交换机三层配置（思科）
1、网络规划
网络拓扑图
2、交换机配置
（1）交换机SW2_1配置
enable 进入特权模式
configure terminal 进入全局模式
hostname SW2_1
vlan 2 创建vlan 2
exit
vlan 3 创建 vlan 3
interface f 0/1 进入f0/1端口
no shutdown 开启端口
switchport mode access 配置端口为access
switchport access vlan 2
exit
interface f 0/2
no shutdown
switchport mode access
switchport access vlan 3
exit
interface f0/3
no shutdown
switchport mode trunk
(2)、交换机SW2_2配置
enable 进入特权模式
configure terminal 进入全局模式
hostname SW2_2
vlan 2 创建vlan 2
exit
vlan 3 创建 vlan 3
interface f 0/1 进入f0/1端口
no shutdown 开启端口
switchport mode access 配置端口为access
switchport access vlan 4
exit
interface f 0/2
no shutdown
switchport mode access
switchport access vlan 5
exit
interface f0/3
no shutdown
switchport mode trunk
（3)、交换机SW1配置
enable
configure terminal
hostname SW1
iprouting
vlan 2
exit
vlan 3
exit
vlan 4
exit
vlan 5
interface vlan 2
ip address 192.168.2.1 255.255.255.0
no shutdown
exit
interface vlan 3
ip address 192.168.3.1 255.255.255.0
no shutdown
interface vlan 4
ip address 192.168.4.1 255.255.255.0
no shutdown
exit
interface vlan 5
ip address 192.168.5.1 255.255.255.0
no shutdown
exit
结果截图
