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EIGRP配置实验之路由注入
三种路由注入3中方法方法:
重分布:添加一条0.0.0.0默认路由,,在EIGRP路由进程中重分布该默认路由。
通 告:添加一条0.0.0.0默认路由,在EIGRP路由进程中network通告该默认路由。
ip default-network:
首先,ip default-network后面的网络必须是外网口所在网段的主类网络。
其次,在EIGRP路由进程中network通告该主类网络。
最后,必须存在到该主类网络的路由,没有的话,可以手动添加。
1、实验拓扑
2、基础配置
- R1
- interface Serial0/0
- ip address 12.1.1.1 255.255.255.0
- R2
- interface Serial0/0
- ip address 12.1.1.2 255.255.255.0
- interface Serial0/1
- ip address 23.1.1.2 255.255.255.0
- router eigrp 90
- network 23.1.1.0 0.0.0.255
- no auto-summary
- R3
- interface Serial0/0
- ip address 34.1.1.3 255.255.255.0
- serial restart-delay 0
- interface Serial0/1
- ip address 23.1.1.3 255.255.255.0
- serial restart-delay 0
- router eigrp 90
- network 23.1.1.0 0.0.0.255
- network 34.1.1.0 0.0.0.255
- auto-summary
- R4
- interface Serial0/0
- ip address 34.1.1.4 255.255.255.0
- router eigrp 90
- network 34.1.1.0 0.0.0.255
- auto-summary
3、重分布配置
- R2(config)#ip route 0.0.0.0 0.0.0.0 s0/0
- R2(config)#router eigrp 90
- R2(config-router)#redistribute static
- R3#show ip route
- Codes: C - connected, S - static, 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
- 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 23.1.1.2 to network 0.0.0.0
- 34.0.0.0/24 is subnetted, 1 subnets
- C 34.1.1.0 is directly connected, Serial0/0
- 23.0.0.0/24 is subnetted, 1 subnets
- C 23.1.1.0 is directly connected, Serial0/1
- D*EX 0.0.0.0/0 [170/2681856] via 23.1.1.2, 00:00:04, Serial0/1
- R3#
- R4#show ip route
- Codes: C - connected, S - static, 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
- 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 34.1.1.3 to network 0.0.0.0
- 34.0.0.0/24 is subnetted, 1 subnets
- C 34.1.1.0 is directly connected, Serial0/0
- 23.0.0.0/24 is subnetted, 1 subnets
- D 23.1.1.0 [90/2681856] via 34.1.1.3, 00:01:51, Serial0/0
- D*EX 0.0.0.0/0 [170/3193856] via 34.1.1.3, 00:00:12, Serial0/0
- R4#
重分布进来的静态路由属外部路由,故其AD为170
4、通告配置
- R2(config)#ip route 0.0.0.0 0.0.0.0 s0/0
- R2(config)#router eigrp 90
- R2(config-router)#network 0.0.0.0
- R3#show ip route
- Codes: C - connected, S - static, 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
- 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 23.1.1.2 to network 0.0.0.0
- 34.0.0.0/24 is subnetted, 1 subnets
- C 34.1.1.0 is directly connected, Serial0/0
- 23.0.0.0/24 is subnetted, 1 subnets
- C 23.1.1.0 is directly connected, Serial0/1
- 12.0.0.0/24 is subnetted, 1 subnets
- D 12.1.1.0 [90/2681856] via 23.1.1.2, 00:00:02, Serial0/1
- D* 0.0.0.0/0 [90/2681856] via 23.1.1.2, 00:00:02, Serial0/1
- R3#
- R4#show ip route
- Codes: C - connected, S - static, 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
- 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 34.1.1.3 to network 0.0.0.0
- 34.0.0.0/24 is subnetted, 1 subnets
- C 34.1.1.0 is directly connected, Serial0/0
- 23.0.0.0/24 is subnetted, 1 subnets
- D 23.1.1.0 [90/2681856] via 34.1.1.3, 00:03:29, Serial0/0
- 12.0.0.0/24 is subnetted, 1 subnets
- D 12.1.1.0 [90/3193856] via 34.1.1.3, 00:00:28, Serial0/0
- D* 0.0.0.0/0 [90/3193856] via 34.1.1.3, 00:00:28, Serial0/0
- R4#
network通告进来的静态路由属内部路由,故其AD为90
5、ip default-network配置
- R2(config)#ip default-network 12.0.0.0
- R2(config)#router eigrp 90
- R2(config-router)#network 12.0.0.0 0.255.255.255
- R2(config-router)#exit
- R2(config)#ip route 12.0.0.0 255.0.0.0 null 0
- R3#show ip route
- Codes: C - connected, S - static, 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
- 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 23.1.1.2 to network 12.0.0.0
- 34.0.0.0/24 is subnetted, 1 subnets
- C 34.1.1.0 is directly connected, Serial0/0
- 23.0.0.0/24 is subnetted, 1 subnets
- C 23.1.1.0 is directly connected, Serial0/1
- 12.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
- D 12.1.1.0/24 [90/2681856] via 23.1.1.2, 00:01:28, Serial0/1
- D* 12.0.0.0/8 [90/2169856] via 23.1.1.2, 00:00:35, Serial0/1
- R3#
- R4#show ip route
- Codes: C - connected, S - static, 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
- 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 34.1.1.3 to network 12.0.0.0
- 34.0.0.0/24 is subnetted, 1 subnets
- C 34.1.1.0 is directly connected, Serial0/0
- 23.0.0.0/24 is subnetted, 1 subnets
- D 23.1.1.0 [90/2681856] via 34.1.1.3, 00:06:38, Serial0/0
- 12.0.0.0/8 is variably subnetted, 2 subnets, 2 masks
- D 12.1.1.0/24 [90/3193856] via 34.1.1.3, 00:01:59, Serial0/0
- D* 12.0.0.0/8 [90/2681856] via 34.1.1.3, 00:01:07, Serial0/0
- R4#