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思科跨路由器的单臂路由如何解决 思科跨路由器的单臂路由怎么

思科跨路由器的单臂路由如何解决 思科跨路由器的单臂路由怎么  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
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