RE: NAT and firewalls transversal

Thanks Hagai,

The only problem I have is that I am using Microsoft's
RTC stack as the UA basis, which is a black box and I
don't have access to the SIP signaling.

I am considering to add "rport" parameter explicitly
to the stack. Are you aware of any bad consequences of
it?

Michael


--- "Hagai Sela (TA)" <[email protected]> wrote:

> Oops. I was wrong; you should specify "rport" in
> your via header and not
> the request URI.
> 
> Hagai. 
> 
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of
> Michael kr
> Sent: Tuesday, October 31, 2006 3:07 PM
> To: [email protected]
> Subject: [nist-sip] NAT and firewalls transversal
> 
> 
> Hello experts,
> 
> In certain situation, my UA selected ports are not
> opened by a firewall,
> and the sip signaling does not get back to it.
> 
> However: I can reach this UA by using the same port
> it broadcast the SIP
> signaling with.
> 
> How can I reply on that port, using the stack?
> 
> Thanks,
> 
> Michael
> 
> 
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