Get IP address by query whatismyip.com
using System; using System.Collections.Generic; using System.Net; using System.Text; class Util { public static IEnumerable<T> ForEach<T>(this IEnumerable<T> source, Action<T> act) { foreach (T element in source) act(element); return source; } public static string GetIPAddress() { IPAddress ip = GetExternalIp(); if (ip == null) return Dns.GetHostEntry(Dns.GetHostName()).HostName; return Dns.GetHostEntry(ip).HostName; } private static IPAddress GetExternalIp() { try { string whatIsMyIp = "http://www.whatismyip.com/faq/automation.asp"; WebClient wc = new WebClient(); string requestHtml = Encoding.UTF8.GetString(wc.DownloadData(whatIsMyIp)); return IPAddress.Parse(requestHtml); } catch { return null; } } }