EIGRP的基础配置

实验拓扑图：

 

实验过程

 

1.R1的预配置

Router>en Router#config t Enter configuration commands, one per line.  End with CNTL/Z. Router(config)#no ip domain-lookup Router(config)#line console 0 Router(config-line)#no exec-timeout Router(config-line)#loggin syn Router(config-line)#exit Router(config)#host R1 R1(config)#interface s1/0 R1(config-if)#no shut R1(config-if)#ip add 192.168.0.1 255.255.255.0 R1(config-if)#exit

2.R2的预配置

Router>en Router#config t Enter configuration commands, one per line.  End with CNTL/Z. Router(config)#no ip domain-lookup Router(config)#line console 0 Router(config-line)#no exec-timeout Router(config-line)#loggin syn Router(config-line)#exit Router(config)#host R2 R2(config)#interface s1/0 R2(config-if)#no shut R2(config-if)#ip add 192.168.0.2 255.255.255.0 R2(config-if)#exit R2(config)#interface s1/1 R2(config-if)#no shut R2(config-if)#ip add 172.16.0.1 255.255.255.0 R2(config-if)#exit

3.R3的预配置

Router>en Router#config t Enter configuration commands, one per line.  End with CNTL/Z. Router(config)#no ip domain-lookup Router(config)#line console 0 Router(config-line)#no exec-timeout Router(config-line)#loggin syn Router(config-line)#exit Router(config)#host R3 R3(config)#interface s1/1 R3(config-if)#no shut R3(config-if)#ip add 172.16.0.2 255.255.255.0 R3(config-if)#exit

4.R1配置EIGRP

R1(config)#router eigrp 100  //启动eigrp，AS 100 R1(config-router)#network 192.168.0.1 0.0.0.0  //使用反掩码宣告准确网络 R1(config-router)#no auto  //关闭自动汇总 R1(config-router)#end

5.R2配置EIGRP

R2(config)#router eigrp 100 R2(config-router)#network 192.168.0.2 0.0.0.0 R2(config-router)#network 172.16.0.1 0.0.0.0 R2(config-router)#no auto R2(config-router)#end

6.R3配置EIGRP

R3(config)#router eigrp 100 R3(config-router)#network 172.16.0.2 //不使用反掩码宣告网络 R3(config-router)#no auto R3(config-router)#end

7.查看协议信息

R1#show ip protocols Routing Protocol is "eigrp 100"   Outgoing update filter list for all interfaces is not set   Incoming update filter list for all interfaces is not set   Default networks flagged in outgoing updates   Default networks accepted from incoming updates   EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0   EIGRP maximum hopcount 100  //EIGRP最大支持100跳   EIGRP maximum metric variance 1   Redistributing: eigrp 100   EIGRP NSF-aware route hold timer is 240s   Automatic network summarization is not in effect   Maximum path: 4   Routing for Networks:     192.168.0.1/32  //使用32位前缀精确宣告   Routing Information Sources:     Gateway         Distance      Last Update     192.168.0.2           90      00:06:16   Distance: internal 90 external 170

R3#show ip protocols Routing Protocol is "eigrp 100"   Outgoing update filter list for all interfaces is not set   Incoming update filter list for all interfaces is not set   Default networks flagged in outgoing updates   Default networks accepted from incoming updates   EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0   EIGRP maximum hopcount 100   EIGRP maximum metric variance 1   Redistributing: eigrp 100   EIGRP NSF-aware route hold timer is 240s   Automatic network summarization is not in effect   Maximum path: 4   Routing for Networks:     172.16.0.0  //宣告不带反掩码会自动汇总成有类网络   Routing Information Sources:     Gateway         Distance      Last Update     172.16.0.1            90      00:07:04   Distance: internal 90 external 170

8.查看eigrp的邻居表

R2#show ip eigrp nei IP-EIGRP neighbors for process 100 H   Address               Interface       Hold Uptime   SRTT   RTO  Q  Seq                                             (sec)         (ms)       Cnt Num 1   172.16.0.2              Se1/1             13 00:00:11  116   696  0  3 0   192.168.0.1             Se1/0             11 00:01:03  104   624  0  3

9.查看eigrp路由表

R1#show ip route eigrp      172.16.0.0/24 is subnetted, 1 subnets D       172.16.0.0 [90/2681856] via 192.168.0.2, 00:10:17, Serial1/0  //EIGRP学习到的路由用“D来表示。”

R3#show ip route eigrp D    192.168.0.0/24 [90/2681856] via 172.16.0.1, 00:10:02, Serial1/1