceful-restart
R3# *Oct 7 09:10:33.456: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 172.17.1.2 (GigabitEthernet0/0) is resync: peer graceful-restart
R1#sh ip ro eigrp 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 D 172.17.0.0/16 [90/3072] via 172.16.2.2, 00:02:18, GigabitEthernet0/1 R1#sh ip ro eigrp 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 D 172.17.0.0/16 [90/3072] via 172.16.2.2, 00:02:18, GigabitEthernet0/1 R1#sh ip eigrp topo R1#sh ip eigrp topology EIGRP-IPv4 Topology Table for AS(1)/ID(172.16.2.1) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P 172.16.2.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/1 P 172.17.0.0/16, 1 successors, FD is 3072 via 172.16.2.2 (3072/2816), GigabitEthernet0/1 P 172.16.1.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/0
R2#sh ip protocols | begin eigrp Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.17.1.2 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 Automatic Summarization: enabled 172.17.0.0/16 for Gi0/0 Summarizing 2 components with metric 2816 172.16.0.0/16 for Gi0/1 Summarizing 2 components with metric 2816 Maximum path: 4 Routing for Networks: 172.16.2.2/32 172.17.1.2/32 Routing Information Sources: Gateway Distance Last Update 172.17.1.3 90 00:01:23 172.16.2.1 90 00:01:23 Distance: internal 90 external 170 R2#sh ip ro eigrp 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, 4 subnets, 3 masks D 172.16.0.0/16 is a summary, 00:02:09, Null0 D 172.16.1.0/24 [90/3072] via 172.16.2.1, 00:25:13, GigabitEthernet0/0 172.17.0.0/16 is variably subnetted, 4 subnets, 3 masks D 172.17.0.0/16 is a summary, 00:02:09, Null0 D 172.17.2.0/24 [90/3072] via 172.17.1.3, 00:25:08, GigabitEthernet0/1 R2#sh ip eigrp topology EIGRP-IPv4 Topology Table for AS(1)/ID(172.17.1.2) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P 172.16.2.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/0 P 172.16.0.0/16, 1 successors, FD is 2816 via Summary (2816/0), Null0 P 172.17.2.0/24, 1 successors, FD is 3072 via 172.17.1.3 (3072/2816), GigabitEthernet0/1 P 172.17.0.0/16, 1 successors, FD is 2816 via Summary (2816/0), Null0 P 172.16.1.0/24, 1 successors, FD is 3072 via 172.16.2.1 (3072/2816), GigabitEthernet0/0 P 172.17.1.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/1 R2#sh run all | section eigrp router eigrp 1 timers active-time 3 timers graceful-restart purge-time 240 metric maximum-hops 100 metric weights 0 1 0 1 0 0 traffic-share balanced variance 1 network 172.16.2.2 0.0.0.0 network 172.17.1.2 0.0.0.0 distance eigrp 90 170 auto-summary no passive-interface default eigrp log-neighbor-changes eigrp log-neighbor-warnings 10 eigrp event-log-size 500 no shutdown monitor event-trace eigrp perf-events rate-limiting 1
R3#sh ip ro eigrp 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 D 172.16.0.0/16 [90/3072] via 172.17.1.2, 00:02:23, GigabitEthernet0/0 R3#sh ip eigrp topology EIGRP-IPv4 Topology Table for AS(1)/ID(172.17.2.3) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P 172.16.0.0/16, 1 successors, FD is 3072 via 172.17.1.2 (3072/2816), GigabitEthernet0/0 P 172.17.2.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/1 P 172.17.1.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/0
PC-1> ping 172.17.2.102 172.17.2.102 icmp_seq=1 timeout 172.17.2.102 icmp_seq=2 timeout 84 bytes from 172.17.2.102 icmp_seq=3 ttl=61 time=4.877 ms 84 bytes from 172.17.2.102 icmp_seq=4 ttl=61 time=4.927 ms 84 bytes from 172.17.2.102 icmp_seq=5 ttl=61 time=5.332 ms
en conf t ! hostname R1 no ip domain-lookup line console 0 exec-timeout 0 0 logging synchronous ! int gig0/0 ip address 172.16.1.1 255.255.255.0 no shut exit int gig0/1 ip address 172.16.2.1 255.255.255.0 no shut exit ! end wr
en conf t ! hostname R2 no ip domain-lookup line console 0 exec-timeout 0 0 logging synchronous ! int gig0/0 ip address 172.16.2.2 255.255.255.0 no shut exit int gig0/1 ip address 172.17.1.2 255.255.255.0 no shut exit ! end wr
en conf t ! hostname R3 no ip domain-lookup line console 0 exec-timeout 0 0 logging synchronous ! int gig0/0 ip address 172.17.1.3 255.255.255.0 no shut exit int gig0/1 ip address 172.17.2.3 255.255.255.0 no shut exit ! end wr
ip 172.16.1.101 255.255.255.0 172.16.1.1 save
ip 172.17.2.102 255.255.255.0 172.17.2.3 save
en conf t ! ! EIGRP Configuration router eigrp 1 network 172.16.1.1 0.0.0.0 network 172.16.2.1 0.0.0.0 exit ! end
en conf t ! ! EIGRP Configuration router eigrp 1 network 172.16.2.2 0.0.0.0 network 172.17.1.2 0.0.0.0 exit ! end
en conf t ! ! EIGRP Configuration router eigrp 1 network 172.17.1.3 0.0.0.0 network 172.17.2.3 0.0.0.0 ! end
debug ip eigrp
conf t ! router eigrp 1 passive-interface gig0/0 exit ! end
conf t ! router eigrp 1 passive-interface gig0/1 exit ! end
R1#debug ip eigrp EIGRP-IPv4 Route Event debugging is on R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#! R1(config)#router eigrp 1 R1(config-router)#passi R1(config-router)#passive-interface gig0/0 R1(config-router)#do sh ip protocols *** IP Routing is NSF aware *** Routing Protocol is "application" Sending updates every 0 seconds Invalid after 0 seconds, hold down 0, flushed after 0 Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Maximum path: 32 Routing for Networks: Routing Information Sources: Gateway Distance Last Update Distance: (default is 4) Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.16.2.1 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 Automatic Summarization: disabled Maximum path: 4 Routing for Networks: 172.16.1.1/32 172.16.2.1/32 Passive Interface(s): GigabitEthernet0/0 Routing Information Sources: Gateway Distance Last Update 172.16.2.2 90 00:07:29 Distance: internal 90 external 170
R3#debug ip eigrp EIGRP-IPv4 Route Event debugging is on R3#conf t Enter configuration commands, one per line. End with CNTL/Z. R3(config)#! R3(config)#router eigrp 1 R3(config-router)#passi R3(config-router)#passive-interface gig0/1 R3(config-router)#do sh ip proto R3(config-router)#do sh ip protocol R3(config-router)#do sh ip protocols | begin eigrp Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.17.2.3 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 Automatic Summarization: disabled Maximum path: 4 Routing for Networks: 172.17.1.3/32 172.17.2.3/32 Passive Interface(s): GigabitEthernet0/1 Routing Information Sources: Gateway Distance Last Update 172.17.1.2 90 00:07:48 Distance: internal 90 external 170 R1(config-router)#do sh ip ro eigrp 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 172.17.0.0/24 is subnetted, 2 subnets D 172.17.1.0 [90/3072] via 172.16.2.2, 00:09:27, GigabitEthernet0/1 D 172.17.2.0 [90/3328] via 172.16.2.2, 00:09:27, GigabitEthernet0/1
Let's check packets.
en conf t ! hostname SW1 no ip domain-lookup line console 0 exec-timeout 0 0 logging synchronous ! ip routing ! vlan 10,20,30,40 exit ! int vlan 10 ip address 172.16.10.1 255.255.255.0 no shut exit int vlan 20 ip address 172.16.20.1 255.255.255.0 no shut exit int vlan 30 ip address 172.16.30.1 255.255.255.0 no shut exit int vlan 40 ip address 172.16.40.1 255.255.255.0 no shut exit ! int gig0/0 switchport mode access switchport access vlan 10 exit int gig0/1 switchport mode access switchport access vlan 20 exit int gig0/2 switchport mode access switchport access vlan 30 exit int gig0/3 switchport mode access switchport access vlan 40 exit ! router eigrp 1 network 172.16.10.1 0.0.0.0 network 172.16.20.1 0.0.0.0 network 172.16.30.1 0.0.0.0 network 172.16.40.1 0.0.0.0 exit ! end wr
en conf t ! hostname SW2 no ip domain-lookup line console 0 exec-timeout 0 0 logging synchronous ! ip routing ! vlan 10,50,60,70 exit ! int vlan 10 ip address 172.16.10.2 255.255.255.0 no shut exit int vlan 50 ip address 172.16.50.2 255.255.255.0 no shut exit int vlan 60 ip address 172.16.60.2 255.255.255.0 no shut exit int vlan 70 ip address 172.16.70.2 255.255.255.0 no shut exit ! int gig0/0 switchport mode access switchport access vlan 10 exit int gig0/1 switchport mode access switchport access vlan 50 exit int gig0/2 switchport mode access switchport access vlan 60 exit int gig0/3 switchport mode access switchport access vlan 70 exit ! router eigrp 1 network 172.16.10.2 0.0.0.0 network 172.16.50.2 0.0.0.0 network 172.16.60.2 0.0.0.0 network 172.16.70.2 0.0.0.0 exit ! end wr
ip 172.16.20.101 255.255.255.0 172.16.20.1 save
ip 172.16.30.102 255.255.255.0 172.16.30.1 save
ip 172.16.40.103 255.255.255.0 172.16.40.1 save
ip 172.16.50.104 255.255.255.0 172.16.50.2 save
ip 172.16.60.105 255.255.255.0 172.16.60.2 save
ip 172.16.70.106 255.255.255.0 172.16.70.2 save
SW1#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 Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 11 subnets, 2 masks C 172.16.10.0/24 is directly connected, Vlan10 L 172.16.10.1/32 is directly connected, Vlan10 C 172.16.20.0/24 is directly connected, Vlan20 L 172.16.20.1/32 is directly connected, Vlan20 C 172.16.30.0/24 is directly connected, Vlan30 L 172.16.30.1/32 is directly connected, Vlan30 C 172.16.40.0/24 is directly connected, Vlan40 L 172.16.40.1/32 is directly connected, Vlan40 D 172.16.50.0/24 [90/3072] via 172.16.10.2, 00:00:38, Vlan10 D 172.16.60.0/24 [90/3072] via 172.16.10.2, 00:00:38, Vlan10 D 172.16.70.0/24 [90/3072] via 172.16.10.2, 00:00:38, Vlan10 SW1#sh ip protocols | begin eigrp Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.16.40.1 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 Automatic Summarization: disabled Maximum path: 4 Routing for Networks: 172.16.10.1/32 172.16.20.1/32 172.16.30.1/32 172.16.40.1/32 Routing Information Sources: Gateway Distance Last Update 172.16.10.2 90 00:01:59 Distance: internal 90 external 170
SW2#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 Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 11 subnets, 2 masks C 172.16.10.0/24 is directly connected, Vlan10 L 172.16.10.2/32 is directly connected, Vlan10 D 172.16.20.0/24 [90/3072] via 172.16.10.1, 00:00:42, Vlan10 D 172.16.30.0/24 [90/3072] via 172.16.10.1, 00:00:42, Vlan10 D 172.16.40.0/24 [90/3072] via 172.16.10.1, 00:00:42, Vlan10 C 172.16.50.0/24 is directly connected, Vlan50 L 172.16.50.2/32 is directly connected, Vlan50 C 172.16.60.0/24 is directly connected, Vlan60 L 172.16.60.2/32 is directly connected, Vlan60 C 172.16.70.0/24 is directly connected, Vlan70 L 172.16.70.2/32 is directly connected, Vlan70 SW2#sh ip protocols | begin eigrp Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.16.70.2 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 Automatic Summarization: disabled Maximum path: 4 Routing for Networks: 172.16.10.2/32 172.16.50.2/32 172.16.60.2/32 172.16.70.2/32 Routing Information Sources: Gateway Distance Last Update 172.16.10.1 90 00:02:07 Distance: internal 90 external 170
PC-1> ping 172.16.70.106 84 bytes from 172.16.70.106 icmp_seq=1 ttl=62 time=44.674 ms 84 bytes from 172.16.70.106 icmp_seq=2 ttl=62 time=11.751 ms 84 bytes from 172.16.70.106 icmp_seq=3 ttl=62 time=8.385 ms 84 bytes from 172.16.70.106 icmp_seq=4 ttl=62 time=13.396 ms 84 bytes from 172.16.70.106 icmp_seq=5 ttl=62 time=9.879 ms
debug eigrp packets hello
SW1#debug eigrp packets hello (HELLO) EIGRP Packet debugging is on SW1# *Oct 7 11:48:38.260: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.2 *Oct 7 11:48:38.261: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Oct 7 11:48:38.397: EIGRP: Sending HELLO on Vl20 - paklen 20 *Oct 7 11:48:38.398: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW1# *Oct 7 11:48:39.501: EIGRP: Sending HELLO on Vl30 - paklen 20 *Oct 7 11:48:39.502: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW1# *Oct 7 11:48:41.717: EIGRP: Sending HELLO on Vl40 - paklen 20 *Oct 7 11:48:41.718: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:48:42.494: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:48:42.495: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW1# *Oct 7 11:48:43.096: EIGRP: Sending HELLO on Vl20 - paklen 20 *Oct 7 11:48:43.097: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:48:43.216: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.2 *Oct 7 11:48:43.217: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 SW1# *Oct 7 11:48:44.363: EIGRP: Sending HELLO on Vl30 - paklen 20 *Oct 7 11:48:44.364: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW1# *Oct 7 11:48:46.268: EIGRP: Sending HELLO on Vl40 - paklen 20 *Oct 7 11:48:46.268: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW1#
SW2#debug eigrp packets hello (HELLO) EIGRP Packet debugging is on SW2# *Oct 7 11:48:37.419: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.1 *Oct 7 11:48:37.421: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Oct 7 11:48:38.109: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:48:38.109: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW2# *Oct 7 11:48:39.846: EIGRP: Sending HELLO on Vl50 - paklen 20 *Oct 7 11:48:39.847: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:48:39.940: EIGRP: Sending HELLO on Vl70 - paklen 20 *Oct 7 11:48:39.941: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:48:40.626: EIGRP: Sending HELLO on Vl60 - paklen 20 *Oct 7 11:48:40.626: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW2# *Oct 7 11:48:42.329: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.1 *Oct 7 11:48:42.330: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Oct 7 11:48:42.979: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:48:42.980: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW2# *Oct 7 11:48:44.275: EIGRP: Sending HELLO on Vl50 - paklen 20 *Oct 7 11:48:44.276: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:48:44.557: EIGRP: Sending HELLO on Vl70 - paklen 20 *Oct 7 11:48:44.558: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW2# *Oct 7 11:48:45.480: EIGRP: Sending HELLO on Vl60 - paklen 20 *Oct 7 11:48:45.481: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW2# *Oct 7 11:48:47.334: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.1 *Oct 7 11:48:47.335: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Oct 7 11:48:47.651: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:48:47.652: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW2# *Oct 7 11:48:48.747: EIGRP: Sending HELLO on Vl50 - paklen 20 *Oct 7 11:48:48.748: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:48:49.118: EIGRP: Sending HELLO on Vl70 - paklen 20 *Oct 7 11:48:49.119: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW2# *Oct 7 11:48:50.154: EIGRP: Sending HELLO on Vl60 - paklen 20 *Oct 7 11:48:50.155: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW2# *Oct 7 11:48:52.003: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.1 *Oct 7 11:48:52.004: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Oct 7 11:48:52.300: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:48:52.300: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW2# *Oct 7 11:48:53.220: EIGRP: Sending HELLO on Vl50 - paklen 20 *Oct 7 11:48:53.220: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:48:53.779: EIGRP: Sending HELLO on Vl70 - paklen 20 *Oct 7 11:48:53.780: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW2# *Oct 7 11:48:54.618: EIGRP: Sending HELLO on Vl60 - paklen 20 *Oct 7 11:48:54.619: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW2#
very noisy hello…
conf t ! router eigrp 1 passive-interface default no passive-interface vlan 10 ! end
SW1(config-router)#passive-interface default *Oct 7 11:50:45.503: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.2 *Oct 7 11:50:45.503: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Oct 7 11:50:46.226: EIGRP: Sending HELLO on Vl20 - paklen 20 *Oct 7 11:50:46.226: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:50:46.344: EIGRP: Sending HELLO on Vl30 - paklen 20 *Oct 7 11:50:46.344: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW1(config-router)#no passi SW1(config-router)#no passive-interface *Oct 7 11:50:47.083: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:50:47.084: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:50:47.418: EIGRP: Sending HELLO on Vl40 - paklen 20 *Oct 7 11:50:47.419: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW1(config-router)#no passive-interface vlan *Oct 7 11:50:50.503: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.2 *Oct 7 11:50:50.505: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Oct 7 11:50:50.727: EIGRP: Sending HELLO on Vl30 - paklen 20 *Oct 7 11:50:50.728: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:50:50.820: EIGRP: Sending HELLO on Vl20 - paklen 20 *Oct 7 11:50:50.821: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 1 SW1(config-router)#no passive-interface vlan 10 SW1(config-router)# *Oct 7 11:50:51.803: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:50:51.804: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:50:52.355: EIGRP: Sending HELLO on Vl40 - paklen 20 *Oct 7 11:50:52.356: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW1(config-router)# *Oct 7 11:50:54.777: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.2 *Oct 7 11:50:54.778: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Oct 7 11:50:55.455: EIGRP: Sending HELLO on Vl30 - paklen 20 *Oct 7 11:50:55.456: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:50:55.685: EIGRP: Sending HELLO on Vl20 - paklen 20 *Oct 7 11:50:55.685: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW1(config-router)# *Oct 7 11:50:56.608: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:50:56.608: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:50:56.805: EIGRP: Sending HELLO on Vl40 - paklen 20 *Oct 7 11:50:56.805: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW1(config-router)# *Oct 7 11:50:59.168: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.2 *Oct 7 11:50:59.169: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Oct 7 11:50:59.722: EIGRP: Sending HELLO on Vl30 - paklen 20 *Oct 7 11:50:59.722: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW1(config-router)#passi SW1(config-router)#passive-interface *Oct 7 11:51:00.756: EIGRP: Sending HELLO on Vl20 - paklen 20 *Oct 7 11:51:00.756: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:51:01.391: EIGRP: Sending HELLO on Vl40 - paklen 20 *Oct 7 11:51:01.392: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:51:01.585: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:51:01.586: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW1(config-router)#passive-interface defau SW1(config-router)#passive-interface default SW1(config-router)# *Oct 7 11:51:04.154: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.2 *Oct 7 11:51:04.155: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Oct 7 11:51:04.426: EIGRP: Sending HELLO on Vl30 - paklen 20 *Oct 7 11:51:04.427: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:51:05.102: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:51:05.103: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW1(config-router)# *Oct 7 11:51:05.105: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 172.16.10.2 (Vlan10) is down: interface passive SW1(config-router)#no pass SW1(config-router)#no passive-interface vlan 10 SW1(config-router)# *Oct 7 11:51:32.819: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:51:32.820: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW1(config-router)# *Oct 7 11:51:37.682: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:51:37.683: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:51:38.289: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.2 *Oct 7 11:51:38.290: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 *Oct 7 11:51:38.291: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 172.16.10.2 (Vlan10) is up: new adjacency SW1(config-router)# *Oct 7 11:51:38.296: EIGRP: Sending HELLO on Vl10 - paklen 30 *Oct 7 11:51:38.297: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/1 *Oct 7 11:51:38.314: EIGRP: Received HELLO on Vl10 - paklen 30 nbr 172.16.10.2 *Oct 7 11:51:38.315: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/1 SW1(config-router)# *Oct 7 11:51:43.319: EIGRP: Received HELLO on Vl10 - paklen 30 nbr 172.16.10.2 *Oct 7 11:51:43.320: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Oct 7 11:51:43.471: EIGRP: Sending HELLO on Vl10 - paklen 30 *Oct 7 11:51:43.472: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW1(config-router)# *Oct 7 11:51:47.759: EIGRP: Received HELLO on Vl10 - paklen 30 nbr 172.16.10.2 *Oct 7 11:51:47.760: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Oct 7 11:51:47.909: EIGRP: Sending HELLO on Vl10 - paklen 30 *Oct 7 11:51:47.909: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW1(config-router)# *Oct 7 11:51:52.403: EIGRP: Sending HELLO on Vl10 - paklen 30 *Oct 7 11:51:52.404: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:51:52.560: EIGRP: Received HELLO on Vl10 - paklen 30 nbr 172.16.10.2 *Oct 7 11:51:52.561: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 SW1(config-router)# *Oct 7 11:51:56.942: EIGRP: Received HELLO on Vl10 - paklen 30 nbr 172.16.10.2 *Oct 7 11:51:56.943: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Oct 7 11:51:57.041: EIGRP: Sending HELLO on Vl10 - paklen 30 *Oct 7 11:51:57.042: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0
SW2(config-router)# *Oct 7 11:50:50.450: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:50:50.451: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW2(config-router)# *Oct 7 11:50:51.737: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.1 *Oct 7 11:50:51.737: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 SW2(config-router)# *Oct 7 11:50:53.564: EIGRP: Sending HELLO on Vl70 - paklen 20 *Oct 7 11:50:53.565: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:50:53.880: EIGRP: Sending HELLO on Vl60 - paklen 20 *Oct 7 11:50:53.881: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:50:54.377: EIGRP: Sending HELLO on Vl50 - paklen 20 *Oct 7 11:50:54.377: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW2(config-router)#no passi *Oct 7 11:50:54.748: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:50:54.748: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW2(config-router)#no passive-interface v *Oct 7 11:50:56.596: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.1 *Oct 7 11:50:56.598: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0la SW2(config-router)#no passive-interface vlan 10 SW2(config-router)# *Oct 7 11:50:58.319: EIGRP: Sending HELLO on Vl70 - paklen 20 *Oct 7 11:50:58.320: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:50:58.334: EIGRP: Sending HELLO on Vl60 - paklen 20 *Oct 7 11:50:58.334: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:50:59.178: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:50:59.178: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:50:59.268: EIGRP: Sending HELLO on Vl50 - paklen 20 *Oct 7 11:50:59.269: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW2(config-router)# *Oct 7 11:51:01.593: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.1 *Oct 7 11:51:01.594: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 SW2(config-router)# *Oct 7 11:51:02.879: EIGRP: Sending HELLO on Vl70 - paklen 20 *Oct 7 11:51:02.880: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:51:02.982: EIGRP: Sending HELLO on Vl60 - paklen 20 *Oct 7 11:51:02.982: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:51:03.585: EIGRP: Sending HELLO on Vl50 - paklen 20 *Oct 7 11:51:03.586: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW2(config-router)# *Oct 7 11:51:04.169: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:51:04.169: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:51:05.102: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.1 *Oct 7 11:51:05.104: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Oct 7 11:51:05.105: Interface PEER-TERMINATION received SW2(config-router)# *Oct 7 11:51:05.106: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 172.16.10.1 (Vlan10) is down: Interface PEER-TERMINATION received SW2(config-router)#passi SW2(config-router)#passive-interface d *Oct 7 11:51:07.481: EIGRP: Sending HELLO on Vl60 - paklen 20 *Oct 7 11:51:07.482: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:51:07.763: EIGRP: Sending HELLO on Vl70 - paklen 20 *Oct 7 11:51:07.763: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0ef SW2(config-router)#passive-interface defau SW2(config-router)#passive-interface default SW2(config-router)# *Oct 7 11:51:08.554: EIGRP: Sending HELLO on Vl50 - paklen 20 *Oct 7 11:51:08.555: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:51:09.156: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:51:09.156: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW2(config-router)#no passi SW2(config-router)#no passive-interface vlan 10 SW2(config-router)# *Oct 7 11:51:38.302: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:51:38.302: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:51:38.316: EIGRP: Received HELLO on Vl10 - paklen 30 nbr 172.16.10.1 *Oct 7 11:51:38.318: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 *Oct 7 11:51:38.322: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 172.16.10.1 (Vlan10) is up: new adjacency SW2(config-router)# *Oct 7 11:51:38.329: EIGRP: Sending HELLO on Vl10 - paklen 30 *Oct 7 11:51:38.330: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 1/0 iidbQ un/rely 0/1 SW2(config-router)# *Oct 7 11:51:43.382: EIGRP: Sending HELLO on Vl10 - paklen 30 *Oct 7 11:51:43.382: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:51:43.567: EIGRP: Received HELLO on Vl10 - paklen 30 nbr 172.16.10.1 *Oct 7 11:51:43.568: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 SW2(config-router)# *Oct 7 11:51:47.760: EIGRP: Sending HELLO on Vl10 - paklen 30 *Oct 7 11:51:47.760: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:51:47.947: EIGRP: Received HELLO on Vl10 - paklen 30 nbr 172.16.10.1 *Oct 7 11:51:47.948: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 SW2(config-router)# *Oct 7 11:51:52.470: EIGRP: Received HELLO on Vl10 - paklen 30 nbr 172.16.10.1 *Oct 7 11:51:52.471: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Oct 7 11:51:52.596: EIGRP: Sending HELLO on Vl10 - paklen 30 *Oct 7 11:51:52.597: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW2(config-router)# *Oct 7 11:51:57.010: EIGRP: Sending HELLO on Vl10 - paklen 30 *Oct 7 11:51:57.011: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:51:57.123: EIGRP: Received HELLO on Vl10 - paklen 30 nbr 172.16.10.1 *Oct 7 11:51:57.123: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 SW2(config-router)# *Oct 7 11:52:01.486: EIGRP: Sending HELLO on Vl10 - paklen 30 *Oct 7 11:52:01.487: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:52:01.540: EIGRP: Received HELLO on Vl10 - paklen 30 nbr 172.16.10.1 *Oct 7 11:52:01.541: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 SW2(config-router)# *Oct 7 11:52:06.099: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:52:06.100: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 *Oct 7 11:52:06.195: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.1 *Oct 7 11:52:06.196: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 SW2(config-router)# *Oct 7 11:52:11.033: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.1 *Oct 7 11:52:11.034: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 *Oct 7 11:52:11.072: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:52:11.072: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0
SW1(config-router)#do u all All possible debugging has been turned off SW1(config-router)# *Oct 7 11:53:44.462: EIGRP: Sending HELLO on Vl10 - paklen 20 *Oct 7 11:53:44.462: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 SW1(config-router)#^Z SW1# *Oct 7 11:53:58.015: %SYS-5-CONFIG_I: Configured from console by console SW1#
SW2(config-router)#do u all All possible debugging has been turned off SW2(config-router)# *Oct 7 11:53:49.061: EIGRP: Received HELLO on Vl10 - paklen 20 nbr 172.16.10.1 *Oct 7 11:53:49.061: AS 1, Flags 0x0:(NULL), Seq 0/0 interfaceQ 0/0 iidbQ un/rely 0/0 peerQ un/rely 0/0 SW2(config-router)#^Z SW2# *Oct 7 11:53:59.577: %SYS-5-CONFIG_I: Configured from console by console SW2#
SW1#sh ip protocols | b eigrp Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.16.40.1 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 Automatic Summarization: disabled Maximum path: 4 Routing for Networks: 172.16.10.1/32 172.16.20.1/32 172.16.30.1/32 172.16.40.1/32 Passive Interface(s): Vlan20 Vlan30 Vlan40 Routing Information Sources: Gateway Distance Last Update 172.16.10.2 90 00:03:53 Distance: internal 90 external 170 SW1#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 Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 11 subnets, 2 masks C 172.16.10.0/24 is directly connected, Vlan10 L 172.16.10.1/32 is directly connected, Vlan10 C 172.16.20.0/24 is directly connected, Vlan20 L 172.16.20.1/32 is directly connected, Vlan20 C 172.16.30.0/24 is directly connected, Vlan30 L 172.16.30.1/32 is directly connected, Vlan30 C 172.16.40.0/24 is directly connected, Vlan40 L 172.16.40.1/32 is directly connected, Vlan40 D 172.16.50.0/24 [90/3072] via 172.16.10.2, 00:05:48, Vlan10 D 172.16.60.0/24 [90/3072] via 172.16.10.2, 00:05:48, Vlan10 D 172.16.70.0/24 [90/3072] via 172.16.10.2, 00:05:48, Vlan10
SW2#sh ip protocols | b eigrp Routing Protocol is "eigrp 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Default networks flagged in outgoing updates Default networks accepted from incoming updates EIGRP-IPv4 Protocol for AS(1) Metric weight K1=1, K2=0, K3=1, K4=0, K5=0 Soft SIA disabled NSF-aware route hold timer is 240 Router-ID: 172.16.70.2 Topology : 0 (base) Active Timer: 3 min Distance: internal 90 external 170 Maximum path: 4 Maximum hopcount 100 Maximum metric variance 1 Automatic Summarization: disabled Maximum path: 4 Routing for Networks: 172.16.10.2/32 172.16.50.2/32 172.16.60.2/32 172.16.70.2/32 Passive Interface(s): Vlan50 Vlan60 Vlan70 Routing Information Sources: Gateway Distance Last Update 172.16.10.1 90 00:04:04 Distance: internal 90 external 170 SW2#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 Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 11 subnets, 2 masks C 172.16.10.0/24 is directly connected, Vlan10 L 172.16.10.2/32 is directly connected, Vlan10 D 172.16.20.0/24 [90/3072] via 172.16.10.1, 00:05:51, Vlan10 D 172.16.30.0/24 [90/3072] via 172.16.10.1, 00:05:51, Vlan10 D 172.16.40.0/24 [90/3072] via 172.16.10.1, 00:05:51, Vlan10 C 172.16.50.0/24 is directly connected, Vlan50 L 172.16.50.2/32 is directly connected, Vlan50 C 172.16.60.0/24 is directly connected, Vlan60 L 172.16.60.2/32 is directly connected, Vlan60 C 172.16.70.0/24 is directly connected, Vlan70 L 172.16.70.2/32 is directly connected, Vlan70
PC-1> ping 172.16.70.106 172.16.70.106 icmp_seq=1 timeout 172.16.70.106 icmp_seq=2 timeout 172.16.70.106 icmp_seq=3 timeout 172.16.70.106 icmp_seq=4 timeout 172.16.70.106 icmp_seq=5 timeout PC-1> ping 172.16.70.2 84 bytes from 172.16.70.2 icmp_seq=1 ttl=254 time=16.046 ms 84 bytes from 172.16.70.2 icmp_seq=2 ttl=254 time=16.329 ms ^C
ping failing to PC-6. But ping to SW2 Vlan70 SVI address successful.
Reloading PC-6, ping successful.
This behavior may be a mixed bug caused by GNS3 environment, IOSvL2, and VPC.
PC-1> ping 172.16.70.106 84 bytes from 172.16.70.106 icmp_seq=1 ttl=62 time=13.932 ms 172.16.70.106 icmp_seq=2 timeout 172.16.70.106 icmp_seq=3 timeout 84 bytes from 172.16.70.106 icmp_seq=4 ttl=62 time=20.193 ms 84 bytes from 172.16.70.106 icmp_seq=5 ttl=62 time=15.717 ms PC-1> ping 172.16.70.106 84 bytes from 172.16.70.106 icmp_seq=1 ttl=62 time=15.988 ms 84 bytes from 172.16.70.106 icmp_seq=2 ttl=62 time=8.190 ms 84 bytes from 172.16.70.106 icmp_seq=3 ttl=62 time=11.418 ms 84 bytes from 172.16.70.106 icmp_seq=4 ttl=62 time=15.598 ms 84 bytes from 172.16.70.106 icmp_seq=5 ttl=62 time=5.921 ms
Verified passive-interface default
configuration.
How Does the Passive Interface Feature Work in EIGRP? - Cisco
I can't understand this command needs situation…
en conf t ! hostname R1 no ip domain-lookup line console 0 exec-timeout 0 0 logging synchronous ! int gig0/0 ip address 172.16.1.1 255.255.255.0 no shut exit int gig0/1 ip address 172.16.2.1 255.255.255.0 no shut exit ! end wr
en conf t ! hostname R2 no ip domain-lookup line console 0 exec-timeout 0 0 logging synchronous ! int gig0/0 ip address 172.16.2.2 255.255.255.0 no shut exit int gig0/1 ip address 172.17.1.2 255.255.255.0 no shut exit ! end wr
en conf t ! hostname R3 no ip domain-lookup line console 0 exec-timeout 0 0 logging synchronous ! int gig0/0 ip address 172.17.1.3 255.255.255.0 no shut exit int gig0/1 ip address 172.17.2.3 255.255.255.0 no shut exit ! end wr
ip 172.16.1.101 255.255.255.0 172.16.1.1 save
ip 172.17.2.102 255.255.255.0 172.17.2.3 save
en conf t ! ! EIGRP Configuration router eigrp 1 network 172.16.1.1 0.0.0.0 network 172.16.2.1 0.0.0.0 exit ! end
en conf t ! ! EIGRP Configuration router eigrp 1 network 172.16.2.2 0.0.0.0 network 172.17.1.2 0.0.0.0 exit ! end
en conf t ! ! EIGRP Configuration router eigrp 1 network 172.17.1.3 0.0.0.0 network 172.17.2.3 0.0.0.0 ! end
debug ip eigrp
conf t ! access-list 1 deny any ! router eigrp 1 distribute-list 1 out gig0/1 exit ! end
R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#router eigrp 1 R1(config-router)#exit R1(config)#acce R1(config)#access-list 1 den R1(config)#access-list 1 deny any R1(config)#access-list 1 deny any any R1(config)#access-list 1 deny any any Translating "any" ^ % Invalid input detected at '^' marker. R1(config)#access-list 1 deny any ? log Log matches against this entry <cr> R1(config)#access-list 1 deny ? Hostname or A.B.C.D Address to match any Any source host host A single host address R1(config)#access-list 1 deny an R1(config)#access-list 1 deny any R1(config)#router R1(config)#router eigrp 1 R1(config-router)#distri R1(config-router)#distribute-list 1 o R1(config-router)#distribute-list 1 out gig0/1 R1(config-router)# *Oct 7 11:09:43.207: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 172.16.2.2 (GigabitEthernet0/1) is resync: intf route configuration changed
R2# *Oct 7 11:09:43.332: %DUAL-5-NBRCHANGE: EIGRP-IPv4 1: Neighbor 172.16.2.1 (GigabitEthernet0/0) is resync: peer graceful-restart R2#
R1(config-router)#^Z R1#sh *Oct 7 11:10:27.035: %SYS-5-CONFIG_I: Configured from console by console R1#sh run | s eigrp router eigrp 1 distribute-list 1 out GigabitEthernet0/1 network 172.16.1.1 0.0.0.0 network 172.16.2.1 0.0.0.0 R1#sh run | i access-list 1 access-list 1 deny any
EIGRP-IPv4 Neighbors for AS(1) H Address Interface Hold Uptime SRTT RTO Q Seq (sec) (ms) Cnt Num 0 172.16.2.2 Gi0/1 10 00:20:27 190 1140 0 9 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, 4 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 C 172.16.2.0/24 is directly connected, GigabitEthernet0/1 L 172.16.2.1/32 is directly connected, GigabitEthernet0/1 172.17.0.0/24 is subnetted, 2 subnets D 172.17.1.0 [90/3072] via 172.16.2.2, 00:21:01, GigabitEthernet0/1 D 172.17.2.0 [90/3328] via 172.16.2.2, 00:20:57, GigabitEthernet0/1 R1#sh ip eigrp topology EIGRP-IPv4 Topology Table for AS(1)/ID(172.16.2.1) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P 172.16.2.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/1 P 172.17.2.0/24, 1 successors, FD is 3328 via 172.16.2.2 (3328/3072), GigabitEthernet0/1 P 172.16.1.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/0 P 172.17.1.0/24, 1 successors, FD is 3072 via 172.16.2.2 (3072/2816), GigabitEthernet0/1
R2#sh ip eigrp neighbors EIGRP-IPv4 Neighbors for AS(1) H Address Interface Hold Uptime SRTT RTO Q Seq (sec) (ms) Cnt Num 1 172.16.2.1 Gi0/0 14 00:20:34 409 2454 0 6 0 172.17.1.3 Gi0/1 10 00:20:34 171 1026 0 5 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, 2 subnets, 2 masks C 172.16.2.0/24 is directly connected, GigabitEthernet0/0 L 172.16.2.2/32 is directly connected, GigabitEthernet0/0 172.17.0.0/16 is variably subnetted, 3 subnets, 2 masks C 172.17.1.0/24 is directly connected, GigabitEthernet0/1 L 172.17.1.2/32 is directly connected, GigabitEthernet0/1 D 172.17.2.0/24 [90/3072] via 172.17.1.3, 00:21:04, GigabitEthernet0/1 R2#sh ip eigrp topology EIGRP-IPv4 Topology Table for AS(1)/ID(172.17.1.2) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P 172.16.2.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/0 P 172.17.2.0/24, 1 successors, FD is 3072 via 172.17.1.3 (3072/2816), GigabitEthernet0/1 P 172.17.1.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/1
R3#sh ip *Oct 7 11:12:09.528: %SYS-5-CONFIG_I: Configured from console by console R3#sh ip eigr R3#sh ip eigrp nei R3#sh ip eigrp neighbors EIGRP-IPv4 Neighbors for AS(1) H Address Interface Hold Uptime SRTT RTO Q Seq (sec) (ms) Cnt Num 0 172.17.1.2 Gi0/0 12 00:20:40 174 1044 0 8 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 172.16.0.0/24 is subnetted, 1 subnets D 172.16.2.0 [90/3072] via 172.17.1.2, 00:21:08, GigabitEthernet0/0 172.17.0.0/16 is variably subnetted, 4 subnets, 2 masks C 172.17.1.0/24 is directly connected, GigabitEthernet0/0 L 172.17.1.3/32 is directly connected, GigabitEthernet0/0 C 172.17.2.0/24 is directly connected, GigabitEthernet0/1 L 172.17.2.3/32 is directly connected, GigabitEthernet0/1 R3#sh ip eigrp topology EIGRP-IPv4 Topology Table for AS(1)/ID(172.17.2.3) Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply, r - reply Status, s - sia Status P 172.16.2.0/24, 1 successors, FD is 3072 via 172.17.1.2 (3072/2816), GigabitEthernet0/0 P 172.17.2.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/1 P 172.17.1.0/24, 1 successors, FD is 2816 via Connected, GigabitEthernet0/0
sure, ping failed, because R2, R3 don't know the route to 172.16.1.0/24.
PC-1> ping 172.17.2.102 172.17.2.102 icmp_seq=1 timeout 172.17.2.102 icmp_seq=2 timeout 172.17.2.102 icmp_seq=3 timeout 172.17.2.102 icmp_seq=4 timeout 172.17.2.102 icmp_seq=5 timeout