DHCP Client按Option60分流的研究与实现

动态主机配置协议（DHCP）主要用来动态提供配置参数给因特网上的主机,一方面从DHCP服务器传送主机特定的协议配置参数到主机,另一方面自动分配网络地址给主机。目前本地局域网大多使用高速公共因特网接入技术和高速调制器,并使用动态主机配置协议分配用户的主机地址。然而,随着数字电视等业务的发展,用户家庭需要分配IP地址的设备越来越多,如何将用户不同设备的DHCP请求分流至特定的服务器就成为日益迫切需要解决的问题。本文针对目前在局域网普遍使用的DHCP及其为解决分流问题而引进的Option60机制进行简单的描述,并具体阐述其实现方式。

The Dynamic Host Configuration Protocol （DHCP） is mainly used to provide configuration parameters for hosts on the Internet. On the one hand, it transmit host specific configuration parameters from the DHCP server to the client host, and on the other band, it assign network addresses for the client host. Currently, most of the local area networks access Internet via high speed public Internet access technologies and high speed modulator. And use DHCP to distribute host address for the user＇s devices. However, with the development of digital television services, more and more devices need ip addresses to be assigned. How to user requests for different devices diverted to a particular DIICP server has become increasingly it＇ s a urgent problem to be solved that how to divert DHCP request from different user devices to specific server. This paper describes both the Option60 mechanism aiming at the DHCP commonly used in LAN and its diverting probtems, and the implementation in detail.