华为交换机 DHCP中继全局不同网段配置

末蓝、 2022-05-21 06:41 612阅读 0赞

## 一、组网需求 ##

1、DHCP作为公司汇聚交换机，在上面配置DHCP全局地址池，然后接入交换机根据不同vlan会获取到不同网段IP地址。

2、网络拓扑

![70][]

## 二、操作步骤 ##

1、客户端

1）创建DHCP服务器组，并为DHCP服务器组添加DHCP服务器对应网段的网关IP

<Huawei>system-view 
    [Huawei]sysname Client
    [Client]dhcp server group dhcp1
    [Client-dhcp-server-group-dhcp1]dhcp-server 192.168.1.1
    [Client-dhcp-server-group-dhcp1]q
    
    [Client]dhcp server group dhcp2
    [Client-dhcp-server-group-dhcp2]dhcp-server  192.168.2.1
    [Client-dhcp-server-group-dhcp2]q

2）创建vlan

[Client]vlan batch 10 20

3）使能全局DHCP功能

[Client]dhcp enable

4）开启vlanif中继功能并配置接口IP，指定DHCP服务器。

[Client]interface  Vlanif 10
    [Client-Vlanif10]dhcp select relay 
    [Client-Vlanif10]ip address  192.168.1.2 24
    [Client-Vlanif10]dhcp relay server-select  dhcp1
    [Client-Vlanif10]q
    
    [Client]interface  Vlanif  20
    [Client-Vlanif20]dhcp select relay 
    [Client-Vlanif20]ip address  192.168.2.2 24
    [Client-Vlanif20]dhcp relay  server-select  dhcp2
    [Client-Vlanif20]q

5）配置接口

[Client]interface  GigabitEthernet  0/0/1
    [Client-GigabitEthernet0/0/1]port link-type trunk 
    [Client-GigabitEthernet0/0/1]port trunk  allow-pass vlan all 
    [Client-GigabitEthernet0/0/1]q
    
    [Client]interface  GigabitEthernet  0/0/2
    [Client-GigabitEthernet0/0/2]port link-type access  
    [Client-GigabitEthernet0/0/2]port default  vlan  10
    [Client-GigabitEthernet0/0/2]q
    
    [Client]interface  GigabitEthernet  0/0/3
    [Client-GigabitEthernet0/0/3]port link-type access  
    [Client-GigabitEthernet0/0/3]port default  vlan  20
    [Client-GigabitEthernet0/0/3]q

2、DHCP服务器

1）使能DHCP

<Huawei>system-view 
    [Huawei]sysname DHCP 
    [DHCP]dhcp enable

2）创建vlan，配置IP地址，并让vlan接口下的客户端从全局地址池中获取IP

[DHCP]vlan batch 10 20
    	
    [DHCP]interface  Vlanif 10
    [DHCP-Vlanif10]ip address  192.168.1.1 24
    [DHCP-Vlanif10]dhcp select global 
    [DHCP-Vlanif10]q
    
    [DHCP]interface Vlanif 20
    [DHCP-Vlanif20]ip address  192.168.2.1 24
    [DHCP-Vlanif20]dhcp select global 
    [DHCP-Vlanif20]q

3）配置全局地址池

[DHCP]ip pool 1
    [DHCP-ip-pool-1]network 192.168.1.0 mask  24
    [DHCP-ip-pool-1]gateway-list 192.168.1.1
    [DHCP-ip-pool-1]lease day 1
    [DHCP-ip-pool-1]q
    
    [DHCP]ip pool 2
    [DHCP-ip-pool-2]network 192.168.2.0 mask  24
    [DHCP-ip-pool-2]gateway-list  192.168.2.1 
    [DHCP-ip-pool-2]lease day 1
    [DHCP-ip-pool-2]q

4）配置接口

[DHCP]interface  GigabitEthernet  0/0/1
    [DHCP-GigabitEthernet0/0/1]port link-type trunk 
    [DHCP-GigabitEthernet0/0/1]port trunk allow-pass vlan  all 
    [DHCP-GigabitEthernet0/0/1]q

3、验证

1）PC设置自动获取IP

![70 1][]

2）ping测试

![70 2][]

![70 3][]

[70]: /images/20220521/ba42e51f3a4c4970a3b16bc494badbbb.png
[70 1]: /images/20220521/0ef4e7f842844d91a8d03e19047dab3a.png
[70 2]: /images/20220521/ac2e199404d64e908d0be00ff57b58f1.png
[70 3]: /images/20220521/c8a5327852274d529f3f6fe209ad2017.png