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 Thank you for using reportbug