[SR-Users] NAT Problem in Asterisk Realtime + Kamailio config

andrzej.ciupek at asterisk.edu.pl andrzej.ciupek at asterisk.edu.pl
Thu Jan 27 12:42:56 CET 2011


Hello

I have started to use configuration like:

http://kb.asipto.com/asterisk:realtime:kamailio-3.0.x-asterisk-1.6.2-astdb

I works fine, but I have problem with dealing with NAT.

kamctl ul show gives me:

  AOR:: andrzej_104
                 Contact::  
sip:andrzej_104 at 10.5.0.94:14368;rinstance=9c2b256a13210aa7 Q=
                         Expires:: 46
                         Callid:: ZDUwYzIzMDNiZTI3MjkyNmFmOWEyOTI2ODcyNjVmNDg.
                         Cseq:: 60
                         User-agent:: eyeBeam release 1102q stamp 51814
                         State:: CS_DIRTY
                         Flags:: 0
                         Cflag:: 0
                         Socket:: udp:77.xx.yyy.zzz:5060
                         Methods:: 5087
         AOR:: andrzej_103
                 Contact:: sip:andrzej_103 at 10.5.0.165:5060 Q=
                         Expires:: 926
                         Callid:: 11631436-5060-1 at 10.5.0.165
                         Cseq:: 2257
                         User-agent:: Grandstream HT-502  V1.2A 1.0.3.10
                         State:: CS_SYNC
                         Flags:: 0
                         Cflag:: 0
                         Socket:: udp:77.xx.yyy.zzz:5060
                         Methods:: 6879

So when I have incomming call from Asterisk to Kamailio, Kamailio  
start to send call to LAN IP.
I have tried to use help from:
http://nil.uniza.sk/sip/nat-fw/configuring-nat-traversal-using-kamailio-31-and-rtpproxy-server

But I have never get:
Received:: and Cflag:: 192 it is always Cflag:: 0.
field in my kamctl ul show.

In my configuration Asterisk is Callweaver and is on the other server.  
I use rtpproxy-1.2.1 and kamailio-3.0.1 and mofified config from link:

http://kb.asipto.com/asterisk:realtime:kamailio-3.0.x-asterisk-1.6.2-astdb

Please help.





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