Re: Default Gateway with Manual Setting

[Gene Czarcinski <gene czarc net>]

On Sunday 04 October 2009 01:56:25 Martyn J. Pearce 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.
> 
> I have tried checking and unchecking the "use this connection only for
> resources on its network" (I'm sure it should be unchecked, but I tried
>  both); it makes no difference.
> 
> I'm sure I'm being stupid, could somebody take pity and enlighten me as to
> what I'm doing wrong?
> 
> I attach the relevant lines from /var/log/daemon.log (grep NetworkManager),
> I've checked the one bug mentioned therein; that is related to publishing
>  of offline mode rather than setting of default gateways.
> 
> Thanks,
> 
> [please cc: me on replies, I am not subscribed to the list]
> 
This may be related to the following --
https://bugzilla.redhat.com/show_bug.cgi?id=523875

This may be one or two bugs ... (1) the "connection only" checkbox does not 
stay checked and (2) even if checked, will the default route be set properly.

Obviously, this is correct routing is only a problem on a system with multiple 
NICs.  Even with multiple NICs, a system may not see the problem because of 
the order that NICs are activated (and order differs on F11 and F12 systems).

Gene