# Tested on FreeBSD 4.2 Host A: ifconfig xl0 10.0.0.1 netmask 255.255.255.0 ifconfig gif0 10.0.1.1 10.0.1.2 netmask 255.255.255.0 gifconfig gif0 inet 10.0.0.1 10.0.0.2 Host B: ifconfig xl0 10.0.0.2 netmask 255.255.255.0 ifconfig gif0 10.0.1.2 10.0.1.1 netmask 255.255.255.0 gifconfig gif0 inet 10.0.0.2 10.0.0.1