CCNP实验：ODR配置

r1#conf t   
r1(config)#int f0/0
r1(config-if)#ip add 192.168.12.1 255.255.255.0
r1(config-if)#no sh
r1(config-if)#int lo 0
r1(config-if)#ip add 1.1.1.1 255.255.255.255
r1(config-if)#^Z

r2#conf t
r2(config)#int f0/0
r2(config-if)#ip add 192.168.12.2 255.255.255.0
r2(config-if)#no sh
r2(config-if)#int f1/0
r2(config-if)#ip add 192.168.23.2 255.255.255.0
r2(config-if)#no sh                           
r2(config-if)#int lo 0
r2(config-if)#ip add 2.2.2.2 255.255.255.255
r2(config-if)#^Z

r2#conf t
r2(config)#router odr
r2(config-router)#^Z

r3#conf t
r3(config)#int f0/0
r3(config-if)#ip add 192.168.23.3 255.255.255.0
r3(config-if)#no sh
r3(config-if)#int lo 0
r3(config-if)#ip add 3.3.3.3 255.255.255.255
r3(config-if)#^Z

查看配置：

r1#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 192.168.12.2 to network 0.0.0.0

C    192.168.12.0/24 is directly connected, FastEthernet0/0
     1.0.0.0/32 is subnetted, 3 subnets
C       1.1.1.1 is directly connected, Loopback0
o*   0.0.0.0/0 [160/1] via 192.168.12.2, 00:00:36, FastEthernet0/0

r2#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 not set

C    192.168.12.0/24 is directly connected, FastEthernet0/0
     1.0.0.0/32 is subnetted, 3 subnets
o       1.1.1.1 [160/1] via 192.168.12.1, 00:00:07, FastEthernet0/0
     2.0.0.0/32 is subnetted, 1 subnets
C       2.2.2.2 is directly connected, Loopback0
     3.0.0.0/32 is subnetted, 1 subnets
o       3.3.3.3 [160/1] via 192.168.23.3, 00:00:19, FastEthernet1/0
C    192.168.23.0/24 is directly connected, FastEthernet1/0

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 192.168.23.2 to network 0.0.0.0

     3.0.0.0/32 is subnetted, 1 subnets
C       3.3.3.3 is directly connected, Loopback0
C    192.168.23.0/24 is directly connected, FastEthernet0/0
o*   0.0.0.0/0 [160/1] via 192.168.23.2, 00:00:41, FastEthernet0/0