interfaces

This a good VPN source

######################################################################
# /etc/network/interfaces -- configuration file for ifup(8), ifdown(8)
#
# A "#" character in the very first column makes the rest of the line
# be ignored. Blank lines are ignored. Lines may be indented freely.
# A "\" character at the very end of the line indicates the next line
# should be treated as a continuation of the current one.
#
# The "noauto", "up", and "down" options are valid for all interfaces.
# "up" and "down" may be specified multiple times, all other options
# may only be specified once.
######################################################################

# We always want the loopback interface. Whether we want ifup/ifdown to
# know about is another matter, perhaps.
#
 iface lo inet loopback

#
# This is a config for UML machine "beet", which is used as a DNS root
# server in the FreeSWAN UML testing network.
#
# $Id: interfaces,v 1.2 2002/10/22 01:12:40 mcr Exp $
#

# An example ethernet card setup: (broadcast and gateway are optional)
#
iface eth0 inet static
     address 192.1.2.129
     network 192.1.2.0
     netmask 255.255.255.0
     broadcast 192.1.2.255
     up route add -net 192.0.1.0 netmask 255.255.255.0 gw 192.1.2.45
     up route add -net 192.0.2.0 netmask 255.255.255.0 gw 192.1.2.23