Find Local and Internet IP Address in C#

Hi Guys,

I was given a task to get the IP Address of a computer. Most of the times when we are working we have two IP's one assigned on the LAN network and one assigned by the internet ISP. I was given a task to find both of them. Here is how i was able to create the same.

    //For ISP (Internet Service Provider) IP Address
    public static string GetIPAddress()
        {
            System.Web.HttpContext context = System.Web.HttpContext.Current;
            string sIPAddress = context.Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
            if (string.IsNullOrEmpty(sIPAddress))
            {
                return context.Request.ServerVariables["REMOTE_ADDR"];
            }
            else
            {
                string[] ipArray = sIPAddress.Split(new Char[] { ',' });
                return ipArray[0];
            }
        }

    //For LAN (Local Area Network) IP Address
        public string LocalIPAddress()
        {
            IPHostEntry host;
            string localIP = "";
            host = Dns.GetHostEntry(Dns.GetHostName());
            foreach (IPAddress ip in host.AddressList)
            {
                if (ip.AddressFamily == AddressFamily.InterNetwork)
                {
                    localIP = ip.ToString();
                    break;
                }
            }
            return localIP;
        }

Thanks
Ritesh Tandon