Detect and switch ethernet interfaces

Hi Everyone,

I am trying to configure my network interfaces so that my linux box is
always connected to the network.

On eth0, I have a direct connection to the internet. Similarly I can
connect to the Internet using dial up (on ppp0).

The situation is such that the ppp0 is the default method of
connecting to the internet, and the ethernet is a backup option

How do I configure the routing information so that, if I the
connection on the dial up is dropped, the network change is detected
and eth0 is used to connect.

Regards

Cartque

On Tue, 26 Feb 2008 08:09:31 -0800 (PST), Cartque <(E-Mail Removed)> wrote:

> How do I configure the routing information so that, if I the
> connection on the dial up is dropped, the network change is detected
> and eth0 is used to connect.

Put a higher metric on the ethernet.


--
-| Bob Hauck
-| http://www.haucks.org/

On Feb 27, 6:11*pm, Bob Hauck <postmas...@localhost.localdomain>
wrote:
> On Tue, 26 Feb 2008 08:09:31 -0800 (PST), Cartque <cart...@gmail.com> wrote:
> > How do I configure the routing information so that, if I the
> > connection on the dial up is dropped, the network change is detected
> > and eth0 is used to connect.
>
> Put a higher metric on the ethernet.
>
> --
> *-| Bob Hauck
> *-|http://www.haucks.org/

Thanks Bob.

I was able to put a higher metric using the "route" utility. The
ipconfig did not support the metric.
Added ifplugd from http://0pointer.de/lennart/projects/ifplugd/ to
down/up the interface and it works great now.

Regards,
Cartque