Hi,
first of all I beg your pardon - while I'm just the one cleaning old bugs - it
is bad that you had to wait so long.
Now lets get to your case...
This is a mix of systemd and ifup based network ocnfiguration, and in
Artful a lot of this was still in flight.
In Bionic there is a simplified frontend to networkd (or networkmanager) [1]
netplan.
I wanted to check your case with this new way to do it.
I have 4 devices, using one as "wan" and 3 for the bridge in netplan looks like:
network:
version: 2
ethernets:
wan:
dhcp4: true
match:
macaddress: 52:54:00:75:f5:3e
set-name: wan
lan1:
match:
macaddress: 52:54:00:84:a1:87
set-name: lan1
lan2:
match:
macaddress: 52:54:00:f3:4f:cc
set-name: lan2
lan3:
match:
macaddress: 52:54:00:ff:11:1a
set-name: lan3
bridges:
br0:
addresses: [ 10.0.0.1/24 ]
interfaces:
- lan1
- lan2
- lan3
That will create link files like yours for renaming:
$ cat /run/systemd/network/10-netplan-wan.link
[Match]
MACAddress=52:54:00:75:f5:3e
[Link]
Name=wan
WakeOnLan=off
But also for network configuration:
$ cat /run/systemd/network/10-netplan-wan.network
[Match]
MACAddress=52:54:00:75:f5:3e
Name=wan
[Network]
DHCP=ipv4
[DHCP]
UseMTU=true
RouteMetric=100
Especially also the bridge:
$ cat /run/systemd/network/10-netplan-br0.network
[Match]
Name=br0
[Network]
Address=10.0.0.1/24
$ cat /run/systemd/network/10-netplan-br0.netdev
[NetDev]
Name=br0
Kind=bridge
And the device association to the bridge:
$ cat /run/systemd/network/10-netplan-lan2.network
[Match]
MACAddress=52:54:00:f3:4f:cc
Name=lan2
[Network]
Bridge=br0
LinkLocalAddressing=no
That looks good to me now:
$ networkctl list
IDX LINK TYPE OPERATIONAL SETUP
1 lo loopback carrier unmanaged
6 br0 ether routable configured
7 lan3 ether carrier configured
8 lan1 ether carrier configured
9 wan ether routable configured
10 lan2 ether carrier configured
$ networkctl status
● State: routable
Address: 10.0.0.1 on br0
192.168.122.229 on wan
fe80::e831:94ff:fe76:95f9 on br0
fe80::5054:ff:fe75:f53e on wan
Gateway: 192.168.122.1 on wan
DNS: 192.168.122.1
$ brctl show
bridge name bridge id STP enabled interfaces
br0 8000.ea31947695f9 no lan1
lan2
lan3
Please see [1] and man netplan for more, or feel free to write the same
in networkd rules as you already started on your own.
But mixing the systems to control devices is not really recommended as
you'd run in issues just as the one you have reported.
Therefore I'd consider this a broken config more than a bug in Ubuntu
and would mark the bug incomplete for now until further discussion/info
was provided.
[1]: https://netplan.io/
** Also affects: netplan.io (Ubuntu)
Importance: Undecided
Status: New
** Changed in: systemd (Ubuntu)
Status: New => Incomplete
** Changed in: netplan.io (Ubuntu)
Status: New => Incomplete
** Changed in: bridge-utils (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1738085
Title:
Bridge gets created while the network interfaces are still being
renamed
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