Default Gateway with Manual Setting

["Martyn J. Pearce" <fluffy sixears co uk>]

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]

Oct  4 06:45:57 allelujah NetworkManager: <info>  (eth0): now unmanaged 
Oct  4 06:45:57 allelujah NetworkManager: <info>  (eth0): device state change: 8 -> 1 
Oct  4 06:45:57 allelujah NetworkManager: <info>  (eth0): deactivating device (reason: 37). 
Oct  4 06:45:57 allelujah NetworkManager: <info>  (eth0): cleaning up... 
Oct  4 06:45:57 allelujah NetworkManager: <info>  (eth0): taking down device. 
Oct  4 06:45:57 allelujah NetworkManager: <info>  (wlan0): now unmanaged 
Oct  4 06:45:57 allelujah NetworkManager: <info>  (wlan0): device state change: 2 -> 1 
Oct  4 06:45:57 allelujah NetworkManager: <info>  (wlan0): cleaning up... 
Oct  4 06:45:57 allelujah NetworkManager: <info>  (wlan0): taking down device. 
Oct  4 06:45:57 allelujah NetworkManager: <info>  (eth0): carrier now OFF (device state 1) 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Waking up... 
Oct  4 06:45:59 allelujah NetworkManager: <info>  (eth0): now managed 
Oct  4 06:45:59 allelujah NetworkManager: <info>  (eth0): device state change: 1 -> 2 
Oct  4 06:45:59 allelujah NetworkManager: <info>  (eth0): bringing up device. 
Oct  4 06:45:59 allelujah NetworkManager: <info>  (eth0): preparing device. 
Oct  4 06:45:59 allelujah NetworkManager: <info>  (eth0): deactivating device (reason: 2). 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Unmanaged Device found; state CONNECTED forced. (see http://bugs.launchpad.net/bugs/191889) 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Unmanaged Device found; state CONNECTED forced. (see http://bugs.launchpad.net/bugs/191889) 
Oct  4 06:45:59 allelujah NetworkManager: <info>  (wlan0): now managed 
Oct  4 06:45:59 allelujah NetworkManager: <info>  (wlan0): device state change: 1 -> 2 
Oct  4 06:45:59 allelujah NetworkManager: <info>  (wlan0): bringing up device. 
Oct  4 06:45:59 allelujah NetworkManager: <info>  (wlan0): preparing device. 
Oct  4 06:45:59 allelujah NetworkManager: <info>  (wlan0): deactivating device (reason: 2). 
Oct  4 06:45:59 allelujah NetworkManager: <info>  (eth0): carrier now ON (device state 2) 
Oct  4 06:45:59 allelujah NetworkManager: <info>  (eth0): device state change: 2 -> 3 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Activation (eth0) starting connection 'sixears' 
Oct  4 06:45:59 allelujah NetworkManager: <info>  (eth0): device state change: 3 -> 4 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Activation (eth0) Stage 1 of 5 (Device Prepare) scheduled... 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Activation (eth0) Stage 1 of 5 (Device Prepare) started... 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Activation (eth0) Stage 2 of 5 (Device Configure) scheduled... 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Activation (eth0) Stage 1 of 5 (Device Prepare) complete. 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Activation (eth0) Stage 2 of 5 (Device Configure) starting... 
Oct  4 06:45:59 allelujah NetworkManager: <info>  (eth0): device state change: 4 -> 5 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Activation (eth0) Stage 2 of 5 (Device Configure) successful. 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Activation (eth0) Stage 3 of 5 (IP Configure Start) scheduled. 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Activation (eth0) Stage 2 of 5 (Device Configure) complete. 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Activation (eth0) Stage 3 of 5 (IP Configure Start) started... 
Oct  4 06:45:59 allelujah NetworkManager: <info>  (eth0): device state change: 5 -> 7 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Activation (eth0) Stage 4 of 5 (IP Configure Get) scheduled... 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Activation (eth0) Stage 3 of 5 (IP Configure Start) complete. 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Activation (eth0) Stage 4 of 5 (IP Configure Get) started... 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Activation (eth0) Stage 5 of 5 (IP Configure Commit) scheduled... 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Activation (eth0) Stage 4 of 5 (IP Configure Get) complete. 
Oct  4 06:45:59 allelujah NetworkManager: <info>  Activation (eth0) Stage 5 of 5 (IP Configure Commit) started... 
Oct  4 06:46:00 allelujah NetworkManager: <info>  (eth0): device state change: 7 -> 8 
Oct  4 06:46:00 allelujah NetworkManager: <info>  Activation (eth0) successful, device activated. 
Oct  4 06:46:00 allelujah NetworkManager: <info>  Activation (eth0) Stage 5 of 5 (IP Configure Commit) complete.