I had the same problem. System bridge (bridge0) worked fine, but not the new bridge1 I created. The bridge would receive packets (I verified it with tcpdump) from both the physical interface and the bridge-attached lnkxxxxxxxxxxx interface. It would then bridge packets in the direction lnkxxxxxxxxxxx -> physical, but no the other way around.
Configuration in Cockpit:
- bridge1:
- ipv4 disabled, ipv6 ignore, mtu auto
- In terminal, as root:
# ip link set bridge1 type bridge vlan_filtering 1
# echo 16384 > /sys/class/net/bridge1/bridge/group_fwd_mask
(add the group_fwd_mask thing while you're at it, so you get lldp packets).
Configuration in CML:
- Snooped and protected disabled
Not sure what made it work (I suspect setting vlan_filtering to 1, however bridge0 has it set to 0 and it works).
Then everytime I changed something I would wipe the external connectors, or delete and create them, just in case. Keep trying, it'll work in the end, but everything bridge-related seems a bit messy compared to e.g. gns3.
