Not remove interface when wpa_supplicant shuts down

[Panagiotis Georgopoulos]

Hello Pavel, all,

	Please see bellow...

> On Mon, 2010-06-07 at 19:41 +0100, Panagiotis Georgopoulos wrote:
> 
> > Sorry for not putting it correctly, yes the interface is not removed,
> > it is just brought down, which reasonably -as you point out- removes
> > the routes. However, this is still annoying because when the
> interface
> > is brought down it loses its IP and all the related routes are
> removed
> > and should be added manually. Plus, if I have wireshark capturing
> > traffic on this interface it will whinge for the interface that was
> > brought down.
> 
> I suggest that you try to instruct wireshark not to exit.  Perhaps you
> should talk to wireshark developers.  It would be a more valuable tool
> if it could monitor all packets as soon as the interface goes up.
> 

Thanks for your suggestion! You are right, searching more on the Wireshark
side, it seems that if you run Wireshark with -i wlan0 -k it will stay up
and capture all packets without winging if an interface goes up and down. 


> Routes can be added by a script.  Fedora would do it
> using /etc/sysconfig/network-scripts/ifcfg-* scripts if the old style
> network configuration scripts are installed, as opposed to
> NetworkManager.
> 

Indeed, I could write a script for configuring ip addresses and adding
routes instead of doing this manually after executing wpa_supplicant (or use
Jouni's idea and kill it with the pid, which leaves the interface up and
running)

	Thanks again,
	Panos