Bridges and Keyfiles

[Justin Brown <justin brown fandingo org>]

I know that I've successfully setup a bridge using the keyfile plugin
before, but I can't seem to get it to work now.

I'm using Fedora 20 with NetworkManager-0.9.9.0-32.git20131003, which
is the up to date package.

Here's what I'm trying to do before I list my configs. I have a
physical interface p118p1 that connects to a tagged VLAN network. One
of the VLAN interfaces is vlan3. I want to create a bridge, which
connects to vlan3 and has an IPv4 address. (I've also tried this setup
without IP addresses, and it doesn't work either.)

600 root.root /etc/NetworkManager/system-connections/p118p1.ini
############################
[connection]
id=p118p1
uuid=8b639214-5806-4135-8e0a-d243f88e562c
type=802-3-ethernet

[802-3-ethernet]
mac-address=bc:5f:f4:00:2a:0a

[ipv4]
method=disabled

[ipv6]
method=ignore
#############################

600 root.root /etc/NetworkManager/system-connections/vlan3.ini
#############################
[connection]
id=vlan3
uuid=5aa46e95-8c37-45f1-b683-8b0268818189
type=vlan
master=105acc55-5bbf-483f-95fe-a9d86a0284f2
slave-type=bridge

[vlan]
parent=p118p1
id=3
interface-name=vlan3

[ipv4]
method=disabled

[ipv6]
method=ignore
#############################

600 root.root /etc/NetworkManager/system-connections/vmbr0.ini
#############################
[connection]
id=vmbr0
interface-name=vmbr0
uuid=105acc55-5bbf-483f-95fe-a9d86a0284f2
type=bridge
autoconnectboolean=true

[bridge]
interface-name=vmbr0

[ipv4]
method=manual
addresses1=10.3.1.1;24;0.0.0.0;

[ipv6]
method=ignore
#############################


Interfaces p118p1, vlan3, and other vlan interfaces (vlan2 with manual
ipv4 and vlan4 with auto) all come up properly. vmbr0 is never
created.

In the logs, there is only one line about vmbr0:

keyfile:     error in connection
/etc/NetworkManager/system-connections/vmbr0.ini: invalid or missing
connection property 'NMSettingIP4Config/ipv4.addresses: property is
missing'

I'm using https://fedoraproject.org/wiki/Networking/Bridging and
https://developer.gnome.org/NetworkManager/unstable/ref-settings.html#idp7510624
to configure the bridge.

Although I haven't even tried to add vlan3 to vmbr0 in the
configuration above, I'm confused by the Fedora documenation link
above. vlan3 already has a "master" setting to the physical interface,
p118p1, but that documentation indicates that vlan3 should have its
master set to vmbr0 uuid, which can't possibly be correct.

Thanks,
Justin