定义:
静态路由是由网络管理员手动配置在路由器中的路由信息,它们不需要学习和交换,而是在路由器启动和/或配置更改时直接由管理员配置。静态路由通常在小型网络中使用,如家庭网络、小型企业网络等。
配置的方式方法:静态路由的内容包括目的网络、子网掩码、下一跳地址。目的网络是需要通信的网络或 IP 子网,子网掩码确定目的网络或 IP 子网的范围,下一跳地址指定到达目的网络或 IP 子网的下一个路由器或网关的 IP 地址。
下面通过拓扑图进行了解静态路由的通信和配置:
拓扑图:
二层交换路由可以不做任何配置
PC21的配置(要加网关):
AR1:
The device is running!
<Huawei>sy
Enter system view, return user view with Ctrl+Z.
[Huawei]sy R1 #修改设备名称
[R1]
[R1]
[R1]int g0/0/0 #配置端口网关
[R1-GigabitEthernet0/0/0]ip add 192.168.1.254 24
[R1-GigabitEthernet0/0/0]q
[R1]un in en
Info: Information center is disabled.
[R1]
[R1]int g0/0/1
[R1-GigabitEthernet0/0/1]ip add 192.168.12.1 24
[R1-GigabitEthernet0/0/1]q
[R1]ip route-static 192.168.2.0 24 192.168.12.2 ##配置静态路由,目标地址,子网掩码,下一跳
[R1]dis ip routing-table ##查看配置的静态路由表
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 11 Routes : 11
Destination/Mask Proto Pre Cost Flags NextHop Interface
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
192.168.1.0/24 Direct 0 0 D 192.168.1.254 GigabitEthernet
0/0/0
192.168.1.254/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
192.168.1.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
192.168.2.0/24 Static 60 0 RD 192.168.12.2 GigabitEthernet #出现静态路由的内容
0/0/1
192.168.12.0/24 Direct 0 0 D 192.168.12.1 GigabitEthernet
0/0/1
192.168.12.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
192.168.12.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
[R1]
[R1]ping 192.168.2.2 #跨路由进行通信
PING 192.168.2.2: 56 data bytes, press CTRL_C to break
Request time out
Request time out
Request time out
Request time out
Request time out
--- 192.168.2.2 ping statistics ---
5 packet(s) transmitted
0 packet(s) received
100.00% packet loss
AR2(和AR1同样配置):
The device is running!
<Huawei>sy
Enter system view, return user view with Ctrl+Z.
[Huawei]sy R2
[R2]int g0/0/1
[R2-GigabitEthernet0/0/1]ip add 192.168.12.2 24
[R2-GigabitEthernet0/0/1]int g0/0/0
[R2-GigabitEthernet0/0/0]ip add 192.168.2.254 24
[R2-GigabitEthernet0/0/0]q
[R2]un in en
Info: Information center is disabled.
[R2]
[R2]
[R2]ip route-static 192.168.1.0 24 192.168.12.1
[R2]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 11 Routes : 11
Destination/Mask Proto Pre Cost Flags NextHop Interface
127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0
127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
192.168.1.0/24 Static 60 0 RD 192.168.12.1 GigabitEthernet
0/0/1
192.168.2.0/24 Direct 0 0 D 192.168.2.254 GigabitEthernet
0/0/0
192.168.2.254/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
192.168.2.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
192.168.12.0/24 Direct 0 0 D 192.168.12.2 GigabitEthernet
0/0/1
192.168.12.2/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
192.168.12.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
[R2]ping 192.168.2.1
PING 192.168.2.1: 56 data bytes, press CTRL_C to break
Reply from 192.168.2.1: bytes=56 Sequence=1 ttl=128 time=120 ms
Reply from 192.168.2.1: bytes=56 Sequence=2 ttl=128 time=60 ms
Reply from 192.168.2.1: bytes=56 Sequence=3 ttl=128 time=40 ms
Reply from 192.168.2.1: bytes=56 Sequence=4 ttl=128 time=60 ms
Reply from 192.168.2.1: bytes=56 Sequence=5 ttl=128 time=40 ms
--- 192.168.2.1 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 40/64/120 ms