Yes I am using 192.168.0.0/24 I have no devices from those manufacturers.
This was not the response I wanted to hear, changing the LAN is a major(!) Can you clarify the nature of the pfSense ARP cache? Is it relevant? (I am not convinced that it is - either the ARP packet is correct or it isn't) Should the ISP be responsible for the integrity of its network and ensuring rogue ARP traffic is eliminated? Should the ISP respond to requests to remove devices off the network with erroneous ARP traffic, as identified by the devices MAC address from pfSense logs? That could clean things up? Thank you Bill for assisting me. Kind regards David Hingston Is 192.168.0.0/24 your LAN segment? If so, I'd suggest moving off it. It sounds to me like something on your WAN is using the 192.168.0.0/24 segment (or there's a couple asshat's out there spamming bogus gratuitous ARPs on that wire). Your first mac listed is probably a switch or other network device: http://www.coffer.com/mac_find/?string=00%3A00%3Acd%3A1c%3A14%3A1a Allied Telesyn Researh (was: Centrecom Systems) (was: Teltrend (nz) Limited) The second mac listed is probably a Wii: http://www.coffer.com/mac_find/?string=00%3A09%3Abf%3A55%3A71%3Ab0 Nintendo Co.,Ltd. --Bill
