帧中继下的EIGRP水平分割解决方案实验.doc

帧中继下的EIGRP水平分割解决方案实验来源：www.56C 作者：小飞侠 发布时间：2008-10-14 阅读次数 亚威岁末大优惠所有Cisco培训课程7折 实验步骤：1：在R1上的配置；RouterRouter#enRouter#conf tEnter configuration commands, one per line. End with CNTL/Z.Router(config)#no ip domain-loRouter(config)#lin co 0Router(config-line)#logg sRouter(config-line)#no exec-tRouter(config-line)#ho R1R1(config)#int s3/0R1(config-if)#en frR1(config-if)#no frame-relay inverse-arp R1(config-if)#no shuR1(config-if)exit R1(config)#int s3/0.1 multipoint R1(config-subif)#no frame-relay inverse-arp R1(config-subif)#ip add R1(config-subif)#no shuR1(config-subif)#frame-relay map ip 102 bR1(config-subif)#frame-relay map ip 103 b R1(config-subif)#exitR1(config)#int lo 0R1(config-if)#ip add R1(config-if)#no shuR1(config-if)#end2：在R2上的配置；RouterenRouter#conf tEnter configuration commands, one per line. End with CNTL/Z.Router(config)#no ip doRouter(config)#no ip domain-loRouter(config)#lin co 0 Router(config-line)#logg sRouter(config-line)#no exec-tRouter(config-line)#ho R2R2(config)#int s3/0R2(config-if)no shuR2(config-if)#en frameR2(config-if)#no frame-relay invR2(config-if)#ip add R2(config-if)#frame map ip 201 bR2(config-if)#exitR2(config)#int lo 0R2(config-if)#ip add R2(config-if)#exitR2(config)#router eigrp 1R2(config-router)#net R2(config-router)#net R2(config-router)#no auto-summary R2(config-router)#end3：在R3上的配置；RouterenRouter#conf tEnter configuration commands, one per line. End with CNTL/Z.Router(config)#no ip doRouter(config)#no ip domain-loRouter(config)#lin co 0 Router(config-line)#logg sRouter(config-line)#no exec-tRouter(config-line)#ho R3R3(config)#int s3/0R3(config-if)#en frameR3(config-if)#no frame invR3(config-if)#ip add R3(config-if)#fram map ip 301 bR3(config-if)#no shuR3(config-if)#exitR3(config)#int lo 0R3(config-if)#ip add R3(config-if)#no shuR3(config-if)#exitR3(config)#router eigrp 1R3(config-router)#net R3(config-router)#net R3(config-router)#no auto-summary R3(config-router)#end4:在R1上查看路由信息；R1#sho ip routeCodes: C - connected, S - static, I - IGRP, 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, E - EGP 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 routeGateway of last resort is not setC /24 is directly connected, Serial3/0.1 /8 is variably subnetted, 2 subnets, 2 masksD /8 is a summary, 00:01:33, Null0C /24 is directly connected, Loopback0 /24 is subnetted, 1 subnetsD 90/2297856 via , 00:01:28, Serial3/0.1 /24 is subnetted, 1 subnetsD 90/2297856 via , 00:00:59, Serial3/0.15：在R2上查看路由信息；R2#sho ip routeCodes: C - connected, S - static, I - IGRP, 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, E - EGP 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 routeGateway of last resort is not set6：在R3上查看路由信息；R3#sho ip routeCodes: C - connected, S - static, I - IGRP, 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, E - EGP 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 routeGateway of last resort is not set出现的问题：由于水平分割的存在，使得R2和R3之间不可以相互学习路由。解决此问题的方法有：第一种：常见在做法就是在R1的S30/0.1上关闭水平分割；配置命令：R1(config)#int s3/0.1 R1(config-subif)#no ip split-horizon eigrp 1 在去查看R2的路由表R2#sho ip routeCodes: C - connected, S - static, I - IGRP, 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, E - EGP 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 routeGateway of last resort is not setC /24 is directly connected, Serial3/0D /8 90/2297856 via , 00:01:29, Serial3/0 /24 is subnetted, 1 subnetsC is directly connected, Loopback0 /24 is subnetted, 1 subnetsD 90/2809856 via , 00:00:38, Serial3/0R2已经学习到了R3的路由信息查看R3的路由信息R3#sho ip routeCodes: C - connected, S - static, I - IGRP, 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, E - EGP 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 st