A-A+
单臂路由+VLAN+trunk的组网和配置命令行
这个单臂路由+VLAN+trunk的组网是比较简单树状型结构，一台路由R1连接交换机SW1，SW1连接两台PC客户端（c1和c2）和sw2，而sw2又连接两台PC客户端（c3和c4）.
valn配置命令如下:
- Sw1(config)#valn 10 //创建vlan ID号
- Sw1(config-vlan)#name xiaohang //命名vlan名
- Sw1(config)#no vlan 10 //删除vlan
- Sw1(config)#interface fastEthernet1/1 //选择分配端口
- Sw1(config)#interface range fastEthernet 1/1 -5 //同时还分配多个端口
- Sw1(config-if)#switchport mode access //定义二层端口模式(思科设备默认就是二层端口模式，可省略)
- Sw1(config-if)#switchport access vlan 10 //把端口加入vlan
- sw1(config)#default interface fastEthernet 1/1 //还原接口到默认配置状态
- sw2#show vlan-switch brief //查看vlan信息
trunk配置命令
sw1(config)#interface fastEthernet 1/15 //进接口
sw1(config-if)#switchport mode trunk //配置接口为trunk
sw1(config-if)#switchport trunk allowed vlan remove 10 //从trunk中删除某个vlan
sw1(config-if)#switchport trunk allowed vlan add 10 //从trunk中添加某个vlan
sw1#show interfaces fastEthernet 1/15 switchport //查看接口类型
单臂路由配置命令： --------------------
R1(config)#interface fastEthernet 0/0.10 //进子接口
R1(config-subif)#encapsulation dot1Q 10 //封装
R1(config-subif)#ip address 192.168.1.1 255.255.255.0 //配IP掩码
例题:
sw1 配置命令行如下：------------------
- !
- no ip routing
- vlan 10
- valn 20
- !
- interface FastEthernet1/1
- switchport access vlan 10
- !
- interface FastEthernet1/2
- switchport access vlan 20
- !
- interface FastEthernet1/15
- switchport mode trunk
- !
- interface FastEthernet1/0
- switchport mode trunk
Sw2 配置如下：-----------------------
- !
- no ip routing
- !
- valn 10
- valn 20
- !
- interface FastEthernet1/3
- switchport access vlan 10
- !
- interface FastEthernet1/4
- switchport access vlan 20
- !
- interface FastEthernet1/15
- switchport mode trunk
R1 配置如下： ----------------------------
- !
- interface FastEthernet0/0.10
- encapsulation dot1Q 10
- ip address 192.168.1.1 255.255.255.0
- !
- interface FastEthernet0/0.20
- encapsulation dot1Q 20
- ip address 192.168.2.1 255.255.255.0
- !