EIGRP协议手动汇总

案例要求：

eigrp协议的手动汇总：

一、基本配置：

r1(config)#in se0/0/0

r1(config-if)#no shutdown

r1(config-if)#ip add 192.168.1.1 255.255.255.0

r1(config-if)#clock rate 64000

r1(config-if)#exit

r1(config)#router eigrp 100

r1(config-router)#network 192.168.1.0

r2(config)#int se0/0/0

r2(config-if)#no shutdown

r2(config-if)#ip add 192.168.1.2 255.255.255.0

r2(config-if)#int se0/0/1

r2(config-if)#clock rate 64000

r2(config-if)#ip add 192.168.2.1 255.255.255.0

r2(config-if)#exit

r2(config-router)#network 192.168.1.0

r2(config-router)#network 192.168.2.0

r3(config)#int se0/0/0

r3(config-if)#no shutdown

r3(config-if)#ip add 192.168.2.2 255.255.255.0

r3(config-if)#int loo 0

r3(config-if)#ip add 193.1.0.1 255.255.255.0

r3(config-if)#int loo 1

r3(config-if)#ip add 193.1.1.1 255.255.255.0

r3(config-if)#int loo 2

r3(config-if)#ip add 193.1.2.1 255.255.255.0

r3(config-if)#int loo 3

r3(config-if)#ip add 193.1.3.1 255.255.255.0

r3(config-if)#exit

二、路由宣告：

r3(config)#router eigrp 100

r3(config-router)#network 192.168.2.0

r3(config-router)#network 193.1.0.0

r3(config-router)#network 193.1.1.0

r3(config-router)#network 193.1.2.0

r3(config-router)#network 193.1.3.0

r3(config-router)#no auto-summary  关闭自动汇总

 三、手动汇总

r3(config-if)#ip summary-address eigrp 100 193.1.0.0 255.255.252.0   在接口模式下手动汇总

                                                        193.1.0.1/24

                                                        193.1.1.1/24

                                                        193.1.2.1/24

                                                        193.1.3.1/24  将这四个汇总后：193.1.0.0/22

四、检测：

r2#show ip route         手动汇总后在r2上查看路由表（注意没有汇总前的路由表会是四条路由信息，汇总后下面是一条的）

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

C    192.168.1.0/24 is directly connected, Serial0/0/0

C    192.168.2.0/24 is directly connected, Serial0/0/1

D    193.1.0.0/22 [90/2297856] via 192.168.2.2, 00:00:34, Serial0/0/1