实验一、配置Eigrp 验证，汇总
环境：三台路由器串口相连，其它接口配置如图
要求：1.配置EIGRP关闭自动路由汇总
2.在R1的三个LOOP口进行EIGRP手工路由汇总
3.R2、R3配置EIGRP接口密文验证
4.验证并测试结果
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 30.1.1.1 255.255.255.0
R1(config)# interface Loopback1
R1(config-if)# ip address 30.1.2.1 255.255.255.0
R1(config)# interface Loopback2
R1(config-if)# ip address 30.1.3.1 255.255.255.0
R1(config)# interface s0
R1(config-if)# ip address 10.1.1.2 255.255.255.0
R1(config-if)#no shutdown
R2的配置
R2(config)# interface s0
R2(config-if)# ip address 10.1.1.1 255.255.255.0
R2(config-if)#clockrate 64000
R2(config-if)#no shutdown
R2(config)# interface s1
R2(config-if)# ip address 20.1.1.1 255.255.255.0
R12(config-if)#no shutdown
R3的配置
R3(config)# interface Loopback0
R3(config-if)# ip address 40.1.1.1 255.255.255.0
R3(config)# interface s1
R3(config-if)# ip address 20.1.1.2 255.255.255.0
R3(config-if)#clockrate 64000
R3(config-if)#no shutdown
步骤二： 配置Eigrp
R1的配置
R1(config)# router eigrp 100 à启用eigrp，自治号为100，三台路由器保持一致
R1(config-router)# network 10.1.1.0 0.0.0.255 à使相关接口参与eigrp
R1(config-router)# network 30.1.1.0 0.0.0.255
R1(config-router)# network 30.1.2.0 0.0.0.255
R1(config-router)# network 30.1.3.0 0.0.0.255
R1(config-router)# no auto-summary à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)# network 20.1.1.0 0.0.0.255
R2(config-router)# no auto-summary
R3的配置
R3(config)# router eigrp 100
R3(config-router)# network 20.1.1.0 0.0.0.255
R3(config-router)# network 40.1.1.0 0.0.0.255
R3(config-router)# no auto-summary
步骤三：配置EIGRP手工路由汇总
R1的配置
R1(config)# interface s0
R1(config-if)# ip summary-address eigrp 100 30.1.0.0 255.255.252.0 à手工汇总路由
步骤四：在r2和r3上配置EIGRP 验证
R2的配置
R2(config)# key chain cisco à定义chain名称
R2(config-keychain)# key 1 àkey值编号，须一致
R2(config-keychain-key)# key-string aaa à定义密钥，须一致
R2(config)# interface s1
R2(config-if)# ip authentication mode eigrp 100 md5 à启用eigrp验证模式md5
R2(config-if)# ip authentication key-chain eigrp 100 cisco à将chain应用到验证
R3的配置
R3(config)# key chain cisco
R3(config-keychain)# key 1
R3(config-keychain-key)# key-string aaa
R3(config)# interface s1
R3(config-if)# ip authentication mode eigrp 100 md5
R3(config-if)# ip authentication key-chain eigrp 100 cisco
步骤五：查看路由表
R1#show ip route à显示路由表，如下图显示证明验证通过D为eigrp路由
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, su - IS-IS summary, 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 20.1.1.0 [90/2681856] via 10.1.1.1, 00:12:39, Serial0
40.0.0.0/24 is subnetted, 1 subnets
D 40.1.1.0 [90/2809856] via 10.1.1.1, 00:12:39, Serial0
10.0.0.0/24 is subnetted, 1 subnets
C 10.1.1.0 is directly connected, Serial0
30.0.0.0/8 is variably subnetted, 4 subnets, 2 masks
C 30.1.3.0/24 is directly connected, Loopback2
C 30.1.2.0/24 is directly connected, Loopback1
C 30.1.1.0/24 is directly connected, Loopback0
D 30.1.0.0/22 is a summary, 00:12:47, Null0 à汇总产生的空接口
R2#show 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, su - IS-IS summary, 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
40.0.0.0/24 is subnetted, 1 subnets
D 40.1.1.0 [90/2297856] via 20.1.1.2, 00:13:13, Serial1
10.0.0.0/24 is subnetted, 1 subnets
C 10.1.1.0 is directly connected, Serial0
30.0.0.0/22 is subnetted, 1 subnets
D 30.1.0.0 [90/2297856] via 10.1.1.2, 00:10:02, Serial0 à学到了汇总的条目
R3#show 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, su - IS-IS summary, 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
40.0.0.0/24 is subnetted, 1 subnets
C 40.1.1.0 is directly connected, Loopback0
10.0.0.0/24 is subnetted, 1 subnets
D 10.1.1.0 [90/2681856] via 20.1.1.1, 00:06:33, Serial1
30.0.0.0/22 is subnetted, 1 subnets
D 30.1.0.0 [90/2809856] via 20.1.1.1, 00:03:22, Serial1
步骤六：查看邻居表
R1#show ip eigrp neighbors à显示邻居
IP-EIGRP neighbors for process 100
H Address Interface Hold Uptime SRTT RTO Q Seq Type
(sec) (ms) Cnt Num
0 10.1.1.1 Se0 11 00:13:11 28 200 0 35
R2#show ip eigrp neighbors
IP-EIGRP neighbors for process 100
H Address Interface Hold Uptime SRTT RTO Q Seq Type
(sec) (ms) Cnt Num
0 10.1.1.2 Se0 12 00:10:49 670 4020 0 22
1 20.1.1.2 Se1 13 00:14:04 36 216 0 14
R3#sh ip eigrp neighbors
IP-EIGRP neighbors for process 100
H Address Interface Hold Uptime SRTT RTO Q Seq Type
(sec) (ms) Cnt Num
0 20.1.1.1 Se1 13 00:09:18 252 1512 0 36
步骤七：用ping命令测试
R1#ping 40.1.1.1 à测试连通性，显示已通
!!!!!
R3#ping 30.1.1.1
!!!!!
步骤八：显示当前配置信息
R1#sh run
hostname R1
!
interface Loopback0
ip address 30.1.1.1 255.255.255.0
!
interface Loopback1
ip address 30.1.2.1 255.255.255.0
!
interface Loopback2
ip address 30.1.3.1 255.255.255.0
!
interface Serial0
ip address 10.1.1.2 255.255.255.0
ip summary-address eigrp 100 30.1.0.0 255.255.252.0 5
!
router eigrp 100
network 10.1.1.0 0.0.0.255
network 30.1.1.0 0.0.0.255
network 30.1.2.0 0.0.0.255
network 30.1.3.0 0.0.0.255
no auto-summary
end
R2#sh run
hostname R2
!
key chain cisco
key 1
key-string aaa
!
interface Serial0
ip address 10.1.1.1 255.255.255.0
clockrate 64000
!
interface Serial1
ip address 20.1.1.1 255.255.255.0
ip authentication mode eigrp 100 md5
ip authentication key-chain eigrp 100 cisco
!
router eigrp 100
network 10.1.1.0 0.0.0.255
network 20.1.1.0 0.0.0.255
no auto-summary
end
R3#sh run
hostname R3
!
key chain cisco
key 1
key-string aaa
!
interface Loopback0
ip address 40.1.1.1 255.255.255.0
！
interface Serial1
ip address 20.1.1.2 255.255.255.0
ip authentication mode eigrp 100 md5
ip authentication key-chain eigrp 100 cisco
clockrate 64000
!
router eigrp 100
network 20.1.1.0 0.0.0.255
network 40.1.1.0 0.0.0.255
no auto-summary
end
本文转自hexianguo 51CTO博客，原文链接：http://blog.51cto.com/xghe110/89989，如需转载请自行联系原作者
