Hi Ranga,

If a sip request is received on a TCP connection, but the first Via header
indicates that the sent-protocol was UDP, I think the server should assume
that the sent-protocol in the Via header was erraneous, and reply on the
TCP connection. But that is my opinion. The draft-ietf-sip-rfc2543bis-05
seems to assume that the Via sent-protocol is correct, but it also tells
how a proxy can add an received parameter to an erraneous Via header. Thus
the server may not have to assume that the Via header is correct.

Regards,

H�kan

=========================
H�kan Jonsson
BlueLabs South AB
icq:105666541




Hello!

An elementary question:

If I have a sip request that is sent on a TCP connection and there is an
error in processing but the first via header indicates a UDP protocol,
should I send the response to the address in the first via header or
through the tcp connection that the server just accepted? (I am guessing
that one should use the via header to send the response but I just want
to be sure.)

Thanks.

Ranga.



--
M. Ranganathan
Advanced Networking Technologies Divsion
National Institute of Standards and Technology (NIST)
100 Bureau Drive, Stop 8920, Gaithersburg, MD 20899.
Tel: 301 975 3664 ; Fax: 301 590 0932

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