rfc2058.txt

RFC 的详细文档！

   Type

      6 for Service-Type.

   Length

      6

   Value

      The Value field is four octets.

       1      Login
       2      Framed
       3      Callback Login
       4      Callback Framed
       5      Outbound
       6      Administrative
       7      NAS Prompt
       8      Authenticate Only
       9      Callback NAS Prompt

      The service types are defined as follows when used in an Access-
      Accept.  When used in an Access-Request, they should be considered
      to be a hint to the RADIUS server that the NAS has reason to
      believe the user would prefer the kind of service indicated, but
      the server is not required to honor the hint.

      Login               The user should be connected to a host.

      Framed              A Framed Protocol should be started for the
                          User, such as PPP or SLIP.

      Callback Login      The user should be disconnected and called
                          back, then connected to a host.

      Callback Framed     The user should be disconnected and called
                          back, then a Framed Protocol should be started
                          for the User, such as PPP or SLIP.

      Outbound            The user should be granted access to outgoing
                          devices.

      Administrative      The user should be granted access to the
                          administrative interface to the NAS from which
                          privileged commands can be executed.





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      NAS Prompt          The user should be provided a command prompt
                          on the NAS from which non-privileged commands
                          can be executed.

      Authenticate Only   Only Authentication is requested, and no
                          authorization information needs to be returned
                          in the Access-Accept (typically used by proxy
                          servers rather than the NAS itself).

      Callback NAS Prompt The user should be disconnected and called
                          back, then provided a command prompt on the
                          NAS from which non-privileged commands can be
                          executed.


5.7.  Framed-Protocol

   Description

      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










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   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

5.8.  Framed-IP-Address

   Description

      This Attribute indicates the address to be configured for the
      user.  It MAY be used in Access-Accept packets.  It MAY be used in
      an Access-Request packet as a hint by the NAS to the server that
      it would prefer that address, but the server is not required to
      honor the hint.

   A summary of the Framed-IP-Address 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     |            Address
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
            Address (cont)         |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


   Type

      8 for Framed-IP-Address.

   Length

      6

   Address

      The Address field is four octets.  The value 0xFFFFFFFF indicates
      that the NAS should allow the user to select an address (e.g.
      Negotiated).  The value 0xFFFFFFFE indicates that the NAS should
      select an address for the user (e.g. Assigned from a pool of
      addresses kept by the NAS).  Other valid values indicate that the
      NAS should use that value as the user's IP address.



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5.9.  Framed-IP-Netmask

   Description

      This Attribute indicates the IP netmask to be configured for the
      user when the user is a router to a network.  It MAY be used in
      Access-Accept packets.  It MAY be used in an Access-Request packet
      as a hint by the NAS to the server that it would prefer that
      netmask, but the server is not required to honor the hint.

   A summary of the Framed-IP-Netmask 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     |            Address
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
            Address (cont)         |
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+


   Type

      9 for Framed-IP-Netmask.

   Length

      6

   Address

      The Address field is four octets specifying the IP netmask of the
      user.

5.10.  Framed-Routing

   Description

      This Attribute indicates the routing method for the user, when the
      user is a router to a network.  It is only used in Access-Accept
      packets.









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   A summary of the Framed-Routing 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

      10 for Framed-Routing.

   Length

      6

   Value

      The Value field is four octets.

       0      None
       1      Send routing packets
       2      Listen for routing packets
       3      Send and Listen

5.11.  Filter-Id

   Description

      This Attribute indicates the name of the filter list for this
      user.  Zero or more Filter-Id attributes MAY be sent in an
      Access-Accept packet.

      Identifying a filter list by name allows the filter to be used on
      different NASes without regard to filter-list implementation
      details.

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

    0                   1                   2
    0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
   |     Type      |    Length     |  String ...
   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-



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   Type

      11 for Filter-Id.

   Length

      >= 3

   String

      The String field is one or more octets, and its contents are
      implementation dependent.  It is intended to be human readable and
      MUST NOT affect operation of the protocol.  It is recommended that
      the message contain displayable ASCII characters from the range 32
      through 126 decimal.

5.12.  Framed-MTU

   Description

      This Attribute indicates the Maximum Transmission Unit to be
      configured for the user, when it is not negotiated by some other
      means (such as PPP).  It is only used in Access-Accept packets.

   A summary of the Framed-MTU 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

      12 for Framed-MTU.

   Length

      6

   Value

      The Value field is four octets.  Despite the size of the field,
      values range from 64 to 65535.



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5.13.  Framed-Compression

   Description

     This Attribute indicates a compression protocol to be used for the
     link.  It MAY be used in Access-Accept packets.  It MAY be used in
     an Access-Request packet as a hint to the server that the NAS would
     prefer to use that compression, but the server is not required to
     honor the hint.

     More than one compression protocol Attribute MAY be sent.  It is
     the responsibility of the