Setting address of interfaces

[kolaf]

I have trying to set the address of the individual interfaces of my wl-500gx. I've come up with the following commands:

#!/bin/sh
ifconfig eth0 192.168.1.2/24 up
ifconfig eth0.1 192.168.2.1/24 up
ifconfig eth1 192.168.3.1/24 up

this sets the addresses of interfaces correctly, but I've noticed that there is still a bridge in operation. To remove this I've tried both deleting the bridge as a whole, and removing the individual interfaces from the bridge with the commands

ifconfig br0 down;brctl delbr br0; or

brctl delif br0 eth0.1 (and eth1) .

This brings in some way down all interfaces, I am unable to ping the device on any of interfaces with correctly configured local IP addresses and network masks.

I also tried to configure the DHCP server to supply IP addresses in the correct ranges for the different interfaces, but since the interfaces are unavailable after deleting the bridge this is not working yet.

Does anyone have any idea of how to remove the bridge set individual IP addresses in different subnets on all three interfaces?

[kolaf]

I'm wondering if it has something to do with the fact that all interfaces have the same hardware address?

And one additional thing, how do I make the changes I do in /tmp/etc/dnsmasq.conf stick? Simply changing the file and rebooting causes the changes to disappear.