实验三、配置Ospf与Eigrp的路由再发布
环境：三台路由器串口相连，接口配置如图 要求：1.配置EIGRP和关闭自动路由汇总
2.在R1上配置LOOP口的EIGRP手工路由汇总 3.在R2和R3配置Ospf 接口验证
4.在ASBR（R2）上做eigrp和ospf双向再发布
5.在R3上将所有loopback 口再发布到ospf中，但loopback2不能被R2，R3学到，不允许使用network命令 6.练习本课所有show命令
步骤一：配置三个路由器接口使其连通。
R1的配置
R1(config)# interface Loopback0
R1(config-if)#ip address 172.168.1.1 255.255.255.0 R1(config)# interface Loopback1
R1(config-if)#ip address 172.168.2.1 255.255.255.0 R1(config)#interface Loopback2
R1(config-if)#ip address 172.168.3.1 255.255.255.0 R1(config)# interface s0
R1(config-if)# ip address 10.1.1.1 255.255.255.0 R1(config-if)#clock rate 64000 R1(config-if)#no shutdown
R2的配置
R2(config)#interface s0
R2(config-if)#ip address 20.1.1.1 255.255.255.0
R2(config-if)#no shutdown R2(config)#interface s1
R2(config-if)# ip address 10.1.1.1 255.255.255.0 R2(config-if)#no shutdown
R3的配置
R3(config)# interface Loopback0
R3(config-if)#ip address 192.168.1.1 255.255.255.0 R3(config)# interface Loopback1
R3(config-if)#ip address 192.168.2.1 255.255.255.0 R3(config)#interface Loopback2
R3(config-if)#ip address 192.168.3.1 255.255.255.0 R3(config)# interface s1
R3(config-if)# ip address 20.1.1.2 255.255.255.0 R3(config-if)#clock rate 64000 R3(config-if)#no shutdown
步骤二： 配置Eigrp ,Ospf
R1的配置
R1(config)# router eigrp 100 ?启用EIGRP
R1(config-router)# network 10.1.1.0 0.0.0.255 ?发布相应接口 R1(config-router)#network 172.168.1.0 0.0.0.255 R1(config-router)#network 172.168.2.0 0.0.0.255 R1(config-router)#network 172.168.3.0 0.0.0.255
R1(config-router)# no auto-summary ?关闭自动汇总
R2的配置
R2(config)# router eigrp 100
R2(config-router)# network 10.1.1.0 0.0.0.255 R2(config-router)# no auto-summary
R2(config)# router ospf 10 ?在R2上即启用EIGRP并且启用OSPF R2(config-router)# network 20.1.1.0 0.0.0.255 area 0
R3的配置
R3(config)# router ospf 10
R3(config-router)# network 20.1.1.0 0.0.0.255 area 0
步骤三：配置EIGRP手工路由汇总和Ospf接口验证
R1的配置
R1(config)# interface s0
R1(config-if)# ip summary-address eigrp 100 172.168.0.0 255.255.252.0 ?手工汇总
R2的配置
R2(config)# interface s0
R2(config-if)# ip ospf authentication message-digest ?启用接口验证 R2(config-if)# ip ospf message-digest-key 1 md5 cisco
R3的配置
R3(config)# interface s1
R3(config-if)# ip ospf authentication message-digest ?启用接口认证 R3(config-if)# ip ospf message-digest-key 1 md5 cisco
步骤四：在R2，R3上做路由再发布并控制loopback2不能被R1,R2学到
R2的配置
R2(config)# router eigrp 100
R2(config-router)# redistribute ospf 10 metric 10000 100 255 1 1500?将ospf重分发进eigrp R2(config)# router ospf 10
R2(config-router)# redistribute eigrp 100 subnets ?将eigrp路由重分发到ospf
R3的配置
R3(config)# access-list 1 permit 192.168.1.0 0.0.0.255 ?定义分发条件列表 R3(config)# access-list 1 permit 192.168.2.0 0.0.0.255 R3(config)# access-list 2 permit 192.168.3.0 0.0.0.255
R3(config)# route-map o-e permit 10 ?做映射列表允许相应条目 R3 (config-route-map)# match ip address 1 ?将列表加载
R3(config)# route-map o-e deny 20 ?拒绝相应条目的映射列表 R3 (config-route-map)# match ip address 2 ?将列表加载 R3(config)# route-map o-e permit 25 ?最后允许其它所有 R3(config)# router ospf 10
R3(config-router)# redistribute connected subnets route-map o-e
步骤五：查看路由表
R1#sh ip route
Codes: 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 route
Gateway of last resort is not set
20.0.0.0/24 is subnetted, 1 subnets
D EX 20.1.1.0 [170/2195456] via 10.1.1.2, 00:03:50, Serial0 ?外部路由条目 172.168.0.0/16 is variably subnetted, 4 subnets, 2 masks D 172.168.0.0/22 is a summary, 00:03:56, Null0 C 172.168.1.0/24 is directly connected, Loopback0 C 172.168.2.0/24 is directly connected, Loopback1 C 172.168.3.0/24 is directly connected, Loopback2 10.0.0.0/24 is subnetted, 1 subnets
C 10.1.1.0 is directly connected, Serial0
D EX 192.168.1.0/24 [170/2195456] via 10.1.1.2, 00:01:53, Serial0 D EX 192.168.2.0/24 [170/2195456] via 10.1.1.2, 00:01:53, Serial0
R2#sh ip route
Codes: 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 route
Gateway of last resort is not set
20.0.0.0/24 is subnetted, 1 subnets
C 20.1.1.0 is directly connected, Serial0 172.168.0.0/22 is subnetted, 1 subnets
D 172.168.0.0 [90/2297856] via 10.1.1.1, 00:05:39, Serial1 10.0.0.0/24 is subnetted, 1 subnets
C 10.1.1.0 is directly connected, Serial1
O E2 192.168.1.0/24 [110/20] via 20.1.1.2, 00:03:42, Serial0 ?ospf外部路由条目类型2 O E2 192.168.2.0/24 [110/20] via 20.1.1.2, 00:03:42, Serial0
R3#sh ip route
Codes: 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 route
Gateway of last resort is not set
20.0.0.0/24 is subnetted, 1 subnets
C 20.1.1.0 is directly connected, Serial1 172.168.0.0/22 is subnetted, 1 subnets
O E2 172.168.0.0 [110/20] via 20.1.1.1, 00:04:48, Serial1 10.0.0.0/24 is subnetted, 1 subnets
O E2 10.1.1.0 [110/20] via 20.1.1.1, 00:04:48, Serial1 C 192.168.1.0/24 is directly connected, Loopback0 C 192.168.2.0/24 is directly connected, Loopback1 C 192.168.3.0/24 is directly connected, Loopback2
步骤六：用ping命令测试连通性
R1#ping 192.168.2.1 !!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 60/60/64 ms
R3#ping 172.168.1.1 !!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 60/60/60 ms
步骤七：查看配置
R1#sh run hostname R1 !
interface Loopback0
ip address 172.168.1.1 255.255.255.0 !
interface Loopback1
ip address 172.168.2.1 255.255.255.0 !
interface Loopback2
ip address 172.168.3.1 255.255.255.0 !
interface Serial0
ip address 10.1.1.1 255.255.255.0
ip summary-address eigrp 100 172.168.0.0 255.255.252.0 5 clockrate 64000 !
router eigrp 100
network 10.1.1.0 0.0.0.255