The device that accepts PPP connections and places clients on the network that the NAS serves. NAS is also called Terminal server.

A NAS is a piece of equipment that directly accepts users' connections. For example, in a wireless network the device serving as the NAS is the access point. In a dialup network, the NAS is the switch that connects the receiving modems to the computers providing the dialup services (e.g. e-mail and web browsing.)

Also Known As: NAS Definition: A device which answers a PSTN/ISDN call and converts that call to IP traffic.

A Network Access Server (NAS) is a single point of access to a remote resource.