I hope someone can help me, because this problem has already given me a lot of work and I have tried everything.
I have a router CCR-1009, which more or less randomly (because they can spend several hours without problems), begins to give alerts of a packet received in a bridge port which originates from the same bridge MAC, and therefore a "possible loop"..
In this CCR I have three bridges created, and the problem originates only with one. I already tried to change the MAC of the bridge for a fixed one, also to recreate the bridge again with another MAC, also try to update the router's firmware, change cables and connections. in short, I analyzed every possible point of failure.bridge port received packet with own address as source address (xx:xx:xx:xx:xx:xx), probably loop
I made a capture of the package that generates the "possible loop" to see it with Wireshark. The received packet originates from the MAC of the Bridge, and by destination the MAC 55: 55: 55: 55: 55: 5d and the protocol is 0xcc2d
In the CCR create rules to detect and filter any packet entering or leaving or crossing the router that was of type cc2d, the rules work .. they detect it make the "drop" but still the router generates the alert message by the loop
Please, if someone has an idea that may be happening ... I would appreciate it if you could help me.