静态路由
一、 前期配置
1.PC1：172.16.1.10 255.255.255.0 172.16.1.254
PC2：172.16.2.20 255.255.255.0 172.16.2.254
PC3：172.16.3.30 255.255.255.0 172.16.3.254
2.路由器R1：F0/0 172.16.1.254 S1/0 10.7.1.1
LoopBack 0 192.168.1.254
路由器R2：F0/0 172.16.2.254 S1/1 10.7.1.2 S1/0 10.7.2.1
LoopBack 0 192.168.2.254
路由器R3：F0/0 172.16.3.254 S1/1 10.7.
2.2 LoopBack 0 192.168.3.254
二、各路由器的具體配置
R1的配置
Router>en
Router#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#hostname R1
R1(config)#int f0/0
R1(config-if)#ip add 172.16.1.254 255.255.255.0
R1(config-if)#no sh
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
R1(config-if)#exit
R1(config)#int loopback 0
----進入loopback
%LINK-5-CHANGED: Interface Loopback0, changed state to up
R1(config-if)#ip add 192.168.1.254 255.255.255.0 ----配置路由器的管理IP
R1(config-if)#no sh
R1(config-if)#int s1/0
R1(config-if)#ip add 10.7.1.1 255.255.255.0
R1(config-if)#clock rate 64000
R1(config-if)#no sh
%LINK-5-CHANGED: Interface Serial1/0, changed state to down
R1(config-if)#exit
R1(config)#ip route 192.168.3.0 255.255.255.0 10.7.1.2
R1(config)#ip route 172.16.3.0 255.255.255.0 10.7.1.2
R1(config)#ip route 10.7.2.0 255.255.255.0 10.7.1.2
R1(config)#ip route 192.168.2.0 255.255.255.0 10.7.1.2
----配置靜態路由
R1(config)#exit
R2的配置
Router>en
Router#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#hostname R2
R2(config)#int f0/0
R2(config-if)#ip add 172.16.2.254 255.255.255.0
R2(config-if)#no sh
%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
R2(config-if)#exit
R2(config)#int loopback 0
%LINK-5-CHANGED: Interface Loopback0, changed state to up
R2(config-if)#ip add 192.168.2.254 255.255.255.0
R2(config-if)#no sh
R2(config-if)#exit
R2(config)#int s1/1
R2(config-if)#ip add 10.7.1.2 255.255.255.0
R2(config-if)#no sh
%LINK-5-CHANGED: Interface Serial1/1, changed state to up
R2(config-if)#exit
R2(config)#int s1/0
R2(config-if)#ip add 10.7.2.1 255.255.255.0
R2(config-if)#no sh
R2(config-if)#exit
R2(config)#ip route 172.16.1.0 255.255.255.0 10.7.1.1
R2(config)#ip route 192.168.1.0 255.255.255.0 10.7.1.1
R2(config)#ip route 172.16.3.0 255.255.255.0 10.7.2.2
R2(config)#ip route 192.168.3.0 255.255.255.0 10.7.2.2
R2(config)#exit
R3的配置
Router>en
Router#config t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#hostname R3
R3(config)#int f0/0
R3(config-if)#ip add 172.16.3.254 255.255.255.0
R3(config-if)#no sh
R3(config-if)#exit
R3(config)#int loopback 0
R3(config-if)#ip add 192.168.3.254 255.255.255.0
R3(config-if)#no sh
R3(config-if)#exit
R3(config)#int s1/1
R3(config-if)#ip add 10.7.2.2 255.255.255.0
R3(config-if)#clock rate 64000
R3(config-if)#no sh
%LINK-5-CHANGED: Interface Serial1/1, changed state to up
R3(config-if)#exit
R3(config)#ip route 192.168.1.0 255.255.255.0 10.7.2.1
R3(config)#ip route 172.16.1.0 255.255.255.0 10.7.2.1
R3(config)#ip route 192.168.2.0 255.255.255.0 10.7.2.1
R3(config)#ip route 172.16.2.0 255.255.255.0 10.7.2.1
R3(config)#ip route 10.7.1.0 255.255.255.0 10.7.2.1
R3(config)#exit
三、 查看路由信息
R1#sh 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, 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, 2 subnets
C
10.7.1.0 is directly connected, Serial1/0
S
10.7.2.0 [1/0] via 10.7.1.2
172.16.0.0/24 is subnetted, 2 subnets
C
172.16.1.0 is directly connected, FastEthernet0/0
S
172.16.3.0 [1/0] via 10.7.1.2
C
192.168.1.0/24 is directly connected, Loopback0
S
192.168.2.0/24 [1/0] via 10.7.1.2
S
192.168.3.0/24 [1/0] via 10.7.1.2
四、 验证
用前期配置中的IP可以互相使用PING命令进行验证，如果有IP地址无法PING
说明配置有问题，需要查看配置信息。
**下面为配置静态路由的命令
ip route
配置或删除静态路由。
[ no ] ip route ip-address { mask | mask-length } { interfacce-name | gateway-address } [ preference preference-value ] [ reject | blackhole ] 【参数说明】
ip-address和mask为目的ip地址和掩码，点分十进制格式，由于要求掩码32位中‘1’必须是连续的，因此点分十进制格式的掩码可以用掩码长度mask-length来代替，掩码长度为掩码中连续‘1’的位数。
interfacce-name指定该路由的发送接口名，gateway-address为该路由的下一跳ip地址（点分十进制格式）。
preference-value为该路由的优先级别，范围0~255。
reject指明为不可达路由。
blackhole指明为黑洞路由。