Test for configured ethX

I have a machine that travels. I want to configure it differently when
it is attached to a local network and when it is not.

So...

Is there an easy way to test if ethX (eth1 in my case) has received an
IP address via DHCP?

What I want is something like this:

Try to get a DHCP address
If you succeed, do the following
copy network database config file to our config
If you fail, do the following
copy local database config file to our config
start local mysqld

Nothing too complex.... But I can't seem to find a reliable test for the
DHCP assignment.

The box is running Debian Etch, if that matters....

--Yan

2007-03-28, 09:44(-08), CptDondo:
> I have a machine that travels. I want to configure it differently when
> it is attached to a local network and when it is not.
>
> So...
>
> Is there an easy way to test if ethX (eth1 in my case) has received an
> IP address via DHCP?
>
> What I want is something like this:
>
> Try to get a DHCP address
> If you succeed, do the following
> copy network database config file to our config
> If you fail, do the following
> copy local database config file to our config
> start local mysqld
>
> Nothing too complex.... But I can't seem to find a reliable test for the
> DHCP assignment.
[...]

I would use dhclient-script hooks. See:

man dhclient-script

--
Stéphane