EIGRP小知识点

EIGRP   小知识点 

基于IP 协议号88 组播更新 224.0.0.10

五种数据包 

hello 用来建立邻居

update 用来传递路由

ack  确认包

query 拓扑发生变化的时候用到

reply 给query一个应答

hello 时间5s hold down 时间 15s

EIGRP 建立邻居几个要点

1、AS号

2、k值

3、验证通过（密码匹配）

eigrp默认自动汇总 

 

     1.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C       1.1.1.1/32 is directly connected, Loopback0

D       1.0.0.0/8 is a summary, 00:10:27, Null0

D    2.0.0.0/8 [90/2297856] via 12.1.1.2, 00:10:31, Serial0/0

D    3.0.0.0/8 [90/2297856] via 13.1.1.3, 00:09:57, Serial0/1

     12.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C       12.1.1.0/24 is directly connected, Serial0/0

D       12.0.0.0/8 is a summary, 00:10:27, Null0

     13.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C       13.1.1.0/24 is directly connected, Serial0/1

D       13.0.0.0/8 is a summary, 00:09:58, Null0

就如这个路由表一样 配置时候应该关闭自动汇总