Re: [SR-Users] kamailio 4.0.1 and nokia e72 udp

Hello,

On 5/12/13 9:48 PM, hiro wrote:

I'm using rtpproxy with symmetric NAT, so that is no option. If the packet with offset IP is not received by rtpproxy the call is fine even with symmetric NAT. In case that wasn't clear earlier: I did narrow it down to this single test before posting to simplify and thus make it more clear to everyone. RTP itself is working fine with the E72, only rtpproxy gets confused by that single seemingly useless packet.

it looks like rtpproxy needs to be patched, so that learning mode is kept for few packets and it will use the last src port for sending back traffic.

Other option could be playing with the firewall rules, to drop always first packet coming on rtpproxy ports range.

Cheers, Daniel