using System.Net; 1. string ip = (from a in Dns.GetHostEntry(Dns.GetHostName()).AddressList where a.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork select a).First().ToString(); 2. IPAddress ipAddress = Dns.GetHostEntry(Dns.GetHostName()).AddressList[0]; 3. IPHostEntry ipHost = Dns.Resolve(Dns.GetHostName()); IPAddress[] addressList = ipHost.AddressList; StringBuilder sb = new Str..