@moji said in Question about inter-Vlan traffic and interface Concept:
1- I suspect this is an issue with tagged and untagged traffic
or its just that AP doesn't have a gateway.. To access a device on another network, that device has to know how to talk back to the source network.
Validate your AP gateway set to pfsense on the network its on. If you can not do that in this AP, then you could aways source nat your traffic so it looks like pfsense IP on that network is talking to it, and not the remote IP of your client your wanting to use to access the AP gui.
soho wifi router are known for this problem, where the native firmware doesn't allow you to set a gateway on the lan interface