本文讨论了802.11标准定义的无线局域网的两种组网结构IBSS和ESS的工作原理，分析了它们的多地址帧结构在组网中的功能和作用，讨论了MAC协议对无线站点的移动性支持方面的不足，以及在组建多跳无线网时需要进一步解决的问题。-This article discusses the 802.11 standard defines two types of wireless LAN networking structure of the working principle of IBSS and ESS, and analysis of their multi-frame structure of the network address of the function and role in the discussion of the MAC protocol for wireless mobility support site deficiencies, as well as in the formation of multi-hop wireless networks need further problems.