使用RIP协议处理不连续的子网和VLSM

　　i - IS-IS, 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

　　172.16.0.0/24 is subnetted, 3 subnets

　　R　172.16.23.0 is directly connected. Serial 1

　　C　172.16.12.0 [120/1] via 172.16.13.1, 00:00:01, Serial0

　　C　172.16.13.0 is directly connected, Serial0

　　172.18.0,0/24 is subnetted, 1 subnets

　　C　172.18.3.0 is directly connected, Ethemet0

　　R3#conft

　　Enter configuration commands, one per line. End with CNTL/Z.

　　R3(config)#router rip

　　R3(config-router)#version 2

　　R3(config-router)#

　　Term_Server>2

　　[Resuming connection 2 to R2 ... ]

　　R2(config-router)#router rip

　　R2(config-router)#version 2

　　R2(config-router)#

　　Term_Server>1

　　[Resuming connection 1 to R1 ...]

　　R1(config-router)#router rip

　　R1(config-router)#version 2

　　R1(config-router)#

　　R1(config-router)#^Z

　　R1#cle lp route *

　　R1#debug ip rip

　　RIP protocol debugging is on

　　R1#

　　01:38:59: RIP: received v2updatefrom 172.16.12.2 on Serial0

　　01:38:59:　172.16.23.0/24 via 0.0.0.0 in 1 hops

　　01:38:59:　172.18.0.0/16 Via 0.0.0.0 in 1 hops

　　01:39:10: RIP: received v2updatefrom 172.16.13.3 on Serial1

　　01:39:10:　172.16.23.0/24 via 0.0.0.0 in 1 hops