[Sussex] Debian /etc/network/interfaces

[Colin Tuckley]

Alan F wrote:

> Well this has totally left me out of ideas. I'm trying to work out the
> mapping stuff in debian's /etc/network/interfaces. I have this simple
> shellscript which returns the value of something ($1) which was
> specified on the kernel boot line. The idea behind this is that I can
> specify ath0=home or ath0=work at the boot line and debian will
> configure my wireless settings accordingly.

> So the script seems to be working fine. But for some reason, my wireless settings aren't being configured. :-\

I've been having the same problems with /etc/network/interfaces with my
cardbus WiFi card. I've been trying to configure different configurations
without any luck. Like you, the script seems to work but the configuration
doesn't get set.

I've been using the "ifscheme" package for my script. I also looked at
various places on the web for help including:

http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/HOTPLUG.txt

- - - - - - - - - - - - - - - - - - - - - - - - - -
My simple single config which works is:

auto lo
iface lo inet loopback

mapping hotplug
        script grep
        map wlan0

iface wlan0 inet dhcp
    wireless_essid charmandean
    wireless_channel 6
    wireless_mode managed

- - - - - - - - - - - - - - - - - - - - - - - - - - -
The switchable one - which fails to configure the i/f is:

auto lo
iface lo inet loopback

mapping hotplug
        script echo
        map wlan0

mapping wlan0
	script /sbin/ifscheme-mapping

iface wlan0-home inet dhcp
    wireless_essid charmandean
    wireless_channel 6
    wireless_mode managed

iface wlan0-any inet dhcp
    wireless_essid any
    wireless_mode managed
- - - - - - - - - - - - - - - - - - - - - - - - - - -

Anyone got any ideas? I've tried various versions of the switchable one,
they seem to bring the interface up (as shown by iwconfig) but never
configure it, so it's never shown in ifconfig

Colin

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