Example #1
0
        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);
                }
            }
        }
Example #2
0
        private void Cleanup()
        {
            if (_socket != null)
            {
                _socket.Destroy();
                _socket = null;
            }
            if (_winpcap != null)
            {
                _winpcap.Destroy();
                _winpcap = null;
            }

            _connections.Clear();
            _localAddress = 0;
        }