Re: NAT and firewalls transversal
"M. Rangnathan" <[email protected]>
| Newsgroups | gmane.comp.voip.nist-sip |
|---|---|
| Message-ID | <[email protected]> |
Michael, rport is a parameter in the via header. The stack can already interpret the rport parameter. Hagai, This question of NAT traversal comes up so often, can you consider doing a wiki "howto" page on it. Thanks. Regards Ranga Hagai Sela (TA) wrote: >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 >> >> >>_______________________________________________ >>nist-sip mailing list >>[email protected] >>http://www-x.antd.nist.gov/mailman/listinfo/nist-sip >> >> >> > > >_______________________________________________ >nist-sip mailing list >[email protected] >http://www-x.antd.nist.gov/mailman/listinfo/nist-sip > > > -- M. Ranganathan Advanced Networking Technologies Division, National Institute of Standards and Technology (NIST), 100 Bureau Drive, Stop 8920, Gaithersburg, MD 20899. tel:301 975 3664 , fax:301 590 0932 http://w3.antd.nist.gov/ Advanced Networking Technologies For the People!