MAC Address Conflict with IPv6

I keep getting these conflicts every morning at virtually the same time.

Tried to figure out where its coming from but totally stumped. Found 2 other threads on similar error messages. In one it said (obviously) 2 devices have been manually set to the same IP.

Nothing is set manually on the network. Its all DHCP Reserved. And Peplink still cannot set IPV6 addresses afaik.

I do not even use IPv6 on the network.

Who exactly is “our MAC address”?

And how can I track this down and correct?

Jun 14 05:22:43 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 14 05:22:43 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 14 05:22:41 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 14 05:22:41 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 14 05:22:22 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 14 05:22:22 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 13 05:22:37 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 13 05:22:29 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 12 05:22:36 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 12 05:22:36 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 11 05:22:44 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 11 05:22:44 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 11 05:22:33 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 11 05:22:33 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 11 05:22:32 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 11 05:22:32 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 11 05:22:32 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 11 05:22:32 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 11 05:22:29 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 11 05:22:29 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 11 05:22:28 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 11 05:22:28 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 11 05:22:28 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 11 05:22:28 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 11 05:22:27 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 11 05:22:27 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 11 05:22:26 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 11 05:22:26 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 10 18:59:17 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 10 18:59:17 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 10 18:55:30 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 10 18:55:30 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 10 08:01:56 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 10 08:01:56 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 10 05:22:48 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 10 05:22:48 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 10 00:07:56 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 09 05:22:42 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 09 05:22:38 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 08 05:28:07 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 08 05:28:07 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 08 05:22:51 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 07 05:22:53 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 07 05:22:53 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 07 05:22:47 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
Jun 07 05:22:47 MAC address conflict: Received packet claiming to be from our MAC address 10:56:ca:14:65:78
1 Like