How to get the public IP address of a user in C#

Question

I want the public IP address of the client who is using my website. The code below is showing the local IP in the LAN, but I want the public IP of the client.

//get mac address NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces(); String sMacAddress = string.Empty; foreach (NetworkInterface adapter in nics) {     if (sMacAddress == String.Empty)// only return MAC Address from first card       {         IPInterfaceProperties properties = adapter.GetIPProperties();         sMacAddress = adapter.GetPhysicalAddress().ToString();     } } // To Get IP Address   string IPHost = Dns.GetHostName(); string IP = Dns.GetHostByName(IPHost).AddressList[0].ToString(); 

Output:

Ip Address : 192.168.1.7

Please help me to get the public IP address.

Answer 1

This is what I use:

protected void GetUser_IP() {     string VisitorsIPAddr = string.Empty;     if (HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"] != null)     {         VisitorsIPAddr = HttpContext.Current.Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString();     }     else if (HttpContext.Current.Request.UserHostAddress.Length != 0)     {         VisitorsIPAddr = HttpContext.Current.Request.UserHostAddress;     }     uip.Text = "Your IP is: " + VisitorsIPAddr; } 

"uip" is the name of the label in the aspx page that shows the user IP.