Ros资源网一、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
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
2）ping测试
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