内容摘要：在本实验中演示使用RIP协议处理不连续的子网和VLSM的情况。
第3段：配置 passive interface
R1#debug ip rip
RIP protocol debugging is on
R1#
02:59:47: RIP: received v2updatefrom 172.16.123.6 on Serial1
02:59:47: 172.16.123.8/30 via 0.0.0.0 in 1 hops
02:59:47: 172.18.2.0/28 via 0.0.0.0 in 1 hops
02:59:47: 172.18.3.0/24 via 0.0.0.0 in 1 hops
R1#
02:59:51: RIP: sending v2updateto 224.0.0.9 via Ethernet 0(172.18.1.1)
02:59:51: RIP: buildupdateentries
02:59:51: 172.16.123.0/30 via 0.0.0.0, metric 1, tag 0
02:59:51: 172.16.123.4/30 via 0.0.0.0, metric 1, tag 0
02:59:51: 172.16.123.8/30 via 0.0.0,0, metric 2, tag 0
02:59:51: 172.18.2.0/28 via 0.0.0.0, metric 2,tab 0
02:59:51: 172.183.0/24 via0.0.0.0,metric 2,tag 0
02:59:51: RIP: sendiag v2updateto 224.0.:0.9viaSaialC-172.15.t23.1)
02:59:51: RIP: buildupdateentries
02:59:51: 172.16.123.4/30 via 0.0.0.0, metric 1, tag 0
02:59:51: 172.18.1.0/28 via 0.0.0.0, metric 1, tag 0
02:59:51: 172.18.3.0/24 via 0.0.0.0, metric 2, tag 0
R1#
02:59:51: RIP: sending v2updateto 224.0.0.9 via Serial1(172.16.123.5)
02:59:51: RIP: buildupdateentries
02:59:51: 172.16.123.0/30 via 0.0.0.0, metric 1, tag 0
02:59:51: 172.18.1.0/28 via 0.0.0.0, metric 1, tag 0
02:59:51: 172.18.2.0/28 via 0.0.0.0, metric 2, tag 0
R1#u all
All possible debugging has been turned off
责编：豆豆技术应用