Bind NIC to hardware address?

[Michael R Head]

On Mon, 2007-03-05 at 18:49 +0100, Andreas wrote:
> Hi,
> My firewall with Ubuntu works like a charm, 2x dual port gigabit 
> ethernet cards and iptables firewall and all that. Works as said very well.
> My problem is when I restart the box, the nics order switches around.

/etc/iftab is the thing. Here's the contents (with my MAC addresses
hidden):
# This file assigns persistent names to network interfaces. See iftab(5).
# Replaced during upgrade
eth0 mac XX:XX:XX:XX:XX:XX
eth1 mac XX:XX:XX:XX:XX:XX

mike

> For example, the first time I booted the machine it looked like this:
> eth0 - Internal lan
> eth1 - DMZ
> eth2 - ISP1
> eth3 - ISP2
> 
> The next time I reboot the machine it can look like this:
> eth0 - ISP2
> eth1 - DMZ
> eth2 - Internal LAN
> eth3 - ISP1
> 
> This is very annoying.
> I figured the modules loaded in a different order, for some reason. Can 
> I lock down somehow, so port 0 on the broadcom card always is eth0, 
> port1 on the broadcom card etc., based on what MAC address the port has?
> 
> Regards
> Andreas
> 
> 
>