路由器Corp 配置
Corp(config)#ip route 192.168.20.0 255.255.255.0 10.1.3.2 150
Corp(config)#ip route 192.168.10.0 255.255.255.0 10.1.2.2 150
Corp(config)#ip route 192.168.30.0 255.255.255.0 10.1.4.2 150
Corp(config)#ip route 192.168.40.0 255.255.255.0 10.1.4.2 150
Corp(config)#ip route 172.16.10.0 255.255.255.0 10.1.5.2 150
Corp(config)#do sh run | begin ip route
ip route 192.168.20.0 255.255.255.0 10.1.3.2 150
ip route 192.168.10.0 255.255.255.0 10.1.2.2 150
ip route 192.168.30.0 255.255.255.0 10.1.4.2 150
ip route 192.168.40.0 255.255.255.0 10.1.4.2 150
ip route 172.16.10.0 255.255.255.0 10.1.5.2 150
路由器R1配置
R1(config)#ip route 10.1.1.0 255.255.255.0 10.1.2.1 150
R1(config)#ip route 10.1.4.0 255.255.255.0 10.1.3.1 150
R1(config)#ip route 10.1.5.0 255.255.255.0 10.1.2.1 150
R1(config)#ip route 192.168.30.0 255.255.255.0 10.1.3.1 150
R1(config)#ip route 192.168.40.0 255.255.255.0 10.1.2.1 150
R1(config)#ip route 172.16.10.0 255.255.255.0 10.1.3.1 150
R1(config)#do sh run | begin ip route
ip route 10.1.1.0 255.255.255.0 10.1.2.1 150
ip route 10.1.4.0 255.255.255.0 10.1.3.1 150
ip route 10.1.5.0 255.255.255.0 10.1.2.1 150
ip route 192.168.30.0 255.255.255.0 10.1.3.1 150
ip route 192.168.40.0 255.255.255.0 10.1.2.1 150
ip route 172.16.10.0 255.255.255.0 10.1.3.1 150
R1(config)#do sh ip rout
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, 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
10.0.0.0/24 is subnetted, 5 subnets
S 10.1.1.0 [150/0] via 10.1.2.1
C 10.1.2.0 is directly connected, Serial0/0/0
C 10.1.3.0 is directly connected, Serial0/0/1
S 10.1.4.0 [150/0] via 10.1.3.1
S 10.1.5.0 [150/0] via 10.1.2.1
172.16.0.0/24 is subnetted, 1 subnets
S 172.16.10.0 [150/0] via 10.1.3.1
C 192.168.10.0/24 is directly connected, FastEthernet0/0
C 192.168.20.0/24 is directly connected, FastEthernet0/1
S 192.168.30.0/24 [150/0] via 10.1.3.1
S 192.168.40.0/24 [150/0] via 10.1.2.1
路由器R2的配置
R2(config)#ip route 10.1.1.0 255.255.255.0 10.1.4.1 150
R2(config)#ip route 10.1.2.0 255.255.255.0 10.1.4.1 150
R2(config)#ip route 10.1.3.0 255.255.255.0 10.1.4.1 150
R2(config)#ip route 10.1.5.0 255.255.255.0 10.1.4.1 150
R2(config)#ip route 192.168.10.0 255.255.255.0 10.1.4.1 150
R2(config)#ip route 192.168.20.0 255.255.255.0 10.1.4.1 150
R2(config)#ip route 172.16.10.0 255.255.255.0 10.1.4.1 150
R2(config)#do sh run | begin ip route
ip route 10.1.1.0 255.255.255.0 10.1.4.1 150
ip route 10.1.2.0 255.255.255.0 10.1.4.1 150
ip route 10.1.3.0 255.255.255.0 10.1.4.1 150
ip route 10.1.5.0 255.255.255.0 10.1.4.1 150
ip route 192.168.10.0 255.255.255.0 10.1.4.1 150
ip route 192.168.20.0 255.255.255.0 10.1.4.1 150
ip route 172.16.10.0 255.255.255.0 10.1.4.1 150
R2(config)#do sh ip rou
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, 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
10.0.0.0/24 is subnetted, 5 subnets
S 10.1.1.0 [150/0] via 10.1.4.1
S 10.1.2.0 [150/0] via 10.1.4.1
S 10.1.3.0 [150/0] via 10.1.4.1
C 10.1.4.0 is directly connected, Serial0/0/0
S 10.1.5.0 [150/0] via 10.1.4.1
172.16.0.0/24 is subnetted, 1 subnets
S 172.16.10.0 [150/0] via 10.1.4.1
S 192.168.10.0/24 [150/0] via 10.1.4.1
S 192.168.20.0/24 [150/0] via 10.1.4.1
C 192.168.30.0/24 is directly connected, FastEthernet0/0
C 192.168.40.0/24 is directly connected, FastEthernet0/1
路由器R3的配置
R3(config)#ip route 10.1.1.0 255.255.255.0 f0/0 150
R3(config)#ip route 10.1.2.0 255.255.255.0 f0/0 150
R3(config)#ip route 10.1.3.0 255.255.255.0 f0/0 150
R3(config)#ip route 10.1.4.0 255.255.255.0 f0/0 150
R3(config)#ip route 192.168.10.0 255.255.255.0 f0/0 150
R3(config)#ip route 192.168.20.0 255.255.255.0 f0/0 150
R3(config)#ip route 192.168.30.0 255.255.255.0 f0/0 150
R3(config)#ip route 192.168.40.0 255.255.255.0 f0/0 150
R3(config)#do sh run | begin ip rout
ip route 10.1.1.0 255.255.255.0 FastEthernet0/0 150 / * 注：此处的FastEthernet 0/0端口为R3的端口 而不是Corp路由端口/
ip route 10.1.2.0 255.255.255.0 FastEthernet0/0 150
ip route 10.1.3.0 255.255.255.0 FastEthernet0/0 150
ip route 10.1.4.0 255.255.255.0 FastEthernet0/0 150
ip route 192.168.10.0 255.255.255.0 FastEthernet0/0 150
ip route 192.168.20.0 255.255.255.0 FastEthernet0/0 150
ip route 192.168.30.0 255.255.255.0 FastEthernet0/0 150
ip route 192.168.40.0 255.255.255.0 FastEthernet0/0 150
Gateway of last resort is not set
10.0.0.0/24 is subnetted, 5 subnets
S 10.1.1.0 is directly connected, FastEthernet0/0
S 10.1.2.0 is directly connected, FastEthernet0/0
S 10.1.3.0 is directly connected, FastEthernet0/0
S 10.1.4.0 is directly connected, FastEthernet0/0
C 10.1.5.0 is directly connected, FastEthernet0/0
172.16.0.0/24 is subnetted, 1 subnets
C 172.16.10.0 is directly connected, Dot11Radio0/3/0
S 192.168.10.0/24 is directly connected, FastEthernet0/0
S 192.168.20.0/24 is directly connected, FastEthernet0/0
S 192.168.30.0/24 is directly connected, FastEthernet0/0
S 192.168.40.0/24 is directly connected, FastEthernet0/0
默认路由选择 （e.g. 将R3设置为根路由）
R3(config)#no ip route 10.1.1.0 255.255.255.0
R3(config)#no ip route 10.1.2.0 255.255.255.0
R3(config)#no ip route 10.1.3.0 255.255.255.0
R3(config)#no ip route 10.1.4.0 255.255.255.0
R3(config)#no ip route 192.168.10.0 255.255.255.0
R3(config)#no ip route 192.168.20.0 255.255.255.0
R3(config)#no ip route 192.168.30.0 255.255.255.0
R3(config)#no ip route 192.168.40.0 255.255.255.0
R3(config)#do sh ip
sh ip
% Incomplete command.
R3(config)#do sh ip rout
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, 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 10.1.5.1 to network 0.0.0.0
10.0.0.0/24 is subnetted, 1 subnets
C 10.1.5.0 is directly connected, FastEthernet0/0
172.16.0.0/24 is subnetted, 1 subnets
C 172.16.10.0 is directly connected, Dot11Radio0/3/0
S* 0.0.0.0/0 [1/0] via 10.1.5.1
R3(config)#ip route 0.0.0.0 0.0.0.0 10.1.5.1
R3(config)#ip classless
R3(config)#do sh ip rout
10.0.0.0/24 is subnetted, 1 subnets
C 10.1.5.0 is directly connected, vlan 1
172.16.0.0/24 is subnetted, 1 subnets
C 172.16.10.0 is directly connected, Dot11Radio0/3/0
S* 0.0.0.0/0 [1/0] via 10.1.5.1
is directly connected, FastEthernet0/0 /*注：默认路由 10.1.5.1为下一跳ip fastEthernet 0/0为R3出端口/