Update username attribute in NAS

Padam Jeet Singh padam.singh at inventum.net
Wed Dec 9 09:27:55 CET 2015


> On 09-Dec-2015, at 10:58 am, Anirudh Malhotra <amalhotra.sp-dl at nkn.in> wrote:
> 
> Hey Everyone,
> 
> I have few questions first:
> Can User-Name attribute be updated at NAS after authentication is completed(post auth)?

>From RFC 2865:
5.1.  User-Name

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.*

So your NAS does not comply - it doesn’t need to because it’s not a MUST.

Your best bet may be the Class attribute. It’s sent verbatim back to server in most NAS.

Padam




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