1、原理
2、实验拓扑
3、实验配置
R3配置
interface FastEthernet1/0
ip address 13.1.1.3 255.255.255.0
ip route 0.0.0.0 0.0.0.0 13.1.1.1
ip dhcp excluded-address 12.1.1.1 12.1.1.200
ip dhcp pool dhcp
network 12.1.1.0 255.255.255.0
dns-server 114.114.114.114
default-router 12.1.1.1
lease 3
R1配置
interface FastEthernet0/0
ip address 12.1.1.1 255.255.255.0
ip helper-address 13.1.1.3
interface FastEthernet1/0
ip address 13.1.1.1 255.255.255.0
R2配置
interface FastEthernet0/0
ip address dhcp
4、过程分析
本文转自开源殿堂 51CTO博客，原文链接：http://blog.51cto.com/kaiyuandiantang/1716018，如需转载请自行联系原作者
