Comm Tunnel is a FREE tool to connect two endpoints for Serial Port, TCP/IP or UDP. Comm Tunnel builds a tunnel between two endpoints. The endpoints can be any of serial port, TCP/IP server, TCP/IP client or UDP. The data received on one endpoint will be forward to anther endpoint. It displays data in text, hex and decimal format.

Comm Tunnel Features:
1. Build a tunnel between two endpoints
2. Support Serial Port, TCP/IP Server, TCP/IP Client and UDP
3. Display data in Text, Hex and Decimal format
4. Enumerate all available serial port on computer

How to Use
1. Download CommTunnel.zip and unzip it.
2. Run CommTunnel.exe.
3. Click "Setting" button to set both Endpoints respectively. The Endpoint could be a serial port, TCP/IP server, TCP/IP client or UDP.
4. Click "Start" button to connect two Endpoints. The connection status and the transferred data will also be shown in Log Window.
5. Click "Stop" button to disconnect two Endpoints.

Tips:
* Comm Tunnel will save the current status before it close. It will restore the status when it starts.
* Comm Tunnel can be added to Windows' start menu. It can run automatically and start connection immediately after login Windows.

The license of this software is Freeware, you can free download and free use this ip utility software.