I am trying to run VoIP application through NAT. My VoIP code works fine, if I tried it from a PC directly accessing the internet using a dialup modem! But the same code doesn’t work on a machine which is on LAN and having internet access through leaseline. We have port restricted NAT. The register request gets Time Out!!! Is there any special precaution to be taken while making the VOIP code run from LAN? Can any change in firewall setting make that code run? Can anybody help me out? Thanks, in advance!
You have been firewalled to death.
When you use dialup, does not matter what ports you are trying to use, they will go trought.
When yu are in a lan, the lan administrator will likely restrict what portd could be used.
Very unlikely that you will be able to do VOIP from a NAT LAN.
Thanks for the prompt reply!
OK, then if I request lan administrator, to remove the firewall temporarily OR to make the required ports (which may be restricted currently) allowed in the Firewall script, then will my VoIP run? Is it the only change that I should make?
>”You have been firewalled to death.
>When you use dialup, does not >matter what ports you are trying >to use, they will go trought.
>When yu are in a lan, the lan >administrator will likely >restrict what portd could be used.
>Very unlikely that you will be >able to do VOIP from a NAT LAN.”