杭州华三通信技术有限公司
www.h3c.com.cn
第2页, 共19页
目 录
1 概述 .......................................................................................................................................3
2 技术应用背景 .........................................................................................................................4
2.1 DHCP协议产生的背景 .................................................................................................4
2.2 DHCP协议的主要优势 .................................................................................................4
2.3 应用场合 ......................................................................................................................5
2.4 应用限制 ......................................................................................................................5
3 特性介绍 ................................................................................................................................5
3.1 相关术语 ......................................................................................................................5
3.2 相关协议 ......................................................................................................................5
3.3 协议处理机制 ...............................................................................................................6
3.3.1 DHCP报文格式 ..................................................................................................6
3.3.2 DHCP报文类型 ..................................................................................................7
3.3.3 DHCP报文交互过程...........................................................................................7
3.4 设备处理流程 ...............................................................................................................9
3.4.1 DHCP客户端工作过程 .......................................................................................9
3.4.2 DHCP服务器工作过程 .....................................................................................10
3.4.3 DHCP中继工作过程.........................................................................................13
4 H3C低端以太网交换机实现的技术特色................................................................................15
5 典型组网案例 .......................................................................................................................16
6 总结和展望...........................................................................................................................17
7 参考文献 ..............................................................................................................................17
8 附录 .....................................................................................................................................17
