宽带接入认证方式的分析与比较

Analyze and compare with the method of broadband access authentication

为实现宽带网的"可运营和可管理",用户认证是关键.常用的宽带接入技术有ADSL,LAN,HFC等,相应的宽带接入认证方式有PPPoE,IEEE802.1x,DHCP+,Web等.通过对各种认证方式的原理、认证流程介绍,以及各自的优劣分析与比较,以找出适用不同场合的接入认证方式.PP-PoE方式成熟可靠,特别适合应用于ADSL接入;802.1x是未来宽带城域网首选的认证管理方式;Web方式较适合应用于酒店、宾馆园区网和校园网;DHCP+方式一般用在以太网接入中,而利用DHCP的动态地址分配方式同Web技术进行配合来实现更加理想的认证方式即DHCP+Web方式目前成为主流的认证方式.

For the realization of the broadband network ＂can be operated and managed＂, user authentication is the key. Commonly used broadband access technology are ADSL, LAN, HFC, etc. The corresponding broadband access authentication methods are PPPoE, IEEE 802. 1x, DHCP＋, Web, etc. Through analyzing the principles of authentication, authentication processes in the various authentications, comparing their respective merits and demerits, the authentication methods for different applications are proposed. The PPPoE mode is mature and reliable. It is especially suitable for ADSL access. The 802. 1x is the first choice for the future broadband MAN management authentication. The Web mode is suitable for applications in hotel, guesthouse and campus systems. DHCP is commonly used for Ethernet network. The DHCP＋ Web mode are becoming popular authentication technique, which combining dynamic address assignment in DHCP with Web technology to realize more effective authentication. The DHCP＋Web become the mainstream method of authentication methods.