Stephan, you may also read an introduction to iptables and other articles at http://www.fruehbrodt.org/artikel/netfilter.html BTW, you can use ipchains even with the kernel 2.4. series. I wouldn't recommendthis since iptables is much easier to configure and it supports connection tracking, flexible SNAT, DNAT, Masquerading, Logging etc. etc.
I seem to have a problem with getting my LAN into the net. I've set up a new 7.3-system (Kernel 2.4) which sould act as a router/proxy/firewall between the LAN and the internet (I don't like my
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Jörg Frühbrodt