Ubuntu IP Configuration - multiple subnets & interfaces
- by HaydnWVN
Have a 'new' mailserver running postfix on Ubuntu.
We are having some problems configuring the subnets & interfaces.
Basically 2 subnets (.253. & .254.) need to be connected through the 3rd subnet (.252.) where the Router is residing.
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
iface eth0 inet static
address 10.62.254.199
netmask 255.255.0.0
network 10.62.254.0
broadcast 10.62.255.255
#gateway 10.62.252.138
# dns-* options are implemented by the resolvconf package, if installed
dns-nameservers 10.62.252.138
dns-search ***.com
auto eth1
iface eth1 inet static
address 10.62.253.199
netmask 255.255.0.0
network 10.62.253.0
broadcast 10.62.255.255
#gateway 10.62.252.138
#dns-nameservers 10.62.254.199 10.62.253.199 10.62.252.199
dns-nameservers 10.62.252.138
dns-search ***.com
auto eth2
iface eth2 inet static
address 10.62.252.199
netmask 255.255.0.0
network 10.62.252.0
broadcast 10.62.255.255
gateway 10.62.252.138
#dns-nameservers 10.62.254.199 10.62.253.199 10.62.252.199
dns-search ***.com
I have an external support company who are looking into this (they built and configured this server), but it's taking far too long... So I'm looking to highlight the mistake!