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Key Features of RADIUS

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There is the list of key features of RADIUS:

  • Client/Server Model:

    • NAS will work as a client for RADIUS server.

    • RADIUS server is responsible for getting user connection requests, authenticating the user and then returning all configuration information necessary for the client to deliver service to the user.

    • A RADIUD server can act as a proxy client to other RADIUS servers.

  • Network Security:

    • Transactions between client and server are authenticated through the use of a shared key and this key is never sent over the network.

    • Password is encrypted before sending it over network.

  • Flexible Authentication Mechanisms:

    RADIUS supports following protocols for authentication purpose:

    • Point-to-Point Protocal - PPP

    • Password authentication protocol - PAP

    • Challenge-handshake authentication protocol - CHAP

    • Simple UNIX Login

  • Extensible Protocol:

    RADIUS is extensible; most vendors of RADIUS hardware and software implement their own dialects.

  • Stateless protocol, Using UDP, Runs at Port 1812.

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