enable configurate t R4#conf t R4(config)#interface serial 0/0/? R4(config-if)#ip address 192.168.?.? 255.255.255.0 show ip route show ip interface br R4#no ip domain lookup R4(config)#interface Serial 0/0/1 R4(config-if)#ip address 192.168.4.1 255.255.255.0 R4(config-if)#no shutdown R4#ping 192.168.3.1 R4#ping 192.168.4.2 R4#wr mem R4#show R3#conf t Enter configuration commands, one per line. End with CNTL/Z. R3(config)#int fa0/0 R3(config-if)#ip add 209.165.200.238 255.255.255.252 R3(config-if)#int fa0/1 R3(config-if)#ip add 172.16.3.1 255.255.255.0 R3#conf t Enter configuration commands, one per line. End with CNTL/Z. R3(config)#int l0 R3(config-if)#ip add 172.16.200.49 255.255.255.240 R3(config-if)#int l1 R3(config-if)# *Mar 29 10:25:28.615: %LINEPROTO-5-UPDOWN: Line protocol on Interface Loopback1, changed state to up R3(config-if)#ip add 172.16.200.65 255.255.255.240 R3(config-if)#end R3#sh ip *Mar 29 10:27:55.483: %SYS-5-CONFIG_I: Configured from console by console R3#sh ip int brief Interface IP-Address OK? Method Status Prot ocol FastEthernet0/0 209.165.200.238 YES manual up up FastEthernet0/1 172.16.3.1 YES manual up up Serial0/0/0 unassigned YES unset administratively down down Serial0/0/1 unassigned YES unset administratively down down Loopback0 172.16.200.49 YES manual up up Loopback1 172.16.200.65 YES manual up up R3#copy run start Destination filename [startup-config]? Building configuration... [OK] R3#conf t Enter configuration commands, one per line. End with CNTL/Z. R3(config)#router rip R3(config-router)#version 2 R3(config-router)#no ver 2 R3(config-router)#net 172.16.0.0 R3(config-router)#net 209.165.200.0 R3(config-router)#end R3#sh *Mar 29 10:49:24.203: %SYS-5-CONFIG_I: Configured from console by console R3#sh ip pro Routing Protoco Sending updates every 30 seconds, next due in 11 seconds Would you like to enter the initial configuration dial Invalid after 180 seconds, hold down 180, flushed after 240 System Bootstrap, Version 12 Outgoing update filter list for all interfaces is not set Technical Support: http:// Incoming update filter list for all interfaces is not set Copyright (c) 2004 by cisco Systems, Inc. Redistributing: rip PL Default version control: send version 1, receive any version c1841 processor with 131072 Kbytes of main memory Interface Send Recv Triggered RIP Key-chains configured to 64 bit mode with parity disabled FastEthernet0/0 1 1 2 Readonly ROMMON initi FastEthernet0/1 1 1 2ogram load complete, entry point: 0 Loopback0 1 1 2 Loopback1 program load compl Gateway Distance Last Update Distance: (default is 120)ressing the image : ######## R3#conf t######### Enter configuration commands, one per line. End with CNTL/Z. ##################### R3(config)#ro rip################# % Ambiguous command: "ro rip" R3(config)#router rip R3(config-router)#passive-interface fa0/0### [OK] R3(config-router)#no passive-interface fa0/0 smart init is sizing iomem Routing Protocol is "rip" Sending updates every 30 seconds, next due in 27 seconds Invalid after 180 seconds, hold down 180, flushed after 240 Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Redistributing: rip Default version control: send version 1, receive any version Interface Send Recv Triggered RIP Key-chain FastEthernet0/0 1 1 2 Automatic network summarization is in effect Maximum path: 4 Routing for Networks: 172.16.0.0 209.165.200.0 Passive Interface(s): FastEthernet0/1 Loopback0 Loopback1 Routing Information Sources: Gateway Distance Last Update 209.165.200.237 120 00:00:24 Distance: (default is 120) R3#ping 209.165.200.245 R3#conf t Enter configuration commands, one per line. End with CNTL/Z. R3(config)#router rip R3(config-router)#version 2 R3(config-router)#no ver 2 R3(config-router)#net 172.16.0.0 R3#show 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 172.16.0.0/28 is subnetted, 2 subnets C 172.16.200.64 is directly connected, Loopback1 C 172.16.200.48 is directly connected, Loopback0 R3# R3#sh ip prois directly R3(config)#rout rip0:39:44.371: %LINK- % Ambiguous command: "rout rip"/0, changed state t R3(config)#router rip R3(config-router)#no auto-sum show ip prot outing Protocol is "rip" Sending updates every 30 seconds, next due in 22 seconds Invalid after 180 seconds, hold down 180, flushed after 240 Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Redistributing: rip Default version control: send version 2, receive version 2 Interface Send Recv Triggered RIP Key-chain FastEthernet0/0 2 2 Automatic network summarization is not in effect Maximum path: 4 Routing for Networks: 172.16.0.0 209.165.200.0 Passive Interface(s): FastEthernet0/1 Loopback0 Loopback1 Routing Information Sources: Gateway Distance Last Update 209.165.200.237 120 00:00:15 Distance: (default is 120) R3#telnet 172.16.10.14 R3#show ip eigrp topology R3#show ip eigrp topology all-link