[Grml] interfaces

My wireless interface is eth1 In /etc/network/interfaces the according lines are simply:

,---- | iface eth1 inet dhcp | wpa-passphrase waaskaaner | wpa-ssid irgdnwoos `----

Under debian I had no problems with this configuration. But under grml the interfaces are often changed, so eth0 comes up instead fo eth1, which of course doesn't work. As a workaround I wrote a small script which changes everything and restarts networking but gradually it became quit annoying. What can I do?

harry