In this article, we will see the multiple examples to get the public IP Address of a computer using C#.
You should check out the docs.
Example 1,
static string GetPublicIPAddress()
{
String address = "";
WebRequest request = WebRequest.Create("http://checkip.dyndns.org/");
using (WebResponse response = request.GetResponse())
using (System.IO.StreamReader stream = new System.IO.StreamReader(response.GetResponseStream()))
{
address = stream.ReadToEnd();
}
int first = address.IndexOf("Address: ") + 9;
int last = address.LastIndexOf("
");
address = address.Substring(first, last - first);
return address;
}
Example 2,
private string GetPublicIPAddress()
{
var request = (HttpWebRequest)WebRequest.Create("http://ifconfig.me");
request.UserAgent = "curl"; // this will tell the server to return the information as if the request was made by the linux "curl" command
string publicIPAddress;
request.Method = "GET";
using(WebResponse response = request.GetResponse())
{
using(var reader = new System.IO.StreamReader(response.GetResponseStream()))
{
publicIPAddress = reader.ReadToEnd();
}
}
return publicIPAddress.Replace("\n", "");
}
Example 3,
public static string GetPublicIPAddress ()
{
string url = "http://checkip.dyndns.org";
System.Net.WebRequest req = System.Net.WebRequest.Create(url);
System.Net.WebResponse resp = req.GetResponse();
System.IO.StreamReader sr = new System.IO.StreamReader(resp.GetResponseStream());
string response = sr.ReadToEnd().Trim();
string[] a = response.Split(':');
string a2 = a[1].Substring(1);
string[] a3 = a2.Split(');
string ip = a3[0];
return ip;
}
You must see this - How to get public IP address in JavaScript | jQuery
