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

# An example ethernet card setup: (broadcast and gateway are optional)
#
iface eth0 inet static
     address 192.1.2.254
     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

iface eth0:1 inet static
     address 192.1.2.129
     network 192.1.2.0
     netmask 255.255.255.0
     broadcast 192.1.2.255

iface eth0:2 inet static
     address 192.1.2.130
     network 192.1.2.0
     netmask 255.255.255.0
     broadcast 192.1.2.255

# okay, now add interfaces for when we are the default route for pieces
# of the reverse name.

iface eth0:3 inet static
     address 192.1.2.62
     network 192.1.2.0
     netmask 255.255.255.0
     broadcast 192.1.2.255

iface eth0:4 inet static
     address 192.1.2.30
     network 192.1.2.0
     netmask 255.255.255.0
     broadcast 192.1.2.255

iface eth0:5 inet static
	address 1.2.3.4
	netmask 255.255.255.255

iface eth0:7 inet static
     address 192.1.4.254
     network 192.1.4.0
     netmask 255.255.255.0
     broadcast 192.1.4.255

iface eth1 inet static
     address 192.1.3.254
     network 192.1.3.0
     netmask 255.255.255.0
     broadcast 192.1.3.255

iface eth2 inet static
     address 192.9.4.254
     network 192.9.4.0
     netmask 255.255.255.0
     broadcast 192.9.4.255