Hi Asif, You can refer to the section 3.1.3 [SIP to SIP with Multi Proxy Authentication] (Messages F1-F7) in the draft-ietf-sip-call-flows-0511.txt (SIP Call Flows Draft). It explains the multi-proxy authentication and the use of multiple authentication headers for an INVITE request.
I hope this helps. regards, Gaurav -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Asif Saleem Sent: Wednesday, July 13, 2005 9:01 AM To: [email protected] Subject: Re: [Sip-implementors] proxy servers multiple realm Hi, Thanks Dale. Does anyone know where to find a call flow example involving multiple authentication and authorization headers in a single request/response ? Best Regards, Asif On 7/13/05, Dale Worley <[EMAIL PROTECTED]> wrote: > > From: Asif Saleem > > > > When a client sends a request to a proxy server for the first time, > > how does the proxy server determine the realm of that request? My > > hunch is that it is based on the Request-URI. > > Usually, the proxy does not attempt to do that. Instead, in the 407 > response, it supplies a Proxy-Authenticate header for every realm it > would be willing to accept. The UA then resubmits the request with a > Proxy-Authorization header for one or more of those realms. > > Dale > > _______________________________________________ > Sip-implementors mailing list > [email protected] > http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors ********************** Legal Disclaimer **************************** "This email may contain confidential and privileged material for the sole use of the intended recipient. Any unauthorized review, use or distribution by others is strictly prohibited. If you have received the message in error, please advise the sender by reply email and delete the message. Thank you." ********************************************************************** _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
