Hi,
my firewall logs are full of this:
(https://i.postimg.cc/L4f3yqNC/log1.png)
But there is no such interface in my configuration:
(https://i.postimg.cc/LXVCbnVZ/log2.png)
Is your PPPoE session running over re0, possibly? is there a DSL modem or similar connected to that port? That device might be the source of these broadcast (255.255.255.255) packets.
You are absolutely right. Thank you!