El Wednesday 26 March 2008 12:21:25 Nitin Arora escribió:
> When you receive a request you add a Via
> and your Via becomes top most Via in that case.
> so you have to add "received" in that particular "Via" header.

Hi Nitin, that's not true. A UAS doesn't add a Via when it receives a request. 
Maybe a proxy could do that but not a UAS that only needs to reply that 
request:

18.2.1 Receiving Requests

   When the server transport receives a request over any transport, it
   MUST examine the value of the "sent-by" parameter in the top Via
   header field value.  If the host portion of the "sent-by" parameter
   contains a domain name, or if it contains an IP address that differs
   from the packet source address, the server MUST add a "received"
   parameter to that Via header field value.  This parameter MUST
   contain the source address from which the packet was received.

Regards.

-- 
Iñaki Baz Castillo
[EMAIL PROTECTED]

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