How to get *internet* IP?

Question

Imagine a situation, I have PC with two lan cards, one is connected to internet another is connected to local network, how can I detect IP which is connected to internet wi

Answer 1

I already search that, i found it in this codeplex project http://www.codeplex.com/xedus. It a none working P2P freeware but there is a class that use the right API to get the lan card witch has the internet ip