RADIUS attribute from rfc2865

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Framed-Protocol

This Attribute indicates the framing to be used for framed access.
      It MAY be used in both Access-Request and Access-Accept packets.

   A summary of the Framed-Protocol Attribute format is shown below.
   The fields are transmitted from left to right.

    0                   1                   2                   3
    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
   |     Type      |    Length     |             Value
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
              Value (cont)         |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+

   Type

      7 for Framed-Protocol.

   Length

      6

   Value

      The Value field is four octets.

      1      PPP
      2      SLIP
      3      AppleTalk Remote Access Protocol (ARAP)
      4      Gandalf proprietary SingleLink/MultiLink protocol
      5      Xylogics proprietary IPX/SLIP
      6      X.75 Synchronous

        FreeRADIUS Vendor-Specific dictionary values:

                    1 - PPP 
                    2 - SLIP 
                    3 - ARAP 
                    4 - Gandalf-SLML 
                    5 - Xylogics-IPX-SLIP 
                    6 - X.75-Synchronous 
            

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