RADIUS attribute from microsoft


MS-HCAP-User-Name

HCAP-User-Name is a VSA used to indicate user identity information received over a 
      HCAP interface  by a RADIUS client.

      The fields of HCAP-User-Name MUST be set as follows:

            Vendor-Type: An 8-bit unsigned integer that MUST be set to 0x3C.

            Vendor-Length: An 8-bit unsigned integer that MUST be set to the length of the 
            Attribute-Specific Value field plus 2. Its value MUST be at least 3.

      Attribute-Specific Value: An octet string that contains characters from Windows ANSI code page (for more 
      information, see ) and MUST specify the name for the HCAP user (as specified in ).