Re: Disabling wireless networking.

[Dan Williams <dcbw redhat com>]

On Mon, 2010-03-15 at 19:03 -0400, Michael H. Warfield wrote:
> On Mon, 2010-03-15 at 15:59 -0700, Dan Williams wrote: 
> > On Mon, 2010-03-15 at 16:39 -0400, Michael H. Warfield wrote:
> > > Hey all,
> > > 
> > > Pop question.  This is one of my burning annoyances with NetworkManager
> > > and maybe there's an easy way to do this and I just can't find it.
> > > But...  How do I disable wireless networking by default.  I can disable
> > > it but, the next time I log in, it's enabled again.  I want it stone
> > > cold dead unless I overtly and explicitly choose to enabled it and then
> > > I want it off if I log out and log back in again.
> 
> > There are two solutions to your problem; first is that NM 0.8.0 and NM
> > 0.7.3 (not yet released) will save the wifi state and restore it when
> > you restart.
> 
> > Second is that NM 0.8.x has IPv6 support, and if you're running that
> > version you can set your wifi connection's IPv6 method to "ignore", and
> > NM will not start IPv6 on that interface.
> 
> Ooo...  Very interesting.  Shame that NM is so far behind the curve on
> IPv6 support that this is only just now coming out.  I've been on v6 for
> just about a decade and it's been mandatory for me for years (and I'm
> even in the US where we've been the slowest).  I will definitely be
> checking that out.

Certainly let the list know if something doesn't quite work like you
expect it with IPv6.  There's support for both straight autoconf, and
autoconf + DHCPv6 (triggered by the RA's content) and plain DHCPv6.

Dan

> > Dan
> 
> Regards,
> Mike
> 
> > > The problem is that I work in an environment that is very rich in IPv6
> > > support, at home and at work and on the road and at my colocation
> > > facility.  I have v6 everywhere.  The problem is that NM brings up wlan0
> > > long after eth0 has been up and then the wlan0 interface gets hit with a
> > > new RA (router advertisement) which then causes all the v6 traffic to be
> > > routed out through the wireless WHICH I DO NOT WANT even though the v4
> > > default route is out eth0.  Because wlan0 gets the RA later than the
> > > eth0 address in response to its RD (router discovery) request, it has a
> > > later expiration time on the routes so it gets preference over the eth0
> > > interface.  This is by design.  It's the way v6 is suppose to work and
> > > is how you renumber autoconfed v6 networks.  But is screws me over
> > > royally when I'm in a situation where I've got a hard wired network
> > > connection and the wireless is less than stable and keeps screwing up
> > > all my v6 connections.  Disabling it after logging in is useless because
> > > it has already brought it up and loaded the v6 routes with a new default
> > > and that then just breaks things.
> > > 
> > > I want wireless off and to STAY OFF unless I want it on and know that I
> > > want it on.  But I can't find a sticky setting that basically tells it
> > > to play dead and STAY DEAD.  (The wireless "switch" on my laptop only
> > > switches the bluetooth, unfortunately).
> > > 
> > > Mike
> > > _______________________________________________
> > > NetworkManager-list mailing list
> > > NetworkManager-list gnome org
> > > http://mail.gnome.org/mailman/listinfo/networkmanager-list
> > 
> > 
>