Configuring Multiple Default Routes in Linux « Darien Kindlund’s Blog [http://kindlund.wordpress.com/2007/11/19/configuring-multiple-default-routes-in-linux/#comment-10] . Assume you have a Linux system with more than one network interface card (NIC) — say eth0 and eth1. By default, administrators can define a single, default route (on eth0). However, if