I’m using a Peplink Balance One core with firmware 8.1.1. My ISP just informed me that they are seeing not only the MAC addresses of my WAN ports of my Peplink router but also the MAC addresses of the 12 other devices I have connected to my router. They had terminated my service as they said some of their other customers were receiving DHCP requests from my router. So I upgraded the firmware and factory reset it. I set up my two WAN connections (one with static IP and one with PPPoE) both with “NAT routing mode”, changed admin password and internet is working fine but ISP tells me they can still see the MAC addresses of my devices connected to the Peplink.
How do I stop this from happening?