Package: bridge-utils Followup-For: Bug #868220 Looks like bridge-utils already does it in: /lib/bridge-utils/ifupdown.sh
# Activate VLAN filtering on VLAN aware bridges if [ "$IF_BRIDGE_VLAN_AWARE" = "yes" ]; then ip link set dev $IFACE type bridge vlan_filtering 1 else ip link set dev $IFACE type bridge vlan_filtering 0 fi the problem is I get operation not supported when setting vlan_filtering 0 on my bridge, does the else really make sense here? Regards -- System Information: Debian Release: bullseye/sid APT prefers unstable APT policy: (500, 'unstable') Architecture: amd64 (x86_64) Kernel: Linux 4.19.0-9-amd64 (SMP w/8 CPU cores) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: sysvinit (via /sbin/init) Versions of packages bridge-utils depends on: ii libc6 2.30-8 bridge-utils recommends no packages. Versions of packages bridge-utils suggests: ii ifupdown 0.8.35+b1