Package: bridge-utils
Version: 1.7-1
Severity: serious
Dear Maintainer,
I’ve upgraded yesterday my server running Debian 10 (Buster) to Debian 11
(Bullseye). The server is hosted by OVH and has both IPv4 and IPv6 connection.
Everything ran seamlessly excepted until I rebooted the server: I lost the IPv4
connection on my bridge interface (IPv6 was still OK).
To clarify my network set-up in /etc/network/interfaces (I don’t have anything
else configured):
auto eno3
iface eno3 inet manual
auto br0
iface br0 inet static
bridge_ports eno3
address XX.XX.XX.XXX0/24
gateway XX.XX.XX.XXX
iface br0 inet6 static
address IPV6_ADDRESS/64
[…] (route related)
After a long time trying to figure out why the server wasn’t answering ping
from outside and couldn’t reach internet through IPv4 while the interface was
up and well configured, it *seems* that some behaviour has changed.
I suspected that the network was blocked because of the different MAC address
between eno3 and br0 (I was able to ping my gateway).
Setting the eno3 MAC address on the br0 interface (with bridge_hw) fixed the
issue.
I haven’t the hardware to reproduce the previous behaviour (how the MAC address
was previously assigned to the bridged interface), and to migrate again from 10
to 11,
but in case this new behaviour effectively come from a change in the Bullseye
package, it could lead to some problems while upgrading.
Hope this helps,
Matthias
-----------------------
-- System Information:
Debian Release: 11.0
APT prefers testing-security
APT policy: (500, 'testing-security'), (500, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 5.10.0-8-amd64 (SMP w/8 CPU threads)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE,
TAINT_UNSIGNED_MODULE
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages bridge-utils depends on:
ii libc6 2.31-12
bridge-utils recommends no packages.
Versions of packages bridge-utils suggests:
ii ifupdown 0.8.36
-- no debconf information
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