Wired Network setup by default

[Tom H]

> I'd like to have the wired network setup prior to any user logging in.
> This way ldap could be setup. I have

> current  /etc/network/inferfaces file
> auto lo eth0
> iface lo inet loopback
> iface eth0 inet dhcp

> but the networking still does not connect until I log in and when I do
> login it is connected as eth1 not eth0. What should I do?

I have never seen two NICs on the same auto line. Try
auto lo eth0
iface lo inet loopback
auto eth0
iface eth0 inet dhcp

If eth1 is not defined in /e/n/i then it is being brought up by
something other than /e/n/i like NM.