private void CheckForIPChange()
{
uint newLocalAddress = 0;
if (string.IsNullOrWhiteSpace(LocalIP))
{
// pick the first IP address by default
if (_connections.Count > 0)
{
newLocalAddress = _connections[0].LocalIP;
}
// if we happened to have picked localhost, which may be used by some VPN/proxy software, look for any other ip other than localhost and pick it instead.
if (newLocalAddress == 0x100007F)
{
for (int i = 0; i < _connections.Count; i++)
{
if (_connections[i].LocalIP != 0x100007f)
{
newLocalAddress = _connections[i].LocalIP;
break;
}
}
}
}
else
{
newLocalAddress = (uint)IPAddress.Parse(LocalIP).Address;
}
if (_localAddress != newLocalAddress)
{
Trace.WriteLine("TCPNetworkMonitor: " + ((MonitorType == NetworkMonitorType.WinPCap) ? "WinPCap " : "") + "listening on IP: " + new IPAddress(newLocalAddress).ToString());
_localAddress = newLocalAddress;
if (MonitorType == NetworkMonitorType.WinPCap)
{
if (_winpcap != null)
{
_winpcap.Destroy();
}
_winpcap = new RawPCap();
_winpcap.Create(_localAddress);
}
else
{
if (_socket != null)
{
_socket.Destroy();
}
_socket = new RawSocket();
_socket.Create(_localAddress);
}
}
}
private void Cleanup()
{
if (_socket != null)
{
_socket.Destroy();
_socket = null;
}
if (_winpcap != null)
{
_winpcap.Destroy();
_winpcap = null;
}
_connections.Clear();
_localAddress = 0;
}