guessnet with ifplugd during boot fails

[Olaf Conradi <oohlaf@gmail.com>]

Hello,

I've been trying to setup network auto detection, as I'm using my
laptop in more different places these days. I'm using hotplug, ifplugd
and guessnet.

To keep it simple, I started of with just detecting my home network
and ignoring wireless interfaces.

When the machine is booted, it works as intended:
* An ifup eth0 detects with guessnet the presence of my server and
brings up the logical interface home.
* If I remove the module of my network card and re-insert it with
modprobe then hotplug detects it, starts ifplugd and brings up the
interface as stated above.
* If I remove the cable ifplugd detects it and if I replug it again,
ifup eth0 is called.

So far so good, but when I boot the machine the interface is not
brought up. Ifplugd is running for the interface eth0. But ifup eth0
is never called.

If I do it manually, or replug the cable, then everything works again.
But I have no idea why it's not hapening automatically.

I also tried putting INTERFACES="eth0" in /etc/default/ifplugd and
commented the hotplug stanza in /etc/network/interfaces, but that
setup gave the same results.


This is my configuration:

I have NET_AGENT_POLICY=auto in /etc/default/hotplug

and my /etc/default/ifplugd contains:
INTERFACES="" with 
HOTPLUG_INTERFACES="all"
ARGS="-q -f -d10 -w -I"
SUSPEND_ACTION="stop"

This is what my /etc/network/interfaces looks like:

# The loopback network interface.
auto lo
iface lo inet loopback

# Allow hotplug to bring up interfaces.
mapping hotplug
        script echo

# Find out if the interface is wired or wireless.
mapping eth*
        script /usr/local/bin/interfacetype

mapping wired
        script /usr/sbin/guessnet-ifupdown
        map home
        map timeout: 10
        map verbose: true

#mapping wireless
        # empty for now

iface home inet dhcp
        dns-search student.utwente.nl
        # We are at home, my server is recognised.
        test peer address 192.168.1.1 mac 00:40:95:1B:3A:56

The script /usr/local/bin/interfacetype just checks for the existance
of /sys/class/net/$IFACE/wireless and outputs either wireless or wired
on the standard output.

For now I don't do anything with the wireless stanze. I first want to
get my onboard lan card working.

Does anyone know why guessnet does not detect my server during boot?
Is it guessnet where the problem lies?

 -Olaf