[Bug 503] ip_conntrack_sip , ip_nat_sip DNAT

[bugzilla-daemon at bugzilla.netfilter.org]

https://bugzilla.netfilter.org/bugzilla/show_bug.cgi?id=503





------- Additional Comments From siqhamo at newlunar.co.za  2006-09-15 13:01 MET -------
My setup is as follows sip<->nat(iptables:ip_nat_sip,ip_conntrack_sip)<-
>asterisk.What I would like to see happen is that my sip users on outside my 
nat should be able to register with my asterisk box which is on my lan .My 
setup on iptables is that any packets arriving at port 5060 should be 
forwarded to my asterisk box. 


Yes , I can register my sip client from the internet to my asterisk box the 
problem begins when I make calls , I only get one way audio i.e. from my 
asterisk box to the sip client.My setup on asterisk is that it must handle 
both sip and rtp .

When I ran ethereal on the sip client machine outside my nat I noticed that a 
sip packet coming from my asterisk box through my nat box , in the sdp section 
the OWNER and CONTACT information reffered to my asterisk box (10.0.*) instead 
of 196.* which means that my returning rtp packets will go to the  ip 10.* 
insted of 196.* which leads to one way audio.




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