Cisco Simple RIP Lab

HARDWARE REQUIREMENTS :

Four 3600 series routers & serial cables

INTERFACE CONFIGURATION SUMMARY:

R1	E1/0 S0/0 S1/0	101.100.101.1 1.1.1.1 4.1.1.2
R2	E1/0 S0/0 S1/0	101.100.101.2 1.1.1.2 2.1.1.1
R3	E1/0 S0/0 S1/0	101.100.101.3 2.1.1.2 3.1.1.1
R2	E1/0 S0/0 S1/0	101.100.101.4 3.1.1.2 4.1.1.1

ROUTING INFORMATION PROTOCOL (RIP)

R1 Router Configuration

R1#configure terminal

R1(config)#interface ethernet 1/0

R1(config-if)#ip address 101.100.101.1 255.255.255.0

R1(config-if)#no shutdown

R1(config-if)#interface serial 0/0

R1(config-if)#ip address 1.1.1.1 255.0.0.0

R1(config-if)#no shutdown

R1(config-if)#interface serial 0/1

R1(config-if)#ip address 4.1.1.2 255.0.0.0

R1(config-if)#no shutdown

R1(config-if)#clock rate 64000

R1(config)#router rip

R1(config-router)#version 2

R1(config-router)#no auto-summary

R1(config-router)#network 1.0.0.0 (Advertise the network)

R1(config-router)#network 4.0.0.0

R1(config-router)#network 101.100.101.0

NOTE: To remove the protocol use no form of the command

For ex:

R1(config)#no router rip (To disable rip routing process)

R1(config)#interface serial 0

R1(config-if)#no ip address (To remove ip address from interface)

R2 Router Configuration:

R2#configure terminal

R2(config)#interface ethernet 1/0

R2(config-if)#ip address 101.100.101.1 255.255.255.0

R2(config-if)#no shutdown

R2(config-if)#interface serial 0/0

R2(config-if)#ip address 1.1.1.2 255.0.0.0

R2(config-if)#no shutdown

R2(config-if)#interface serial 0/1

R2(config-if)#ip address 2.1.1.1 255.0.0.0

R2(config-if)#no shutdownR1(config-router)#no auto-summary

R2(config-router)#network 1.0.0.0 (Advertise the network)

R2(config-router)#network 2.0.0.0

R2(config-router)#network 101.100.102.0

R3 Router Configuration:

R3#configure terminal

R3(config)#interface ethernet 1/0

R3(config-if)#ip address 101.100.101.3 255.255.255.0

R3(config-if)#no shutdown

R3(config-if)#interface serial 0/0

R3(config-if)#ip address 2.1.1.2 255.0.0.0

R3(config-if)#no shutdown

R3(config-if)#interface serial 0/1

R3(config-if)#ip address 3.1.1.1 255.0.0.0

R3(config-if)#no shutdown

R3(config-if)#clock rate 64000

R3(config)#router rip

R1(config-router)#version 2

R1(config-router)#no auto-summary

R3(config-router)#network 2.0.0.0 (Advertise the network)

R3(config-router)#network 3.0.0.0

R3(config-router)#network 101.100.101.0

R4 Router Configuration:

R4#configure terminal

R4(config)#interface ethernet 1/0

R4(config-if)#ip address 101.100.101.4 255.255.255.0

R4(config-if)#no shutdown

R4(config-if)#interface serial 0/0

R4(config-if)#ip address 3.1.1.2 255.0.0.0

R4(config-if)#no shutdown

R4(config-if)#interface serial 0/1

R4(config-if)#ip address 4.1.1.2 255.0.0.0

R4(config-if)#no shutdown

R4(config-if)#clock rate 64000

R4(config)#router rip

R1(config-router)#version 2

R1(config-router)#no auto-summary

R4(config-router)#network 3.0.0.0 (Advertise the network)

R4(config-router)#network 4.0.0.0

R4(config-router)#network 101.100.101.0

VERIFICATION COMMANDS:

R1#show ip protocols

R1#show ip route

R1#debug ip rip

R1 Routing Table After RIPV2 Configuration:

R1#sh ip route

Codes: 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

Gateway of last resort is not set

C 1.0.0.0/8 is directly connected, Serial0/0

R 2.0.0.0/8 [120/1] via 1.1.1.2, 00:00:12, Serial0/0

R 3.0.0.0/8 [120/1] via 4.1.1.1, 00:00:19, Serial0/1

101.0.0.0/24 is subnetted, 4 subnets

C 101.100.101.0 is directly connected, Ethernet1/0

R 101.100.103.0 [120/2] via 4.1.1.1, 00:00:19, Serial0/1 [120/2] via 1.1.1.2, 00:00:12, Serial0/0

R 101.100.102.0 [120/1] via 1.1.1.2, 00:00:12, Serial0/0

R 101.100.104.0 [120/1] via 4.1.1.1, 00:00:19, Serial0/1

C 4.0.0.0/8 is directly connected, Serial0/1

R2 Routing Table After RIPV2 Configuration:

R2#sh ip route

Codes: 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

Gateway of last resort is not set

C 1.0.0.0/8 is directly connected, Serial0/0

C 2.0.0.0/8 is directly connected, Serial0/1

R 3.0.0.0/8 [120/1] via 2.1.1.2, 00:00:15, Serial0/1

101.0.0.0/24 is subnetted, 4 subnets

R 101.100.101.0 [120/1] via 1.1.1.1, 00:00:22, Serial0/0

R 101.100.103.0 [120/1] via 2.1.1.2, 00:00:15, Serial0/1

C 101.100.102.0 is directly connected, Ethernet1/0

R 101.100.104.0 [120/2] via 2.1.1.2, 00:00:15, Serial0/1 [120/2] via 1.1.1.1, 00:00:22, Serial0/0

R 4.0.0.0/8 [120/1] via 1.1.1.1, 00:00:23, Serial0/0

R3 Routing Table After RIPV2 Configuration:

R3#sh ip route

Codes: 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

Gateway of last resort is not set

R 1.0.0.0/8 [120/1] via 2.1.1.1, 00:00:15, Serial0/0

C 2.0.0.0/8 is directly connected, Serial0/0

C 3.0.0.0/8 is directly connected, Serial0/1

101.0.0.0/24 is subnetted, 4 subnets

R 101.100.101.0 [120/2] via 3.1.1.2, 00:00:11, Serial0/1 [120/2] via 2.1.1.1, 00:00:15, Serial0/0

C 101.100.103.0 is directly connected, Ethernet1/0

R 101.100.102.0 [120/1] via 2.1.1.1, 00:00:15, Serial0/0

R 101.100.104.0 [120/1] via 3.1.1.2, 00:00:11, Serial0/1

R 4.0.0.0/8 [120/1] via 3.1.1.2, 00:00:13, Serial0/1

R4 Routing Table After RIPV2 Configuration:

R4#sh ip route

Codes: 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

Gateway of last resort is not set

R 1.0.0.0/8 [120/1] via 4.1.1.2, 00:00:00, Serial0/1

R 2.0.0.0/8 [120/1] via 3.1.1.1, 00:00:06, Serial0/0

C 3.0.0.0/8 is directly connected, Serial0/0

101.0.0.0/24 is subnetted, 4 subnets

R 101.100.101.0 [120/1] via 4.1.1.2, 00:00:00, Serial0/1

R 101.100.103.0 [120/1] via 3.1.1.1, 00:00:06, Serial0/0

R 101.100.102.0 [120/2] via 4.1.1.2, 00:00:00, Serial0/1

[120/2] via 3.1.1.1, 00:00:06, Serial0/0

C 101.100.104.0 is directly connected, Ethernet1/0

C 4.0.0.0/8 is directly connected, Serial0/1

TROUBLE SHOOTING

Debugging of R1 (debug ip rip)

*Mar 1 04:23:23.018: RIP: sending v2 update to 224.0.0.9 via Ethernet1/0 (101.100.101.1)

*Mar 1 04:23:23.022: RIP: build update entries

*Mar 1 04:23:23.022: 1.0.0.0/8 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:23:23.026: 2.0.0.0/8 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:23:23.026: 3.0.0.0/8 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:23:23.030: 4.0.0.0/8 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:23:23.034: 101.100.102.0/24 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:23:23.034: 101.100.103.0/24 via 0.0.0.0, metric 3, tag 0

*Mar 1 04:23:23.038: 101.100.104.0/24 via 0.0.0.0, metric 2, tag 0

R1#

*Mar 1 04:23:25.742: RIP: sending v2 update to 224.0.0.9 via Serial0/1 (4.1.1.2)

*Mar 1 04:23:25.746: RIP: build update entries

*Mar 1 04:23:25.746: 1.0.0.0/8 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:23:25.750: 2.0.0.0/8 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:23:25.754: 101.100.101.0/24 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:23:25.754: 101.100.102.0/24 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:23:26.274: RIP: sending v2 update to 224.0.0.9 via Serial0/0 (1.1.1.1)

*Mar 1 04:23:26.278: RIP: build update entries

*Mar 1 04:23:26.278: 3.0.0.0/8 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:23:26.282: 4.0.0.0/8 via 0.0.0.0, metric 1, tag 0

R1#

*Mar 1 04:23:26.282: 101.100.101.0/24 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:23:26.286: 101.100.104.0/24 via 0.0.0.0, metric 2, tag 0

R1#

*Mar 1 04:23:31.426: RIP: received v2 update from 4.1.1.1 on Serial0/1

*Mar 1 04:23:31.430: 2.0.0.0/8 via 0.0.0.0 in 2 hops

*Mar 1 04:23:31.434: 3.0.0.0/8 via 0.0.0.0 in 1 hops

*Mar 1 04:23:31.434: 101.100.103.0/24 via 0.0.0.0 in 2 hops

*Mar 1 04:23:31.438: 101.100.104.0/24 via 0.0.0.0 in 1 hops

R1#

*Mar 1 04:23:45.038: RIP: received v2 update from 1.1.1.2 on Serial0/0

*Mar 1 04:23:45.042: 2.0.0.0/8 via 0.0.0.0 in 1 hops

*Mar 1 04:23:45.042: 3.0.0.0/8 via 0.0.0.0 in 2 hops

*Mar 1 04:23:45.046: 101.100.102.0/24 via 0.0.0.0 in 1 hops

*Mar 1 04:23:45.046: 101.100.103.0/24 via 0.0.0.0 in 2 hop

0.0.0.0 is actually a null value. If you look at rfc2453 (rip v2), you will find the following.

The immediate next hop IP address to which packets to the destination specified by this route entry should be forwarded. Specifying a value of 0.0.0.0 in this field indicates that routing should be via the originator of the RIP advertisement. An address specified as a next hop must, per force, be directly reachable on the logical subnet over which the advertisement is made.

This means 0.0.0.0 is actually just a null value and thus the source IP in the RIPv2's IP header is used as the originator of the IP route.

http://www.rfc-editor.org/rfc/rfc2453.txt

Debugging of R2 (debug ip rip)

*Mar 1 04:25:48.570: RIP: sending v2 update to 224.0.0.9 via Serial0/1 (2.1.1.1)

*Mar 1 04:25:48.574: RIP: build update entries

*Mar 1 04:25:48.574: 1.0.0.0/8 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:25:48.574: 4.0.0.0/8 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:25:48.574: 101.100.101.0/24 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:25:48.574: 101.100.102.0/24 via 0.0.0.0, metric 1, tag 0

R2#

*Mar 1 04:25:58.962: RIP: sending v2 update to 224.0.0.9 via Ethernet1/0 (101.100.102.1)

*Mar 1 04:25:58.966: RIP: build update entries

*Mar 1 04:25:58.966: 1.0.0.0/8 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:25:58.970: 2.0.0.0/8 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:25:58.970: 3.0.0.0/8 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:25:58.970: 4.0.0.0/8 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:25:58.974: 101.100.101.0/24 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:25:58.974: 101.100.103.0/24 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:25:58.974: 101.100.104.0/24 via 0.0.0.0, metric 3, tag 0

*Mar 1 04:25:59.802: RIP: sending v2 update to 224.0.0.9 via Serial0/0 (1.1.1.2) R2#

*Mar 1 04:25:59.806: RIP: build update entries

*Mar 1 04:25:59.806: 2.0.0.0/8 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:25:59.806: 3.0.0.0/8 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:25:59.806: 101.100.102.0/24 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:25:59.806: 101.100.103.0/24 via 0.0.0.0, metric 2, tag 0

R2#

*Mar 1 04:26:10.358: RIP: received v2 update from 1.1.1.1 on Serial0/0

*Mar 1 04:26:10.358: 3.0.0.0/8 via 0.0.0.0 in 2 hops

*Mar 1 04:26:10.362: 4.0.0.0/8 via 0.0.0.0 in 1 hops

*Mar 1 04:26:10.362: 101.100.101.0/24 via 0.0.0.0 in 1 hops

*Mar 1 04:26:10.366: 101.100.104.0/24 via 0.0.0.0 in 2 hops

R2#

*Mar 1 04:26:12.014: RIP: received v2 update from 2.1.1.2 on Serial0/1

*Mar 1 04:26:12.014: 3.0.0.0/8 via 0.0.0.0 in 1 hops

*Mar 1 04:26:12.018: 4.0.0.0/8 via 0.0.0.0 in 2 hops

*Mar 1 04:26:12.018: 101.100.103.0/24 via 0.0.0.0 in 1 hops

*Mar 1 04:26:12.022: 101.100.104.0/24 via 0.0.0.0 in 2 hops

Debugging of R3 (debug ip rip)

Mar 1 04:19:09.702: RIP: sending v2 update to 224.0.0.9 via Ethernet1/0 (101.100.103.1)

*Mar 1 04:19:09.706: RIP: build update entries

*Mar 1 04:19:09.706: 1.0.0.0/8 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:19:09.710: 2.0.0.0/8 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:19:09.710: 3.0.0.0/8 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:19:09.714: 4.0.0.0/8 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:19:09.718: 101.100.101.0/24 via 0.0.0.0, metric 3, tag 0

*Mar 1 04:19:09.718: 101.100.102.0/24 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:19:09.722: 101.100.104.0/24 via 0.0.0.0, metric 2, tag 0

R3#

*Mar 1 04:19:14.854: RIP: sending v2 update to 224.0.0.9 via Serial0/0 (2.1.1.2)

*Mar 1 04:19:14.858: RIP: build update entries

*Mar 1 04:19:14.858: 3.0.0.0/8 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:19:14.862: 4.0.0.0/8 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:19:14.866: 101.100.103.0/24 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:19:14.866: 101.100.104.0/24 via 0.0.0.0, metric 2, tag 0

R3#

*Mar 1 04:19:16.914: RIP: sending v2 update to 224.0.0.9 via Serial0/1 (3.1.1.1)

*Mar 1 04:19:16.918: RIP: build update entries

*Mar 1 04:19:16.918: 1.0.0.0/8 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:19:16.918: 2.0.0.0/8 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:19:16.918: 101.100.102.0/24 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:19:16.918: 101.100.103.0/24 via 0.0.0.0, metric 1, tag 0

R3#

*Mar 1 04:19:19.874: RIP: received v2 update from 2.1.1.1 on Serial0/0

*Mar 1 04:19:19.878: 1.0.0.0/8 via 0.0.0.0 in 1 hops

*Mar 1 04:19:19.882: 4.0.0.0/8 via 0.0.0.0 in 2 hops

*Mar 1 04:19:19.882: 101.100.101.0/24 via 0.0.0.0 in 2 hops

*Mar 1 04:19:19.886: 101.100.102.0/24 via 0.0.0.0 in 1 hops

R3#

*Mar 1 04:19:23.038: RIP: received v2 update from 3.1.1.2 on Serial0/1

*Mar 1 04:19:23.038: 1.0.0.0/8 via 0.0.0.0 in 2 hops

*Mar 1 04:19:23.042: 4.0.0.0/8 via 0.0.0.0 in 1 hops

*Mar 1 04:19:23.042: 101.100.101.0/24 via 0.0.0.0 in 2 hops

*Mar 1 04:19:23.046: 101.100.104.0/24 via 0.0.0.0 in 1 hops

Debugging of R4 (debug ip rip)

*Mar 1 04:34:58.354: RIP: sending v2 update to 224.0.0.9 via Serial0/0 (3.1.1.2)

*Mar 1 04:34:58.354: RIP: build update entries

*Mar 1 04:34:58.354: 1.0.0.0/8 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:34:58.358: 4.0.0.0/8 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:34:58.362: 101.100.101.0/24 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:34:58.362: 101.100.104.0/24 via 0.0.0.0, metric 1, tag 0

R4#

*Mar 1 04:35:04.278: RIP: sending v2 update to 224.0.0.9 via Serial0/1 (4.1.1.1)

*Mar 1 04:35:04.282: RIP: build update entries

*Mar 1 04:35:04.282: 2.0.0.0/8 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:35:04.286: 3.0.0.0/8 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:35:04.290: 101.100.103.0/24 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:35:04.290: 101.100.104.0/24 via 0.0.0.0, metric 1, tag 0

R4#

*Mar 1 04:35:06.778: RIP: received v2 update from 3.1.1.1 on Serial0/0

*Mar 1 04:35:06.778: 1.0.0.0/8 via 0.0.0.0 in 2 hops

*Mar 1 04:35:06.782: 2.0.0.0/8 via 0.0.0.0 in 1 hops

*Mar 1 04:35:06.782: 101.100.102.0/24 via 0.0.0.0 in 2 hops

*Mar 1 04:35:06.786: 101.100.103.0/24 via 0.0.0.0 in 1 hops

R4#

*Mar 1 04:35:11.998: RIP: sending v2 update to 224.0.0.9 via Ethernet1/0 (101.100.104.1)

*Mar 1 04:35:12.002: RIP: build update entries

*Mar 1 04:35:12.002: 1.0.0.0/8 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:35:12.006: 2.0.0.0/8 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:35:12.006: 3.0.0.0/8 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:35:12.010: 4.0.0.0/8 via 0.0.0.0, metric 1, tag 0

*Mar 1 04:35:12.014: 101.100.101.0/24 via 0.0.0.0, metric 2, tag 0

*Mar 1 04:35:12.014: 101.100.102.0/24 via 0.0.0.0, metric 3, tag 0

*Mar 1 04:35:12.018: 101.100.103.0/24 via 0.0.0.0, metric 2, tag 0

R4#

*Mar 1 04:35:19.810: RIP: received v2 update from 4.1.1.2 on Serial0/1

*Mar 1 04:35:19.810: 1.0.0.0/8 via 0.0.0.0 in 1 hops

*Mar 1 04:35:19.814: 2.0.0.0/8 via 0.0.0.0 in 2 hops

*Mar 1 04:35:19.814: 101.100.101.0/24 via 0.0.0.0 in 1 hops

*Mar 1 04:35:19.818: 101.100.102.0/24 via 0.0.0.0 in 2 hops

IT Education

Friday, September 9, 2011

Rip Lab

ROUTING INFORMATION PROTOCOL (RIP)

R1 Router Configuration