Cisco(config)#router eigrp 90

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

Cisco(config-router)#network 12.1.1.0 0.0.0.255

Cisco#show ip eigrp neighbors  //查看邻居表

Cisco#show ip eigrp topology  //查看拓扑表

Cisco#show ip route  //查看路由表

Cisco(config)#int f0/0

Cisco(config-if)#ip hello-interval eigrp 90 5  //修改hello时间间隔

Cisco(config-if)#ip hold-time eigrp 90 15

Cisco#show ip eigrp interfaces detail

Cisco(config)#router eigrp 90

Cisco(config-router)#passive-interface f0/1  //配置被动接口

Cisco(config-router)#redistribute static  //重分布静态路由

Cisco(config)#int f0/0

Cisco(config-if)#ip summary-address eigrp 90 172.16.0.0 255.255.0.0  //配置路由汇总

Cisco(config)#router eigrp 90

Cisco(config-router)#variance 1  //配置最优路径基数

Cisco#debug eigrp packets  

Cisco(config)#router eigrp 90

Cisco(config-router)#eigrp stub   //配置末节路由器

Cisco(config)#key chain k1

Cisco(config-keychain)#key 1

Cisco(config-keychain-key)#key-string abc123

Cisco(config)#int f0/0

Cisco(config-if)#ip authentication key-chain eigrp 90 k1

Cisco(config-if)#ip authentication mode eigrp 90 md5

Cisco(config-router)#eigrp router-id 3.3.3.3