Messages in this thread | | | From | Frank Wunderlich <> | Subject | [BUG] vlan-aware bridge breaks vlan on another port on same gmac | Date | Fri, 20 Jan 2023 17:45:35 +0100 |
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Hi,
noticed a bug while testing systemd, but it is reproducable with iproute2
tested on bananapi-r2 with kernel 5.15.80 and bananapi-r3 with kernel 6.2-rc1, both use mt7530 dsa driver but different configs (mt7530 vs. mt7531). have no other devices to test.
first create vlan on wan-port (wan and lan0 are dsa-user-ports on same gmac)
netif=wan ip link set $netif up ip link add link $netif name vlan110 type vlan id 110 ip link set vlan110 up ip addr add 192.168.110.1/24 dev vlan110
vlan works now, other side pingable, vlan-tagged packets visible in tcpdump on both sides
now create the vlan-sware bridge (without vlan_filtering it works in my test)
BRIDGE=lanbr0 ip link add name ${BRIDGE} type bridge vlan_filtering 1 vlan_default_pvid 1 ip link set ${BRIDGE} up ip link set lan0 master ${BRIDGE} ip link set lan0 up
takes some time before it is applied and ping got lost
packets are received by other end but without vlan-tag
regards Frank
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