Configure ripv2 (enabling rip V2)

Step 1: configure IP Address, and use Ping Command to confirm that the direct connection interface can communicate with each other Ping .

Step 2: configure Rip Protocol.

Step 3: R1 Use Ping 172.16.2.1 The result cannot be obtained.

Step 4: Solve the Problem in step 3. The solution is to enable Rip v2 Protocol

R1 (config) # router rip R1 (config-router) # Version 2 R1 (config-router) # exit R2 (config) # router rip R2 (config-router) # Version 2 R2 (config-router) # exit R3 (config) # router rip R3 (config-router) # Version 2 R3 (config-router) # exit

Step 5: ObserveR2Route table

R2 # Show IP Route Codes: C-connected, S-static, I-IGRP, R-rip, M-mobile, B-BGP D-OSPF, ex-VPN 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, E-EGP I-Is, Su-Is summary, L1-is-level-1, L2-is level-2 IA-Is Inter Area, *-candidate default, U-per-user static route O-ODR, p-periodic downloaded static route Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks R 172.16.1.0/24 [120/1] via 172.16.3.1, 00:00:00, serial1/1 R 172.16.2.0/27 [120/1] via 172.16.3.1, 00:00:00, serial1/1 C 172.16.3.0/24 is directly connected, serial1/1 10.0.0.0/8 is variably subnetted, 3 subnets, 2 masks R 10.2.2.0/27 [120/1] via 10.3.3.1, 00:00:00, serial1/0 R 10.1.1.0/24 [120/1] via 10.3.3.1, 00:00:00, serial1/0 C 10.3.3.0/24 is directly connected, serial1/0

Step 6: UseDebugObservationR00002Announcement

R3 # 00: 06: 36: Rip: sending V2 update to 224.0.0.9 via serial1/0 (172.16.3.1) 00: 06: 36: Rip: Build update entries 00: 06: 36: 172.16.1.0/24 Via 0.0.0.0, metric 1, tag 0 00: 06: 36: 172.16.2.0/27 via 0.0.0.0, metric 1, tag 0 00: 06: 36: Rip: sending V2 update to 224.0.0.9 via loopback0 (172.16.1.1) 00: 06: 36: Rip: Build update entries 00: 06: 36: 10.0.0.0/8 via 0.0.0.0, metric 2, tag 0 00: 06: 36: 172.16.2.0/27 via 0.0.0.0, metric 1, tag 0 00: 06: 36: 172.16.3.0/24 Via 0.0.0.0, metric 1, tag 0 00: 06: 36: Rip: sending V2 update to 224.0.0.9 via loopback1 (172.16.2.1) 00: 06: 36: Rip: Build update entries 00: 06: 36: 10.0.0.0/8 via 0.0.0.0, metric 2, tag 0 00: 06: 36: 172.16.1.0/24 Via 0.0.0.0, metric 1, tag 0 00: 06: 36: 172.16.3.0/24 Via 0.0.0.0, metric 1, tag 0 00: 06: 36: Rip: ignored V2 packet from 172.16.1.1 (sourced from one of our addresses) 00: 06: 36: Rip: ignored V2 packet from 172.16.2.1 (sourced from one of our addresses) 00: 06: 37: Rip: sorted ed V2 update from 172.16.3.2 on serial1/0 00: 06: 37: 10.0.0.0/8 via 0.0.0.0 in 1 hops R3 #

Step 7: ObserveR1Route table

R1 # Show IP Route Codes: C-connected, S-static, I-IGRP, R-rip, M-mobile, B-BGP D-OSPF, ex-VPN 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, E-EGP I-Is, Su-Is summary, L1-is-level-1, L2-is level-2 IA-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 172.16.0.0/16 [120/1] via 10.3.3.2, 00:00:06, serial1/1 10.0.0.0/8 is variably subnetted, 3 subnets, 2 masks C 10.2.2.0/27 is directly connected, loopback1 C 10.1.1.0/24 is directly connected, loopback0 C 10.3.3.0/24 is directly connected, serial1/1 R1 #

Step 8:R2Close automatic summary

R2 (config) # router rip R2 (config-router) # No auto-Summary R2 (config-router) # exit

Step 9: goR1View route table

R1 # Show IP Route Codes: C-connected, S-static, I-IGRP, R-rip, M-mobile, B-BGP D-OSPF, ex-VPN 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, E-EGP I-Is, Su-Is summary, L1-is-level-1, L2-is level-2 IA-Is Inter Area, *-candidate default, U-per-user static route O-ODR, p-periodic downloaded static route Gateway of last resort is not set 172.16.0.0/16 is variably subnetted, 3 subnets, 2 masks R 172.16.1.0/24 [120/2] via 10.3.3.2, 00:00:00, serial1/1 R 172.16.2.0/27 [120/2] via 10.3.3.2, 00:00:00, serial1/1 R 172.16.3.0/24 [120/1] via 10.3.3.2, 00:00:00, serial1/1 10.0.0.0/8 is variably subnetted, 3 subnets, 2 masks C 10.2.2.0/27 is directly connected, loopback1 C 10.1.1.0/24 is directly connected, loopback0 C 10.3.3.0/24 is directly connected, serial1/1

Step 10:R2Manual summary on Configuration

R2 (config) # interface serial 1/0 R2 (config-If) # IP Summary-address rip 172.16.0.0 255.255.0.0

Step 11: returnR1View route table

R1 # Show IP Route Codes: C-connected, S-static, I-IGRP, R-rip, M-mobile, B-BGP D-OSPF, ex-VPN 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, E-EGP I-Is, Su-Is summary, L1-is-level-1, L2-is level-2 IA-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 172.16.0.0/16 [120/1] via 10.3.3.2, 00:00:00, serial1/1 10.0.0.0/8 is variably subnetted, 3 subnets, 2 masks C 10.2.2.0/27 is directly connected, loopback1 C 10.1.1.0/24 is directly connected, loopback0 C 10.3.3.0/24 is directly connected, serial1/1 R1 #