[Serusers] onsip.org ser.cfg NAT issues.

[Charles Wang]

Dipole, Java:

Sorry, I am a newbie for sip. But I wanna know what it looks like
about RFC1918's IP and RFC3261's IP?
Can you give me some explains?

On Apr 5, 2005 8:19 AM, Java Rockx <javarockx at gmail.com> wrote:
> Dipole,
> 
> It is a violation of RFC3261 10.3 to alter the <Contact> header in a
> REGISTER message response. The reason is that processing REGISTER
> messages involves transaction matching as specified in Section 19.1.4.
> The SIP UA should use the contact header returned in the 200OK
> response for transaction matching.
> 
> fix_nated_register() will append fields to the contact header, but it
> will not alter the contact URI - which is the proper way to handle
> NATed client registrations.
> 
> You should also see in the MySQL location table that the "received"
> column will have the actual NATed IP (ie, the public IP) of the SIP UA
> while the contact column will have the actual RFC1918 URI. The
> recieved column is used in subsequent calls to lookup("location").
> Non-NATed REGISTER messages will not have a "recieved" value in the
> location table.
> 
> Perhaps some call logs can help identify your problems.
> 
> Regards,
> Paul
> 
> On Apr 4, 2005 7:24 PM, Dipole Moment <dipole.moment at gmail.com> wrote:
> > Hi all,
> >
> > Has anyone tried to implement SER using the getting started document
> > on onsip.org?  I tried it but calling NAT users wasn't possible until
> > I replaced fix_nated_register() with fix_nated_contact(), since
> > otherwise, SER would store RFC1918 IP of the end user in location
> > table.
> >
> > Another issue is that when a user behind NAT tries to call someone
> > with public IP address, only first few seconds of the conversation is
> > heard by the caller, later on, although callee can hear the caller's
> > voice the reverse isn't working.  I'm using SER with rtpproxy again
> > from the onsip.org site.
> >
> > Thanks in advance for any help.
> >
> > _______________________________________________
> > Serusers mailing list
> > serusers at lists.iptel.org
> > http://lists.iptel.org/mailman/listinfo/serusers
> >
> 
> _______________________________________________
> Serusers mailing list
> serusers at lists.iptel.org
> http://lists.iptel.org/mailman/listinfo/serusers
> 


-- 

Best Regards
Charles