+--------------------+   +--------------------+
|                    |   |                    |
|     +--------+     |   |     +--------+     |
|     | Perl   |     |   |     | Telnet |     |
|     | script |     |   |     | server |     |
|     +--------+     |   |     +--------+     |
|         |          |   |         ^          |
|         v          |   |         |          |
|     +--------+     |   |     +--------+     |
|     | Tunnel |~~~~~~~~~~~~~~>| Tunnel |     |
|     +--------+     |   |     +--------+     |
|                    |   |                    |
+--------------------+   +--------------------+

~ = encrypted