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network access server Last modified: Tuesday, November 14, 2006
Abbreviated as NAS, a network access server is an access gateway between an external communications network and an internal network. A common use of NAS is by Internet service providers (ISP) where the user dials into the ISP and is given access to the Internet after being authorized by the access server. Network access server (NAS) is also referred to as a remote access server (RAS) or as a media gateway. The IETF Network Access Server Requirements Working Group is responsible for defining the requirements for modern network access servers.
Network Access Server Requirements Next Generation This document describes the terminology and gives a model of typical Network Access Server (NAS).	Related Categories Internet Access Networks Related Terms access communications dial-up access gateway IETF Internet ISP network remote access server