Netfilter home pages: http://www.samba.org/netfilter http://netfilter.kernelnotes.org http://netfilter.filewatcher.org
`ip' tool: `iproute' deb and rpm ftp://ftp.inr.ac.ru/ (lists ip-routing/ mirrors)
Advanced Routing HOWTO http://www.ds9a.nl/2.4Routing
Netfilter documentation: http://www.samba.org/netfilter/unreliable-guides http://netfilter.kernelnotes.org/unreliable-guides http://netfilter.filewatcher.org/unreliable-guides