5.1 User-Name

5.1. User-Name

Description

  This Attribute indicates the name of the user to be authenticated.
  It MUST be sent in Access-Request packets if available.

  It MAY be sent in an Access-Accept packet, in which case the
  client SHOULD use the name returned in the Access-Accept packet in
  all Accounting-Request packets for this session.  If the Access-
  Accept includes Service-Type = Rlogin and the User-Name attribute,
  a NAS MAY use the returned User-Name when performing the Rlogin
  function.

A summary of the User-Name 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

  1 for User-Name.

Length

  >= 3

String

  The String field is one or more octets.  The NAS may limit the
  maximum length of the User-Name but the ability to handle at least
  63 octets is recommended.

  The format of the username MAY be one of several forms:

  text      Consisting only of UTF-8 encoded 10646 [7] characters.

  network access identifier
            A Network Access Identifier as described in RFC 2486
            [8].

  distinguished name
            A name in ASN.1 form used in Public Key authentication
            systems.