示例图
一.实验目的
1.利用
DHCP 中继的功能，实现
IP地址的自动获取
二.注意事项
1.DHCP中继是直接与
DHCP服务器所在网段客户端连接的，但不一定要与
DHCP服务器所在网段直接相连
三.简单配置
AR1
sysname
AR1
#
dhcp enable
#
ip pool
A
gateway
-list
31.1.1.1
network
31.1.1.0 mask
255.255.255.0
#
interface GigabitEthernet0/0/0
ip address
12.1.1.1 255.255.255.0
dhcp select global
#
ip route
-static 0.0.0.0 0.0.0.0 12.1.1.2
#
return
AR2
sysname
AR2
#
dhcp enable
#
interface GigabitEthernet0/0/0
ip address
12.1.1.2 255.255.255.0
#
interface GigabitEthernet0/0/1
ip address
23.1.1.1 255.255.255.0
#
ip route
-static 31.1.1.0 255.255.255.0 23.1.1.2
#
return
AR3
sysname
AR3
#
dhcp enable
#
interface GigabitEthernet0/0/1
ip address
23.1.1.2 255.255.255.0
#
interface GigabitEthernet0/0/2
ip address
31.1.1.1 255.255.255.0
dhcp select relay
dhcp relay server
-ip
12.1.1.1
#
ip route
-static 12.1.1.0 255.255.255.0 23.1.1.1
#
return
