Term_Server> 1

[Resuming connection 1 to R1 ... ]

R1#conft

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

R1(config)#router rip

R1(config-router)#ver 2

R1 (config-router)#no auto-summary

R1(config-rotuer)#end

R1#

R1#sh ip prot

Routing Protocol is "rip"

Sending updates every 30 seconds, next due in 5 seconds

Invalid after 180 seconds, hold down 180, flushed after 240

Outgoingupdatefilter list for all interfaces is

Incomingupdatefilter list for all interfaces is

Redistributing: rip

Default version control: send version 2, receive version 2

Interface Send Recv Triigered RIP Key-chain

Ethemet0 2 2

Serial0 2 2

Serial1 2 2

Automatic network summarization is not in effect

Routing for Networks:

172.16.0.0

172.18.0.0

Routing Information Sources:

Gateway DistanceLast Update

172.16.123.6 120 00:00:06

172.16.123.2 120 00:00:04

Distance: (default is 120)

R1#sh ip route rip

172.16.0.0/30 is subnetted, 3 subnets

R 172.16.123.8 [120/1] via 172.16.123.2, 00:00:06, Serial0

[120/1] via 172.16.123.6, 00:00:22, Serial1

172.18.0.0/16 is variably subnetted, 3 subnets, 2 masks

R 172.18,2,0/28 [120/1] via 172.16.123.2,00:00:06,SerialO

R 172.18J.O/24 [120/1] via 172.16.123.6, 00:00:22, Serial1

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

R1#conft

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

R1(config)#router rip

R1(config-router)passive-interface ?

Ethernet IEEE 802.3

Null Null interface

SerialSerial

defaultSuppres s routing updates. on all interfaces

R1 (config-router)passive-interface e0

R1(config-router)#passive-interface s0

R1(config-router#^Z

R1#debugiprip

RIP protocol debugging is on

R1#

03:00:54: RIP: received v2updatefrom 172.16.123.2 on Serial0

03:00:54: 172.16.123.8/30 via 0.0.0.0 in 1 hops

03:00:54: 172.18.2.0/28 via 0.0.0.0 in 1 hops

03:00:54: 172.18.3.0/24 via 0.0.0.0 in 2 hops

R1#

3:00:56:RIP:sending v2 flashupdateto 224.0.0.9 via Serial1(172.16.123.5)

03:00:56: RIP: build flashupdateentries

03:00:56: 172.18.2.0/28 via 0.0.0.0, metric 2, tag 0

R1#

03:01:12:RIP:received v2updatefrom 172.16.123.6 on Serial1

03:01:12: 172.16.123.8/30 via0.0.0.0 in 1 hops

03:01:12: 172.18.2.0/28 via 0.0.0.0 in 2 hops

03:01:12: 172.18.3.0/24 via 0.0.0.0 in 1 hops

R1#

03:01:17:RIP:sending v2 flashupdateto 224.0.0.9 via Serial1(172.16.123.5)

03:01:17: RIP: buildupdateentries

03:01:17: 172.16.123.0/30 via 0.0.0.0, metric 1, tag 0

03:01:17: 172.18.1.0/28 via 0.0.0.0,. metric 1,tag 0

03:01:17: 172.18.2.0/28 via 0.0.0.0, metric 2, tag 0

R1#

03:01:23:RIP:received v2updatefrom 172.16.123.2 on Serial1

03:01:23: 172.16.123.8/30 via 0.0.0.0 in 1 hops

03:01:23: 172.18.2.0/28 via 0.0.0.0 in 1 hops

03:01:23: 172.18.3.0/24 via 0.0.0.0 in 2 hops

R1#conft

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

R1(config)#router rip

R1 (config-router)#passive-mterface default

R1(config-router#^Z

R1#

Term_Server>2

[Resuming connection 2 to R2 ... ]

R2#cle ip route *

R2#

Term_Server>3

[Resuming connection 3 to R3 ... ]

R3#cle ip route *

R3#

Term_Server>1

[Resuming connection 1 to R1... ]

R1#sh ip route rip

172.16.0.0/30 is subnetted,3 subnets

R 172.16.123.8[120/1]via 172.16.123.2,00:00:09,Serial1

[120/1]via 172.16.123.6,00:00:17,Serial0

172.18.0.0/16 is variably subnetted,3 subnets,2 masks

R 172.18.2.0/28[120/1] via 172.16.123.2,00:00:17,Serial0

R 172.18.3.0/24[120/1] via 172.16.123.6,00:00:09,Serial1

R1#

Term_Server>2

[Resuming connection 2 to R2...]

R2#

R2#sh ip route rip

172.16.0.0/30 is subnetted,3 subnets

R 172.16.123.4[120/1]via 172.16.123.10,00:00:24,Serial1

172.18.0.0/16 is variably subnetted,2 subnets,2 masks

R 172.18.3.0/24[120/1] via 172.16.123.10,00:00:24,Serial1

R2#

Term_Server>3

[Resuming connection 3 to R3...]

R3#sh ip route rip

172.16.0.0/30 is subnetted,3 subnets

R 172.16.123.0120/1] via 172.16.123.9,00:00:26,Serial1

172.18.0.0/16 is variably subnetted,2 subnets,2 masks

R 172.18.2.0/28[120/1] via 172.16.123.9,00:00:26,Serial1