I'm using your iptables (iptables-gw). My problem is that my users would like to use outlook express to send/receive mail from the outside connection and these ports don't seem to be "open". Could you tell me what I need to change in iptables-gw to have this feature?
Also, I have users connecting over ppp+ IP=192.168.0.80 and I need to cut off all internet access. Only access to the intranet and mail.
Thanks very much.