priller
join:2000-10-20 Gainesville, VA
·voip.ms
·Callcentric
·Vonage
·callwithus
| Re: How multiple ATAs can be behind same NAT router? said by artisticcheese :I thought UDP are packets are sent and received on the same port number so on router side it shall be receiving also on 5060? That's what you see on the "inside" of your network. But, the port is being changed before it leaves the WAN interface.
The combination of the IP address being translated, as well as the port, is what allows you to have multiple ATA's register to the same VoIP provider and not get confused. |