22.04 os update lost virt-manager network

[Jerry Geis]

On Mon, Dec 18, 2023 at 9:59 AM Jerry Geis <jerry.geis at gmail.com> wrote:

>
> Is something WRONG with the bridge ???
>
> enp4s0: connected to Wired connection 2
>         "Realtek RTL8125 2.5GbE"
>         ethernet (r8169), 74:56:3C:31:8F:94, hw, mtu 1500
>         ip4 default
>         inet4 192.168.2.16/22
>         route4 192.168.0.0/22 metric 100
>         route4 default via 192.168.1.1 metric 100
>         inet6 fe80::eecb:e36:f2ef:8491/64
>         route6 fe80::/64 metric 1024
>
> br0: connected to bridge-br0
>         "br0"
>         bridge, 0E:89:0B:34:CE:63, sw, mtu 1500
>         inet4 192.168.1.46/22
>         route4 192.168.0.0/22 metric 425
>         route4 default via 192.168.1.1 metric 20425
>         route4 169.254.0.0/16 metric 1000
>
>
>
> ping -I br0 192.168.1.8
> PING 192.168.1.8 (192.168.1.8) from 192.168.1.46 br0: 56(84) bytes of data.
> ^C
> --- 192.168.1.8 ping statistics ---
> 1 packets transmitted, 0 received, 100% packet loss, time 0ms
>
> The virt-manager is set for br0 and is NOT working anymore after
> the reboot ???
> What happened to br0?
> The HOST seems to be working OK besides that.
>
> more bridge-br0.nmconnection
> [connection]
> id=bridge-br0
> uuid=bc8081ad-2e5a-4704-b6b7-ba2ca311c783
> type=bridge
> interface-name=br0
>
> [bridge]
>
> [ipv4]
> address1=192.168.1.46/22,192.168.1.1
> dns=8.8.8.8;
> ignore-auto-dns=true
> method=manual
>
>
> more bridge-slave-enp3s0.nmconnection
> [connection]
> id=bridge-slave-enp3s0
> uuid=1dc997cd-262f-4121-b567-a2c9e91056f2
> type=ethernet
> interface-name=enp3s0
> master=br0
> slave-type=bridge
>
> [ethernet]
>
> [bridge-port]
>
>
> What is not happening with the bridge for Virtual-Manager ? It was working
> till reboot.
>
> Jerry
>


Somehow my network changed from enp3s0 to enp4s0 after the OS update
(slightly scary).
After I noticed that I edited the NetworkManager files - rebooted and seems
I am working again.

Jerry
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