public IPAddress GetExternalIP()
{
if (m_serviceUrl == null && !m_discoveryComplete.WaitOne(c_discoveryTimeOutMillis))
return null;
try
{
XmlDocument xdoc = SOAPRequest(m_serviceUrl, "<u:GetExternalIPAddress xmlns:u=\"urn:schemas-upnp-org:service:WANIPConnection:1\">" +
"</u:GetExternalIPAddress>", "GetExternalIPAddress");
XmlNamespaceManager nsMgr = new XmlNamespaceManager(xdoc.NameTable);
nsMgr.AddNamespace("tns", "urn:schemas-upnp-org:device-1-0");
string IP = xdoc.SelectSingleNode("//NewExternalIPAddress/text()", nsMgr).Value;
return IPAddress.Parse(IP);
}
catch (Exception ex)
{
m_peer.LogWarning("Failed to get external IP: " + ex.Message);
return null;
}
}