cat << EOF
TUN/TAP Driver Configuration:

(1)  make device node:         mknod /dev/net/tun c 10 200
(2a) add to /etc/modules.conf: alias char-major-10-200 tun
(2b) load driver:              modprobe tun
(3)  enable routing:           echo 1 > /proc/sys/net/ipv4/ip_forward

Note that either of steps (2a) or (2b) is sufficient.  While (2a)
only needs to be done once per install, (2b) needs to be done once
per reboot.
EOF
