# DHCP + VLAN

![image-20240823172337746](https://picgo-noriu.oss-cn-beijing.aliyuncs.com/Images/image-20240823172337746.png)

### 一、配置二层交换机

- **SW2**

  ```
  <Huawei>u t m
  <Huawei>sys
  [Huawei]sys SW2
  [SW2]vlan 10
  [SW2-vlan10]port-group 1
  [SW2-port-group-1]group-member g0/0/2 g0/0/3
  [SW2-port-group-1]port link-type access 
  [SW2-port-group-1]port default vlan 10
  [SW2-port-group-1]quit
  [SW2]int g0/0/1 
  [SW2-GigabitEthernet0/0/1]port link-type trunk 
  [SW2-GigabitEthernet0/0/1]port trunk allow-pass vlan all
  [SW2-GigabitEthernet0/0/1]return
  <SW2>save
  ```

- **SW3**

  ```
  <Huawei>u t m
  <Huawei>sys
  [Huawei]sys SW3
  [SW3]vlan 20
  [SW3-vlan20]port-group 1
  [SW3-port-group-1]group-member g0/0/2 g0/0/3
  [SW3-port-group-1]port link-type access 
  [SW3-port-group-1]port default vlan 20
  [SW3-port-group-1]quit
  [SW3]int g0/0/1
  [SW3-GigabitEthernet0/0/1]port link-type trunk 
  [SW3-GigabitEthernet0/0/1]port trunk allow-pass vlan all
  [SW3-GigabitEthernet0/0/1]return
  <SW3>save
  ```

### 二、配置三层交换机

- **SW1**

  ```
  <Huawei>u t m
  <Huawei>sys
  [Huawei]sys SW1
  [SW1]port-group 1
  [SW1-port-group-1]group-member g0/0/1 g0/0/2 
  [SW1-port-group-1]port link-type trunk
  [SW1-port-group-1]port trunk allow-pass vlan all
  [SW1-port-group-1]quit
  [SW1]ip policy-based-route  
  [SW1]ip pool vlan10
  [SW1-ip-pool-vlan10]network 192.168.10.0 mask 24
  [SW1-ip-pool-vlan10]gateway-list 192.168.10.254
  [SW1-ip-pool-vlan10]dns-list 223.5.5.5 223.6.6.6
  [SW1-ip-pool-vlan10]quit
  [SW1]ip pool vlan20
  [SW1-ip-pool-vlan20]network 192.168.20.0 mask 24
  [SW1-ip-pool-vlan20]gateway-list 192.168.20.254
  [SW1-ip-pool-vlan20]dns-list 223.5.5.5 223.6.6.6
  [SW1-ip-pool-vlan20]quit
  [SW1]dhcp enable
  [SW1]vlan batch 10 20
  [SW1]int vlanif 10
  [SW1-Vlanif10]ip a 192.168.10.254 24
  [SW1-Vlanif10]dhcp select global
  [SW1-Vlanif10]int vlanif 20
  [SW1-Vlanif20]ip a 192.168.20.254 24
  [SW1-Vlanif20]dhcp select global
  [SW1-Vlanif20]return
  <SW1>save
  ```