一、单臂路由结构的DHCP

1.启动设备

2.将pc设为DHCP获取IP地址

3.交换机创建vlan并设置模式

[SW1]vlan batch 10 20

[SW1]int g0/0/1

[SW1-GigabitEthernet0/0/1]port link-type trunk

[SW1-GigabitEthernet0/0/1]port trunk allow-pass vlan all

[SW1-GigabitEthernet0/0/1]int g0/0/2

[SW1-GigabitEthernet0/0/2]port link-type access

[SW1-GigabitEthernet0/0/2]port default vlan 10

[SW1-GigabitEthernet0/0/2]int g0/0/3

[SW1-GigabitEthernet0/0/3]port link-type access

[SW1-GigabitEthernet0/0/3]port default vlan 20

4.配置DHCP

[AR1]dhcp enable   //启动DHCP服务

[AR1]int g0/0/0.1

[AR1-GigabitEthernet0/0/0.1]dot1q termination vid 10

[AR1-GigabitEthernet0/0/0.1]ip add 192.168.1.1 24

[AR1-GigabitEthernet0/0/0.1]dhcp select global   //开启全局模式

[AR1-GigabitEthernet0/0/0.1]arp broadcast enable   //开启子接口广播

[AR1-GigabitEthernet0/0/0.1]int g0/0/0.2

[AR1-GigabitEthernet0/0/0.2]dot1q termination vid 20

[AR1-GigabitEthernet0/0/0.2]ip add 192.168.2.1 24

[AR1-GigabitEthernet0/0/0.2]dhcp select global   //开启全局模式

[AR1-GigabitEthernet0/0/0.2]arp broadcast enable   //开启子接口广播

[AR1-GigabitEthernet0/0/0.2]quit

[AR1]ip pool vlan10  //设置地址池

[AR1-ip-pool-vlan10]network 192.168.1.0 mask 24  //设置地址范围

[AR1-ip-pool-vlan10]gateway-list 192.168.1.1  //设置网关地址

[AR1-ip-pool-vlan10]quit

[AR1]ip pool vlan20  //设置地址池

[AR1-ip-pool-vlan20]network 192.168.2.0 mask 24  //设置地址范围

[AR1-ip-pool-vlan20]gateway-list 192.168.2.1  //设置网关地址

[AR1-ip-pool-vlan20]q

验证：

使用ipconfig查看pc获取到的IP地址

使用pc1ping通192.168.1.1、192.168.2.1、pc2(192.168.2.254)

二、DHCP中继代理

1.启动设备

2.将pc设为DHCP获取IP地址

3.配置交换机

[SW2]vlan batch 10 20 100

[SW2]int g0/0/1

[SW2-GigabitEthernet0/0/1]port link-type trunk

[SW2-GigabitEthernet0/0/1]port trunk allow-pass vlan 100

[SW2-GigabitEthernet0/0/1]int g0/0/2

[SW2-GigabitEthernet0/0/2]port link-type access

[SW2-GigabitEthernet0/0/2]port default vlan 10

[SW2-GigabitEthernet0/0/2]int g0/0/3

[SW2-GigabitEthernet0/0/3]port link-type access

[SW2-GigabitEthernet0/0/3]port default vlan 20

[SW2-GigabitEthernet0/0/3]q

[SW2]int Vlanif 10

[SW2-Vlanif10]ip add 192.168.10.1 24

[SW2-Vlanif10]int vl 20

[SW2-Vlanif20]ip add 192.168.20.1 24

[SW2-Vlanif20]int vl 100

[SW2-Vlanif100]ip add 10.10.10.1 30

[SW2-Vlanif100]q

[SW2]ip route-static 0.0.0.0 0.0.0.0 10.10.10.2

[SW1]vlan 100

[SW1-vlan100]q

[SW1]int g0/0/1

[SW1-GigabitEthernet0/0/1]port link-type trunk

[SW1-GigabitEthernet0/0/1]port trunk allow-pass vlan 100

[SW1-GigabitEthernet0/0/1]int vl 100

[SW1-Vlanif100]ip add 10.10.10.2 30

[SW1-Vlanif100]q

[SW1]ip route-static 192.168.10.0 255.255.255.0 10.10.10.1

[SW1]ip route-static 192.168.20.0 255.255.255.0 10.10.10.1

4.配置HDCP中继

[SW2]dhcp enable   //启动DHCP服务

[SW2]int Vlanif 10

[SW2-Vlanif10]dhcp select relay   //启动中继模式

[SW2-Vlanif10]dhcp relay server-ip 10.10.10.2  //设置中继转发服务器地址

[SW2-Vlanif10]int vl 20

[SW2-Vlanif20]dhcp select relay   //启动中继模式

[SW2-Vlanif20]dhcp relay server-ip 10.10.10.2  //设置中继转发服务器地址

5.配置DHCP

[SW1]dhcp enable   //启动DHCP服务

[SW1]int Vlanif 100

[SW1-Vlanif100]dhcp select global   //开启全局模式

[SW1-Vlanif100]q

[SW1]ip pool vlan10  //设置地址池

[SW1-ip-pool-vlan10]network 192.168.10.0 mask 24  //设置地址范围

[SW1-ip-pool-vlan10]gateway-list 192.168.10.1  //设置网关地址

[SW1-ip-pool-vlan10]q

[SW1]ip pool vlan20  //设置地址池

[SW1-ip-pool-vlan20]network 192.168.20.0 mask 24  //设置地址范围

[SW1-ip-pool-vlan20]gateway-list 192.168.20.1  //设置网关地址

验证：

使用ipconfig查看pc是否获得IP地址