RE: NAT and firewalls transversal

What do you mean by "add "rport" parameter explicitly to the stack"?

BTW, I have been there with microsoft RTC. It's a BAD UA.

Hagai.

-----Original Message-----
From: Michael kr [mailto:[email protected]] 
Sent: Tuesday, October 31, 2006 5:29 PM
To: Hagai Sela (TA); [email protected]
Subject: RE: [nist-sip] 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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