We have an NT/SBS network using local IP addressing (10.0.0.?) and a Pipeline 75 ISDN router with built-in firewall giving us 24-hour internet access.
In spite of using NAT and having the firewall supposedly not allowing inbound WWW traffic, it appears we acquired CODE RED. I d/l the patch and the symptoms of infection went away.
We don't have any need for anyone to come in to our system from outside (no OWA, no web hosting, etc).
Does anyone have experience in configuring the firewall on this router? Can you make some suggestions for keeping people out while not hindering people from getting out?