Good evening all. I am looking for some guidance on a proposed mesh setup. I have 3 TP-Link Deco S4 that I would like to install OpenWrt. Right now, they are running stock firmware in AP mode as I have the main Deco connected to an OPNSense router. I would like to use OpenWrt to have 3 SSIDs - one for regular LAN, one for IOT devices and one for guests. I’d like to set up 3 VLANs to separate the traffic (and have rules on the OPNSense router to keep each VLAN separate). So, each of the Decos would still be an access point - one hardwired to the router and the other two as Wi-Fi mesh nodes.
I see a lot of videos on how to set up a mesh but it assumes one of the nodes would be a router. I am looking for some guidance for the setup of all 3 as an AP with multiple SSIDs. Is it as simple as setting up 3 SSIDs with their own VLAN and setting up an 802.11s mesh with the interface tagged with each VLAN? Do I need to look at Batman-Adv? I’m probably missing something or have got my understanding all wrong so any help would be appreciated.
Thank you in advance.