11 Feb
2016
11 Feb
'16
5:26 p.m.
Hi,
One more thing observed in tcpdump, In DNS answer getting IP of server.net1.test(10.0.0.9), This might be issue that REGISTER request is trying to communicate with 10.0.0.9 instead of 10.0.0.11(I-CSCF). Please any suggestions.
Yes, of course. That is the reason. When the register request is processed by P-CSCF if forwards the request to an inbound proxy server of the target domain, and that is exactly the I-CSCF. You have to modify the DNS entries for resolving the SIP domain accordingly.
I have quickly modified the zone-files for you. That should work now.
BR Franz