Re: Network management, both ethernet and wireless

[ispmarin <ispmarin@gmail.com>]

On Nov 13, 3:50 pm, Andrew Sackville-West
<and...@farwestbilliards.com> wrote:
> On Tue, Nov 13, 2007 at 03:08:01AM -0800, ispmarin wrote:
> > Hello all.
>
> > I´ve just installed debian lenny (amd64) on my macbook, and since this
> > is my first time as a notebook user, I would like to hear your ways to
> > control connectivity. I have two different ethernet connections, home
> > and work, each with different IPs. I also have a wireless connection
> > at work, and would like also to connect to different wireless
> > connections (airports, etc). At work, if the ethernet connection is
> > plugged, wireless should be disabled; if it´s not, wireless should be
> > used. At home, the same. If ethernet is not connected, and I am not at
> > home or work, I should be able to search for other (encrypted or not)
> > wireless connections.
>
> the wireless part is (remarkably) fairly easy to work out. I use a
> 'mapping' interface stanza in my /etc/network/interfaces that hooks to
> a simple script. This script greps through an 'iwlist <interface>
> scan' call looking for particular strings. the script then sets the
> iwconfig parameters based on those results, changes some symlinks for
> /etc/hosts and /etc/apt/sources.list and then echoes out an
> appropriate string to return to the 'mapping' so that the right
> address gets assigned.
>
> If you want to disable wireless on wired connection, I'm not
> sure. Look at ifplugd perhaps and find a way to determine what its
> doing with the wired interface and then up or down the wireless
> appropriately. And for good battery life, kill the wireless altogther
> when you're not using it.
>
> A
>
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Can you post the script that script?

Thanks