You wrote: > I have an Intel/486 and want to set it up as a router.
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, but here's a good one: http://www.geocities.com/Athens/Ithaca/9660/lrphowto.html - Brian