If you have build 19 or higher>
In the Administration window select Settings-> Advanced-> Security Options
At the bottom of the security options window are a few logging options. Enable logging of TCP packets with a SYN flag to the security window. This will log all connection attempts that WinRoute will drop. The next step is to open the security log from the view-> logs menu.
In this case, a computer at 63.199.157.35 sends out a packet from port 4424 to a computer at 63.199.157.38 to port 23. Port 23 is the standard port for telnet. If you had a telnet server running on some private address such as 192.168.1.3 it would be listening on port 23. Therefore you would map TCP packets on port 23 to 192.168.1.3.