I just swapped out a old Cisco 3750 and a few Aironet 3602 for a TL-SG2016P and some EAP655. My core router is a Opnsense VM running on Proxmox.

I have a few vlans setup in Opnsense and i'm not using the Omada Controler or software:

vlan1: default 10.1.1.1/24

valn9: DMZ 10.1.9.1/24

vlan10: IOT 10.1.10/24

vlan11: home 10.1.10.1/24

valn12: guest 10.1.12.1/24

I initally had some issue setting up mDNS for Bonjour (Homekit) but finaly managed to get that working bethween vlan10 & 11.

I have setup vlan11 on the EAP655 on eth1 for my AppleTV but for some reason it seems to lose connection and stops respoding in HomeKit. If I connect it over WIFI I have no issue. I connected my laptop and ran Wireshark, I don't see anything wrong. I can see mDNS trafic UDP brodcast to 224.0.0.251:5353

But one things that stange that I see on the EAP vs connected to Eth1 is a tone of IPV6 trafic that is in TCP retransmission. I don't have IPv6 turned on on my laptop and I can't find what that trafic could be.

The web interface to manage the EAP655 is pretty basic, is there a way to turn off IPV6 trafic?