Joshua Snyder (<josh_at_imagestream.com>) made a detailed picture about the IP packet flow on a Linux bridging firewall.
gute anleitung zum kompilieren eines realtime linux kernels
Wakeonlan is a Perl script that sends 'magic packets' to wake-on-LAN enabled ethernet adapters and motherboards, in order to switch on remote computers.
To make the process of configuration easier, a new build target has been added: make localmodconfig. It runs "lsmod" to find all the modules loaded on the current running system
Linux Advanced Routing & Traffic Control HOWTO