I got problem on my network.
I built all with RB1100 ----> AP Radio (all mikrotik) ----> Switch —> Wifi router (User PPPoe)
On our client router set 2 SSID, one ssid for regular wifi and other for hotspot user with VLAN 250.
ON my RB1100 we use bridge for ETH6-ETH9
After several months we got this error:
ether8 excessive broadcasts/multicasts, probably a loop
ether8: bridge port received packet with own address as source address (c4:ad:34:71:ac:5e), probably loop—> thats mac from ETH6
This error become slowing the network and then i cut the bridge but that trafic is still there unti now.
THis is result form tools sniff
Thanks in Advance for your Help
Regards,
John
I have also observed such traffic in the management VLAN99 between two bridge1 on hap ac3 (1E:00:00:00:00:01) and Audience (1E:00:00:00:00:02).
Does anyone know what is generating this traffic?
I can tell you that the source of this traffic is the Mikrotik itself. It is the Mikrotik proprietary ROMON protocol. Note that 35007 in hex is 0x88bf, and "RoMON packets are encapsulated with EtherType 0x88bf and dst-MAC 01:80:c2:00:88:bf" (see Wiki).
The problem is not the existence of this traffic, it's that a "bridge port received packet with own address as source address (c4:ad:34:71:ac:5e), probably loop", exactly as the error message says: this indicates a network loop that is bringing the router's own sent traffic back to it.
