Hi Paulo You might want to try the Debian-based Linux Router Project, at
http://www.linuxrouter.org/ The whole thing runs off a write-protected floppy, so you can't be hacked as badly as with a HD. The docs on the official site are not too good, you can find good ones at: http://lrp.c0wz.com To use real IP's, turn off the masquerading in /etc/network.conf. - Brian You wrote: > Hi all, > I have a computer (486 SX 33 - 16 Mb - 2 ethernet cards) that I want to > put to be a firewall in my network of 5 or 6 PCs that have real IPs. What I > can do to all packages pass by the 486 and still have real IPs?