public ip addresses
Posted on 2008-10-04
The Orange mobile NAT structure does not map the internal ports to public ports. For example a private IP 10.85.32.56 and port 5000 may be mapped to a public IP of 188.8.131.52 and the same port 5000 i.e. the port is not mapped.
But, what happens if two or more devices open up the local port 5000 within the same network? Can this be an issue or do every 3G device have a seperate public IP address with Orange for example?
When I run IPconfig in command prompt I get the subnet 255.255.255.255.....which I presume means that I'm the only device on that subnet and that every device has a unique public IP addresses. If so then how can Orange hold so many public IP addresses?????