Re: Default Gateway with Manual Setting

[Dan Williams <dcbw redhat com>]

On Mon, 2009-10-05 at 15:03 -0400, Gene Czarcinski wrote:
> On Monday 05 October 2009 13:21:46 Dan Williams wrote:
> > On Mon, 2009-10-05 at 13:07 -0400, John Mahoney wrote:
> > > On Sun, Oct 4, 2009 at 1:56 AM, Martyn J. Pearce
> > > <fluffy sixears co uk> wrote:
> > >         Apogolies if re-asked, I have searched the mailing-list
> > >         archive to no avail.
> > >
> > >         I am running a new ubuntu install on a netbook (Eeepc surf),
> > >         with wired &
> > >         wireless networking available, both domestic
> > >         manually-configured networks (no
> > >         dhcp).  I have added Manual profiles to both wired &
> > >         wireless.  I cannot get
> > >         the default gateway (192.168.0.12) to configure, however.
> > >
> > >         I add two routes in the route config panel; one for
> > >         192.168.0.0/255.255.255.0
> > >         (no gateway), and one for 0.0.0.0/0.0.0.0 (gateway
> > >         192.168.0.12).  Having left
> > >         the edit dialogue, and applied, there is no difference to the
> > >         routing table as
> > >         displayed with route -n.  If I re-enter the routes edit panel,
> > >         I find that
> > >         it's collapsed the routes into one, being
> > >         192.168.0.0/255.255.255.0 (gateway
> > >         192.168.0.12); but there's no hint of the gateway in the route
> > >         config.
> > >
> > >
> > > Did you try adding the Default gateway to the Addresses section of the
> > > ipv4 settings tab instead of the routes section.
> > > Also, If you have both wired and wireless interfaces active, I
> > > believe, it will always use the wired default route first if possible.
> > 
> > The routes dialog doesn't take 0.0.0.0, because that's the default
> > route, and  NM manages the default route.  Here's what you do...
> > 
> > Set up your IP address and static routes.  By default, the wired device
> > will always get the default route.  If there is a device (any device)
> > that you do *not* want to have the default route at any point, check the
> > "Use this connection only for resources on its network" checkbox in the
> > "Routes" dialog of the IPv4 page.
> > 
> > That checkbox ensures that that connection (and thus any device that has
> > been activated using that connection) will not be the default route.
> 
> Nice in theory but this does not work in practice on with Fedora 11 or Fedora 
> 12 -- https://bugzilla.redhat.com/show_bug.cgi?id=523875
> 
> As I see it, there is one and possible two problems:
> 
> 1. The "connection only" does not stay checked (and, I assume, the appropriate 
> parameter does not get set).
> 
> 2. If "connection only" checkbox be made to work, is the default route set 
> properly.
> 
> IMHO, this is an important problem that needs fixing .. in at least F12 if not 
> in F11.
> 
> OK, there are only so many hours in a day and the maintainers/developers of 
> NetworkManager have a lot to do ... and, from the looks of it, NetworkManager 
> is a lot of code.
> 
> So, I am willing to put some time in on this.  I downloaded and installed the 
> F12 source rpm.   As I said, NetworkManager is a lot of code and I would 
> prefer to spend my time constructively rather than learning about all of 
> NetworkManager.  Could someone provide some guidance as to where (what source 
> files) I should be looking?

Which specific NM SRPM?  Ideally you have:

http://kojipkgs.fedoraproject.org/packages/NetworkManager/0.7.996/4.git20091002.fc12/src/NetworkManager-0.7.996-4.git20091002.fc12.src.rpm

You might also try to update to the packages here:

http://koji.fedoraproject.org/koji/buildinfo?buildID=134947

and see if you can reproduce the issue on F12, which would help.  F12
builds have had a fwe issues the past couple weeks that would have
prevented the "available to all users" checkbox from sticking, but which
are unrelated to anything in F11.

Once we've confirmed versions, I can point you to the right places.

Thanks!
Dan