A-A+
思科默认路由以及浮动路由网络胡同的配置
要求:网络互通(且每台路由都有一个虚拟接口)。每台路由上有一条浮动路由。
首先给两台PC配置同网段IP:
- VPCS[1]> ip 192.168.1.10 192.168.1.1
- PC1 : 192.168.1.10 255.255.255.0 gateway 192.168.1.1
- VPCS[1]> 2
- VPCS[2]> ip 192.168.1.20 192.168.1.1
- PC2 : 192.168.1.20 255.255.255.0 gateway 192.168.1.1
- VPCS[2]> ping 192.168.1.10
- 192.168.1.10 icmp_seq=1 ttl=64 time=31.000 ms
- 192.168.1.10 icmp_seq=2 ttl=64 time=32.000 ms
- 192.168.1.10 icmp_seq=3 ttl=64 time=31.000 ms
- 192.168.1.10 icmp_seq=4 ttl=64 time=31.000 ms
- 192.168.1.10 icmp_seq=5 ttl=64 time=31.000 ms
给各个路由配IP和虚拟接口:
- R1
- Interface IP-Address OK? Method Status Protocol
- FastEthernet0/0 192.168.1.1 YES manual up up
- FastEthernet0/1 12.0.0.1 YES manual up up
- FastEthernet1/0 13.0.0.1 YES manual up up
- Loopback0 1.1.1.1 YES manual up up
- R2
- Interface IP-Address OK? Method Status Protocol
- FastEthernet0/0 12.0.0.2 YES manual up up
- FastEthernet0/1 23.0.0.2 YES manual up up
- Loopback0 2.2.2.2 YES manual up up
- R3
- Interface IP-Address OK? Method Status Pr otocol
- FastEthernet0/0 23.0.0.3 YES manual up up
- FastEthernet0/1 unassigned YES unset up up
- Loopback0 3.3.3.3 YES manual up up
给每个路由做自身所不知道的静态路由:
- R1
- ip route 2.2.2.0 255.255.255.0 12.0.0.2
- ip route 2.2.2.0 255.255.255.0 13.0.0.3
- ip route 3.3.3.0 255.255.255.0 12.0.0.2
- ip route 3.3.3.0 255.255.255.0 13.0.0.3
- ip route 23.0.0.0 255.255.255.0 12.0.0.2
- ip route 23.0.0.0 255.255.255.0 13.0.0.3
- R2
- ip route 1.1.1.0 255.255.255.0 12.0.0.1
- ip route 1.1.1.0 255.255.255.0 23.0.0.3
- ip route 3.3.3.0 255.255.255.0 12.0.0.1
- ip route 3.3.3.0 255.255.255.0 23.0.0.3
- ip route 13.0.0.0 255.255.255.0 12.0.0.1
- ip route 13.0.0.0 255.255.255.0 23.0.0.3
- #ip route 192.168.1.0 255.255.255.0 12.0.0.1
- R3
- ip route 1.1.1.0 255.255.255.0 13.0.0.1
- ip route 1.1.1.0 255.255.255.0 23.0.0.2
- ip route 2.2.2.0 255.255.255.0 13.0.0.1
- ip route 2.2.2.0 255.255.255.0 23.0.0.2
- ip route 12.0.0.0 255.255.255.0 13.0.0.1
- ip route 12.0.0.0 255.255.255.0 23.0.0.2
- ip route 192.168.1.0 255.255.255.0 13.0.0.1
到达每个目标都有了两条路可以走,设浮动路由:
R1(config)#ip route 3.3.3.0 255.255.255.0 12.0.0.2 10 (都类似)
最后检验:
- VPCS[2]> ping 12.0.0.2
- 12.0.0.2 icmp_seq=1 ttl=254 time=125.000 ms
- 12.0.0.2 icmp_seq=2 ttl=254 time=93.000 ms
- 12.0.0.2 icmp_seq=3 ttl=254 time=94.000 ms
- 12.0.0.2 icmp_seq=4 ttl=254 time=78.000 ms
- 12.0.0.2 icmp_seq=5 ttl=254 time=94.000 ms
- VPCS[2]> ping 2.2.2.2
- 2.2.2.2 icmp_seq=1 ttl=254 time=93.000 ms
- 2.2.2.2 icmp_seq=2 ttl=254 time=94.000 ms
- 2.2.2.2 icmp_seq=3 ttl=254 time=109.000 ms
- 2.2.2.2 icmp_seq=4 ttl=254 time=93.000 ms
- 2.2.2.2 icmp_seq=5 ttl=254 time=125.000 ms
R1和R3也可作默认路由,因为做过浮动路由后,只有一条路生效,所以可看做是单出口.