R1：RouterRouterenRouter#Router#conf tEnter configuration commands, one per line. End with CNTL/Z.Router(config)#Router(config)#ho r1r1(config)#int s0/0r1(config-if)#ip add 172.16.12.1 255.255.255.0r1(config-if)#no shur1(config-if)#int s0/1*Mar 1 00:01:20.499: %LINK-3-UPDOWN: Interface Serial0/0, changed state to up*Mar 1 00:01:21.499: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to upr1(config-if)#ip add 172.16.13.1 255.255.255.0 r1(config-if)#no shur1(config-if)#*Mar 1 00:01:49.531: %LINK-3-UPDOWN: Interface Serial0/1, changed state to up*Mar 1 00:01:50.531: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1, changed state to uprouterr1(config-if)#router eigrp 90r1(config-router)#net 0.0.0.0r1(config-router)#no aur1(config-router)#no auto-summary r1(config-router)#endR2：outerenRouter#Router#conf tEnter configuration commands, one per line. End with CNTL/Z.Router(config)#Router(config)#ho r2r2(config)#int s0/0r2(config-if)#ip add 172.16.12.2 255.255.255.0r2(config-if)#clor2(config-if)#clock rar2(config-if)#clock rate 2000000%Clockrate bestfitted (rounded) to 2016000r2(config-if)#no shur2(config-if)#int s0/1*Mar 1 00:03:01.539: %LINK-3-UPDOWN: Interface Serial0/0, changed state to up*Mar 1 00:03:02.539: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to upr2(config-if)#r2(config-if)#ip add 172.16.24.2 255.255.255.0r2(config-if)#clor2(config-if)#clock rar2(config-if)#clock rate 2000000 %Clockrate bestfitted (rounded) to 2016000r2(config-if)#no shur2(config-if)#r2(config-if)#rout*Mar 1 00:03:46.183: %LINK-3-UPDOWN: Interface Serial0/1, changed state to up*Mar 1 00:03:47.183: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1, changed state to uper r2(config-if)#router eigrp 90r2(config-router)#net 0.0.0.0r2(config-router)#no*Mar 1 00:03:59.171: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 90: Neighbor 172.16.12.1 (Serial0/0) is up: new adjacency aur2(config-router)#no auto-summary2#show ip route eigr2#show ip route eigrp 172.16.0.0/24 is subnetted, 4 subnetsD 172.16.34.0 90/2195456 via 172.16.24.4, 00:01:16, Serial0/1D 172.16.13.0 90/2681856 via 172.16.12.1, 00:01:14, Serial0/0D*EX 0.0.0.0/0 170/2707456 via 172.16.24.4, 00:00:22, Serial0/1r2#r2#R3：RouterRouterenRouter#Router#conf tEnter configuration commands, one per line. End with CNTL/Z.Router(config)#ho r3r3(config)#r3(config)#r3(config)#int e1/0r3(config-if)#ip add 172.16.34.3 255.255.255.0r3(config-if)#no shur3(config-if)#*Mar 1 00:00:41.839: %LINK-3-UPDOWN: Interface Ethernet1/0, changed state to up*Mar 1 00:00:42.839: %LINEPROTO-5-UPDOWN: Line protocol on Interface Ethernet1/0, changed state to upr3(config-if)#r3(config-if)#int s0/0r3(config-if)#ip add 172.16.13.3 255.255.255.0r3(config-if)#clor3(config-if)#clock rar3(config-if)#clock rate 2000000%Clockrate bestfitted (rounded) to 2016000r3(config-if)#no shur3(config-if)#r3(config-if)#int s0/1r3(config-if)#i*Mar 1 00:01:34.607: %LINK-3-UPDOWN: Interface Serial0/0, changed state to up*Mar 1 00:01:35.607: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0, changed state to upp r3(config-if)#ip add 35.35.35.3 255.255.255.0r3(config-if)#clor3(config-if)#clock % Incomplete command.r3(config-if)#r3(config-if)#clock rar3(config-if)#clock rate 2000000%Clockrate bestfitted (rounded) to 2016000r3(config-if)#no shur3(config-if)#router*Mar 1 00:02:05.607: %LINK-3-UPDOWN: Interface Serial0/1, changed state to up*Mar 1 00:02:06.607: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1, changed state to upr3(config-if)#router eigrpr3(config-if)#router eigrp 90r3(config-router)#rer3(config-router)#redistribute str3(config-router)#redistribute static mr3(config-router)#redistribute static metric 1544 2000 255 1 1000r3(config-router)#r3(config-router)#r3(config-router)#r3(config-router)#no redistribute static metric 1544 2000 255 1 1000r3(config-router)#no redistribute static metric 1544 2000 255 1 1500r3(config-router)# redistribute static metric 1544 2000 255 1 1500 r3(config-router)#net 172.16.0.0r3(config-router)#no a*Mar 1 00:03:12.907: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 90: Neighbor 172.16.34.4 (Ethernet1/0) is up: new adjacency*Mar 1 00:03:12.907: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 90: Neighbor 172.16.13.1 (Serial0/0) is up: new adjacencyur3(config-router)#no auto-summary r3(config-router)#*Mar 1 00:03:15.463: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 90: Neighbor 172.16.13.1 (Serial0/0) is resync: summary configured*Mar 1 00:03:15.463: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 90: Neighbor 172.16.34.4 (Ethernet1/0) is resync: summary configuredr3(config-router)#r3(config-router)#r3(config-router)#r3(config-router)#no eir3(config-router)#no eigrp lor3(config-router)#n