Translations:Home router/178/en
From Gentoo Wiki
If a network bridge will be necessary, follow the instructions to set up a Network bridge. The name of the bridge (default br0) will then replace eth0 for the LAN device in the steps in this wiki. If a large number of network devices in the home router, consider renaming them via udev to make administration easier. Setting up a bridge and renaming devices is completely optional but recommended for larger home networks.