How to get a user's client IP address in ASP.NET?

Question

We have Request.UserHostAddress to get the IP address in ASP.NET, but this is usually the user\'s ISP\'s IP address, not exactly the user\'s machine IP address

Answer 1

What else do you consider the user IP address? If you want the IP address of the network adapter, I'm afraid there's no possible way to do it in a Web app. If your user is behind NAT or other stuff, you can't get the IP either.

Update: While there are Web sites that use IP to limit the user (like rapidshare), they don't work correctly in NAT environments.