Weird log messages

[olluz]

Dear all,

I'm getting some strange log messages like:
2025-05-09T22:37:26   Notice   kernel   <5>bridge0: mac address AA:BB:CC:DD:EE:FF vlan 0 moved from igc1 to igc2   
2025-05-09T22:37:26   Notice   kernel   <5>bridge0: mac address BB:CC:DD:EE:FF:AA vlan 0 moved from igc2 to igc1   
2025-05-09T22:37:25   Notice   kernel   <5>bridge0: mac address CC:DD:EE:FF:AA:BB vlan 0 moved from igc2 to igc1   
2025-05-09T22:37:25   Notice   kernel   <5>bridge0: mac address DD:EE:FF:AA:BB:CC vlan 0 moved from igc3 to igc2   
2025-05-09T22:37:25   Notice   kernel   <5>bridge0: mac address DD:EE:FF:AA:BB:CC vlan 0 moved from igc2 to igc3   
2025-05-09T22:37:25   Notice   kernel   <5>bridge0: mac address AA:BB:CC:DD:EE:FF vlan 0 moved from igc1 to igc2   
2025-05-09T22:37:25   Notice   kernel   <5>bridge0: mac address AA:BB:CC:DD:EE:FF vlan 0 moved from igc2 to igc1   
2025-05-09T22:37:24   Notice   kernel   <5>bridge0: mac address DD:EE:FF:AA:BB:CC vlan 0 moved from igc2 to igc3   
2025-05-09T22:37:24   Notice   kernel   <5>bridge0: mac address BB:CC:DD:EE:FF:AA vlan 0 moved from igc1 to igc2   
2025-05-09T22:37:24   Notice   kernel   <5>bridge0: mac address AA:BB:CC:DD:EE:FF vlan 0 moved from igc2 to igc1   
2025-05-09T22:37:24   Notice   kernel   <5>bridge0: mac address EE:FF:AA:BB:CC:DD vlan 0 moved from igc1 to igc2   
2025-05-09T22:37:24   Notice   kernel   <5>bridge0: mac address CC:DD:EE:FF:AA:BB vlan 0 moved from igc2 to igc1   
2025-05-09T22:37:23   Notice   kernel   <5>bridge0: mac address BB:CC:DD:EE:FF:AA vlan 0 moved from igc2 to igc1   
2025-05-09T22:37:23   Notice   kernel   <5>bridge0: mac address BB:CC:DD:EE:FF:AA vlan 0 moved from igc1 to igc2   
2025-05-09T22:37:23   Notice   kernel   <5>bridge0: mac address AA:BB:CC:DD:EE:FF vlan 0 moved from igc2 to igc1   
2025-05-09T22:37:23   Notice   kernel   <5>bridge0: mac address EE:FF:AA:BB:CC:DD vlan 0 moved from igc1 to igc2   
2025-05-09T22:37:23   Notice   kernel   <5>bridge0: mac address CC:DD:EE:FF:AA:BB vlan 0 moved from igc2 to igc1   
2025-05-09T22:37:22   Notice   kernel   <5>bridge0: mac address DD:EE:FF:AA:BB:CC vlan 0 moved from igc3 to igc2   
2025-05-09T22:37:22   Notice   kernel   <5>bridge0: mac address DD:EE:FF:AA:BB:CC vlan 0 moved from igc2 to igc3

What could be the reason for this ?

[cookiemonster]

Do you really have a bridge on OPNSense?
These are arp updates when devices are moving from one interface to another in the bridge.
The mac address is the hardware identifier of the devices connecting to the bridge.

[olluz]

Thanks for the reply.
Yes, I am using a Protectli device ans bridged the port using these instructions.

But why are the interfaces moving back and forth ?

[pfry]

Thanks for the reply.
Yes, I am using a Protectli device ans bridged the port using these instructions.

But why are the interfaces moving back and forth ?

Generally that indicates you have devices connected to multiple member ports of the same bridge (a loopy bridge), e.g. you've plugged your end stations and multiple bridge member interfaces on the firewall into a flat switch (no VLANs).

[cookiemonster]

Or perhaps you have a mesh system plugged in?