cisco路由器静态路由实验
cisco路由器静态路由实验
拓扑图如下：
静态路由实验.jpg (59.43 KB)
2011-6-1 20:58
配置如下：
R1:
interface FastEthernet0/0
ip address 192.168.2.1 255.255.255.0
duplex auto
speed auto
interface Serial1/1
ip address 192.168.1.1 255.255.255.0
ip classless
ip route 192.168.7.0 255.255.255.0 192.168.1.2
ip route 192.168.6.0 255.255.255.0 192.168.1.2
ip route 192.168.3.0 255.255.255.0 192.168.1.2
ip route 192.168.4.0 255.255.255.0 192.168.1.2
ip route 192.168.5.0 255.255.255.0 192.168.1.2
R2:
interface Serial1/0
ip address 192.168.3.1 255.255.255.0
!
interface Serial1/1
ip address 192.168.1.2 255.255.255.0
clock rate 64000
!
interface Serial1/2
ip address 192.168.4.1 255.255.255.0
!ip classless
ip route 192.168.7.0 255.255.255.0 192.168.4.2
ip route 192.168.6.0 255.255.255.0 192.168.3.2
ip route 192.168.2.0 255.255.255.0 Serial1/1
ip route 192.168.5.0 255.255.255.0 192.168.3.2
R3:
interface Serial1/0
ip address 192.168.3.2 255.255.255.0
clock rate 64000
!
interface Serial1/1
ip address 192.168.5.1 255.255.255.0
ip classless
ip route 192.168.7.0 255.255.255.0 192.168.3.1
ip route 192.168.6.0 255.255.255.0 192.168.5.2
ip route 192.168.2.0 255.255.255.0 192.168.3.1
ip route 192.168.4.0 255.255.255.0 192.168.3.1
ip route 192.168.1.0 255.255.255.0 192.168.3.1
R4:
interface FastEthernet0/0
ip address 192.168.6.1 255.255.255.0
duplex auto
speed auto
interface Serial1/1
ip address 192.168.5.2 255.255.255.0
clock rate 64000
ip classless
ip route 192.168.7.0 255.255.255.0 192.168.5.1
ip route 192.168.2.0 255.255.255.0 192.168.5.1
ip route 192.168.1.0 255.255.255.0 192.168.5.1
ip route 192.168.3.0 255.255.255.0 192.168.5.1
ip route 192.168.4.0 255.255.255.0 192.168.5.1
R5:
interface FastEthernet0/0
ip address 192.168.7.1 255.255.255.0
duplex auto
speed auto
interface Serial1/2
ip address 192.168.4.2 255.255.255.0
clock rate 64000
ip classless
ip route 192.168.2.0 255.255.255.0 192.168.4.1
ip route 192.168.6.0 255.255.255.0 192.168.4.1
ip route 192.168.1.0 255.255.255.0 192.168.4.1
ip route 192.168.3.0 255.255.255.0 192.168.4.1
ip route 192.168.5.0 255.255.255.0 192.168.4.1
以上为各路由器的配置，实现了全网各个点都可以互相ping通。
通过这次实验，总结出了一个经验，就是路由器需要配置的静态路由条目=全网不同ip地址段的和 - 与之相连的链路条数。上述结论是基于全网各个点互相ping通的基础。如果是仅仅终端能互相ping通，则各个路由器的静态路由条目要少一点。
就上述拓扑图而言，R1、R4、R5各添加2条，R2、R3各添加3条就可以实现三台PC之间的ping通。即，末端路由器的静态路由条目=末端中端路由器数目 -1。中间的路由器的路由条目=末端路由器的个数。
上述结论是自己根据自己的拓扑图得出的结论，不知道这个结论是否成立，期待高手给予解答。
本文出自 “边缘区域” 博客，谢绝转载！