VS-GW2120: NAT UDP problem on any module except 1

As far as i can see, for some soft clients (GS Wave) it works in a opposite way: GSM to SIP works, SIP to GSM doesn't work.

I suppose that might be caused by differnt IP address used for sending RTP traffic for modules starting from 2.

For example, i have LAN IP 192.168.10.222 as main LAN IP. And all modules are in cluster and have their own internal IP addresses. What IP address will be used to send RTP from, for the second module, for example?

I just logged via SSH to OpenVox and got good and bad calls information (sip show channels and the sip show channel for each channel)

Good one (from the main module gsm1) has only one peer (directly to endpoing) and the bad call had two peers, one from Asterisk to the endpoint and the second is from ASterisk to another Asterisk on he gms2 module.

I suppose IP addresses of the second gsm module somehow related to that, but how?

Do i have to enabled something for NAT on all gsm modules' Asterisk?

Please help with that. Real NAT problem with all modules except first one

Hi sir,

Sorry for the trouble. The internal ip of slave boards is used to communication with master board(board 1). When communication with sip server, all the modules will use ip of master board. Please prepare remote access for checking. I will help you to figure it out. For convenient contact, please add me as your skype friend.

Best Regards,
Linda
email: This email address is being protected from spambots. You need JavaScript enabled to view it.
skype: linda.li258

Hi,

THank you, i will do. Just moved all clients from SIP to IAX2 and everything is fine. Looks like asterisk NAT doesn't work well in complicated networks.