This could also be put into the wiki, local port_redirection. Since it's not something I have any experiance with, i'm letting YOU help out.
http://wiki.debian.net/index.cgi?Firewalls. Fell free to use Firewalls-dnat-redirect as an example/template. If you make any improvements on the format, let me know and I'l update dnat-redirect. __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - 100MB free storage! http://promotions.yahoo.com/new_mail

