Hello,
Thanks for your responses.
The traffic is a game, Total Annihilation, which I play online. It needs that range of ports open for UDP and TCP. Using a conventional firewall/router (I am using a symantec 200 at the moment) it is just a case of setting up port forwarding.
We use cisco pix 515e at work, which we have recently had installed so I bought a 501 for home so that I can learn how to use them without messing with the live boxes, hence the 'non-work' need.
I could forward all traffic to the box and control it using access lists (i think!) but I also run an e-mail server at home which means I need the incoming traffic split between the two boxes.
Regards
Adam