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| 使用思科3640实现不同网段通讯 
 
   
 R1-->3600(当做交换机使用) R2->PC(当做pc使用) R3-->PC(当做pc使用)
 
 R1的配置
 
 R1#vlan database
 
 R1(vlan)#vlan 2
 
 R1(vlan)#apply
 
 R1#conf t
 
 Enter configuration commands, one per line. End with CNTL/Z.
 
 R1(config)#int vlan 2
 
 R1(config-if)#ip address 192.168.10.1 255.255.255.0
 
 R1(config-if)#ip address192.168.20.1 255.255.255.0secondary //可以配置多个seconday
 
 R1(config-if)#ip address 192.168.30.1 255.255.255.0 secondary
 
 R1(config)#int f0/2
 
 R1(config-if)#switchport access vlan 2
 
 R1(config)#int f0/3
 
 R1(config-if)#switchport access vlan 2
 
 R2充当pc
 
 R2#vlan database
 
 R2(vlan)#vlan 2
 
 R2(vlan)#apply
 
 R2#conf t
 
 Enter configuration commands, one per line. End with CNTL/Z.
 
 R2(config)#int vlan 2
 
 R2(config-if)#ip address 192.168.10.1 255.255.255.0
 
 R2(config)#int f0/2
 
 R2(config-if)#switchport access vlan 2
 
 R3充当pc
 
 R3#vlan database
 
 R3(vlan)#vlan 2
 
 R3(vlan)#apply
 
 R3#conf t
 
 Enter configuration commands, one per line. End with CNTL/Z.
 
 R3(config)#int vlan 2
 
 R3(config-if)#ip address 192.168.20.1 255.255.255.0
 
 R3(config)#int f0/3
 
 R3(config-if)#switchport access vlan 2
 
 
 
 在R2 上 ping R3
 
 R2#ping 192.168.20.1
 
 Type escape sequence to abort.
 
 Sending 5, 100-byte ICMP Echos to 192.168.20.1, timeout is 2 seconds:
 
 !!!!!
 
 Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
 
 如果R2是pc,ip 配置192.168.10.2/24 网关:192.168.10.1
 
 如果R3是pc,ip 配置192.168.20.2/24 网关:192.168.20.1
 
 使用GNS3模拟器错误注意:line protocol is down (模拟器上这个实验做不成。)
 
 必须先把所有线连好,设备的各种模块都插到槽中就位,然后启动路由、交换机设备就可以解决line protocol is down问题了。
 
 
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