On Tuesday, August 28, 2007 12:27 PM -0400 Dave <dmehler26 at woh.rr.com> wrote: > I've set up routers before for this purpose but always of the bsd type > and using their firewalls. I understand the concepts, nat, packet > filtering, etc. but i'm not getting iptales at all. If anyone is an > expert on this i'd appreciate hearing from you. I have what are probably > basic questions, i've read the docs, but i am lost. Wikipedia has a decent introduction: <http://en.wikipedia.org/wiki/Iptables> There's a list of links to diagrams at the end to help in understanding the packet flow. Let us know what doesn't make sense there, so the article can be adjusted.