5.32 NAS-Identifier

5.32. NAS-Identifier

Description

  This Attribute contains a string identifying the NAS originating
  the Access-Request.  It is only used in Access-Request packets.
  Either NAS-IP-Address or NAS-Identifier MUST be present in an
  Access-Request packet.

  Note that NAS-Identifier MUST NOT be used to select the shared
  secret used to authenticate the request.  The source IP address of
  the Access-Request packet MUST be used to select the shared
  secret.

A summary of the NAS-Identifier 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 ... +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-

Type

  32 for NAS-Identifier.

Length

  >= 3

String

  The String field is one or more octets, and should be unique to
  the NAS within the scope of the RADIUS server.  For example, a
  fully qualified domain name would be suitable as a NAS-Identifier.

  The actual format of the information is site or application
  specific, and a robust implementation SHOULD support the field as
  undistinguished octets.

  The codification of the range of allowed usage of this field is
  outside the scope of this specification.