思科跨路由器的单臂路由解决方法

【思科跨路由器的单臂路由解决方法】分享给互联网从爱好者学习参考。

  思科跨路由器的单臂路由解决的方法

  R1配置:

  R1#conf t

  R1(config)#int f0/0

  R1(config-if)#no shutdown

  R1(config-if)#int f0/0.2

  R1(config-subif)#encapsulation dot1q 2

  R1(config-subif)#ip address 192.168.2.254 255.255.255.0

  R1(config-subif)#no shutdown

  R1(config-subif)#exit

  R1(config)#int f0/0.3

  R1(config-subif)#encapsulation dot1q 3

  R1(config-subif)#ip address 192.168.3.254 255.255.255.0

  R1(config-subif)#no shutdown

  R1(config-subif)#exit

  R1(config)#int s1/0

  R1(config-if)#ip address 1.1.1.1 255.255.255.0

  R1(config-if)#no shutdown

  R1(config-if)#end

  R1#conf t

  R1(config)#router ospf 1

  R1(config-router)#network 192.168.2.0 0.0.0.255 area 0

  R1(config-router)#network 192.168.3.0 0.0.0.255 are 0

  R1(config-router)#network 1.1.1.0 0.0.0.255 area 0

  R1(config-router)#end

  R2配置:

  R2#conf t

  R2(config)#int s0/0

  R2(config-if)#ip address 1.1.1.2 255.255.255.0

  R2(config-if)#no shutdown

  R2(config-if)#clock rate 64000

  R2(config-if)#exit

  R2(config)#int s0/1

  R2(config-if)#ip address 2.1.1.1 255.255.255.0

  R2(config-if)#no shutdown

  R2(config-if)#clock rate 64000

  R2(config-if)#end

  R2#conf t

  R2(config)#router ospf 2

  R2(config-router)#network 2.1.1.0 0.0.0.255 area 0

  R2(config-router)#network 1.1.1.0 0.0.0.255 area 0

  R2(config-router)#end

  R3配置:

  R3#conf t

  R3(config)#int s1/0

  R3(config-if)#ip address 2.1.1.2 255.255.255.0

  R3(config-if)#no shutdown

  R3(config)#int f0/0

  R3(config-if)#no shutdown

  R3(config-if)#int f0/0.2

  R3(config-subif)#encapsulation dot1q 2

  R3(config-subif)#ip address 172.16.2.254 255.255.255.0

  R3(config-subif)#no shutdown

  R3(config-subif)#exit

  R3(config)#int f0/0.3

  R3(config-subif)#encapsulation dot1q 3

  R3(config-subif)#ip address 172.16.3.254 255.255.255.0

  R3(config-subif)#no shutdown

  R3(config-subif)#end

  R3(config)#router ospf 3

  R3(config-router)#network 172.16.2.0 0.0.0.255 area 0

  R3(config-router)#network 172.16.3.0 0.0.0.255 area 0

  R3(config-router)#network 2.1.1.0 0.0.0.255 area 0

  R3(config-router)#end

  查看路由表:

  R1#show ip route

  Gateway of last resort is not set

  1.0.0.0/24 is subnetted, 1 subnets

  C 1.1.1.0 is directly connected, Serial1/0

  2.0.0.0/24 is subnetted, 1 subnets

  O 2.1.1.0 [110/128] via 1.1.1.2, 00:03:37, Serial1/0

  172.16.0.0/24 is subnetted, 2 subnets

  O 172.16.2.0 [110/129] via 1.1.1.2, 00:03:37, Serial1/0

  O 172.16.3.0 [110/129] via 1.1.1.2, 00:03:37, Serial1/0

  C 192.168.2.0/24 is directly connected, FastEthernet0/0.2

  C 192.168.3.0/24 is directly connected, FastEthernet0/0.3

  R2#show ip route

  Gateway of last resort is not set

  1.0.0.0/24 is subnetted, 1 subnets

  C 1.1.1.0 is directly connected, Serial0/0

  2.0.0.0/24 is subnetted, 1 subnets

  C 2.1.1.0 is directly connected, Serial0/1

  172.16.0.0/24 is subnetted, 2 subnets

  O 172.16.2.0 [110/65] via 2.1.1.2, 00:03:37, Serial0/1

  O 172.16.3.0 [110/65] via 2.1.1.2, 00:03:37, Serial0/1

  O 192.168.2.0/24 [110/65] via 1.1.1.1, 00:03:37, Serial0/0

  O 192.168.3.0/24 [110/65] via 1.1.1.1, 00:03:37, Serial0/0

  R3#show ip route

  Gateway of last resort is not set

  1.0.0.0/24 is subnetted, 1 subnets

  O 1.1.1.0 [110/128] via 2.1.1.1, 00:03:43, Serial1/0

  2.0.0.0/24 is subnetted, 1 subnets

  C 2.1.1.0 is directly connected, Serial1/0

  172.16.0.0/24 is subnetted, 2 subnets

  C 172.16.2.0 is directly connected, FastEthernet0/0.2

  C 172.16.3.0 is directly connected, FastEthernet0/0.3

  O 192.168.2.0/24 [110/129] via 2.1.1.1, 00:03:43, Serial1/0

  O 192.168.3.0/24 [110/129] via 2.1.1.1, 00:03:43, Serial1/0

  SW1配置:

  SW1#vlan database

  SW1(vlan)#vlan 2

  SW1(vlan)#vlan 3

  SW1(vlan)#exit

  SW1#conf t

  SW1(config)#int f0/15

  SW1(config-if)#switchport mode trunk

  SW1(config-if)#switchport trunk encapsulation dot1q

  SW1(config-if)#exit

  SW1(config)#int f0/2

  SW1(config-if)#switchport mode access

  SW1(config-if)#switchport access vlan 2

  SW1(config-if)#exit

  SW1(config)#int f0/3

  SW1(config-if)#switchport mode access

  SW1(config-if)#switchport access vlan 3

  SW1(config-if)#end

  SW2配置:

  SW2#vlan database

  SW2(vlan)#vlan 2

  SW2(vlan)#vlan 3

  SW2(vlan)#exit

  SW2#conf t

  SW2(config)#int f0/15

  SW2(config-if)#switchport mode trunk

  SW2(config-if)#switchport trunk encapsulation dot1q

  SW2(config-if)#exit

  SW2(config)#int f0/2

  SW2(config-if)#switchport access vlan 2

  SW2(config-if)#exit

  SW2(config)#int f0/3

  SW2(config-if)#switchport mode access

  SW2(config-if)#switchport access vlan 3

  SW2(config-if)#end

  验证:

  PC1:

  PC1#ping 192.168.3.3

  Type escape sequence to abort.

  Sending 5, 100-byte ICMP Echos to 192.168.3.3, timeout is 2 seconds:

  !!!!!

  Success rate is 100 percent (5/5), round-trip min/avg/max = 188/246/300 ms

  PC1#ping 172.16.2.2

  Type escape sequence to abort.

  Sending 5, 100-byte ICMP Echos to 172.16.2.2, timeout is 2 seconds:

  !!!!!

  Success rate is 100 percent (5/5), round-trip min/avg/max = 408/487/528 ms

  PC1#ping 172.16.3.3

  Type escape sequence to abort.

  Sending 5, 100-byte ICMP Echos to 172.16.3.3, timeout is 2 seconds:

  !!!!!

  Success rate is 100 percent (5/5), round-trip min/avg/max = 384/441/492 ms

  PC3:

  PC3#ping 172.16.3.3

  Type escape sequence to abort.

  Sending 5, 100-byte ICMP Echos to 172.16.3.3, timeout is 2 seconds:

  !!!!!

  Success rate is 100 percent (5/5), round-trip min/avg/max = 168/258/348 ms

  PC3#ping 192.168.2.2

  Type escape sequence to abort.

  Sending 5, 100-byte ICMP Echos to 192.168.2.2, timeout is 2 seconds:

  !!!!!

  Success rate is 100 percent (5/5), round-trip min/avg/max = 348/400/452 ms

  PC3#ping 192.168.3.3

  Type escape sequence to abort.

  Sending 5, 100-byte ICMP Echos to 192.168.3.3, timeout is 2 seconds:

  !!!!!

  Success rate is 100 percent (5/5), round-trip min/avg/max = 312/396/516 ms

思科跨路由器的单臂路由解决方法