> -----Original Message-----
> From: Vijay K. Gurbani [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, December 07, 2000 2:23 AM
> To: Sambhrama Mundkur
> Cc: [EMAIL PROTECTED]
> Subject: Re: Via header
>
>
> Sambhrama Mundkur wrote:
> >
> > Hi,
> > I had a question about the Via header.
> > When a UAS receives a request, is the response always sent
> back to the
> > host mentioned in the Via header?
>
> Yes; the topmost Via header. If there is a maddr parameter in the
> topmost Via header, the response should be send there, otherwise, if
> there is a received parameter, the response should go there,
> else do a
> DNS query on the host specified in the Via and send the
> response there
> (see RFC 2543, section 6.40 for more info).
Just to be clear here; Vijay is talking about the case when a proxy receives
a response, and it wants to forward it upstream. Igor's note dealt with the
case where a UA or proxy receives a request, and generates its own response.
Based on the way that the received param is constructed, it turns out that
in either case the response is ultimately sent to the IP address that the
request came from, and to the port listed in the Via header.
-Jonathan R.
---
Jonathan D. Rosenberg 72 Eagle Rock Ave.
Chief Scientist First Floor
dynamicsoft East Hanover, NJ 07936
[EMAIL PROTECTED] FAX: (973) 952-5050
http://www.cs.columbia.edu/~jdrosen PHONE: (973) 952-5000
http://www.dynamicsoft.com
