Get public/external IP address?

Question

I cant seem to get or find information on finding my routers public IP? Is this because it cant be done this way and would have to get it from a website?

Answer 1

private static string GetPublicIpAddress()
{
    using (var client = new WebClient())
    {
       return client.DownloadString("http://ifconfig.me").Replace("\n", "");
    }
}