I am looking at this page WiFi - RouterOS - MikroTik Documentation and specifically at the CAP configurations suggested for the wifi-qcom and wifi-qcom-ac packages. What specifically catches my eye is that the wifi-qcom-ac configuration has these lines which are absent from the wifi-qcom configurati…

[image] DuctView: What I don’t understand is how the vLAN on the CAP is configured to the required ethernet ports. Take what I am about to say with a grain of salt as I am a network student still learning but this is so far my understanding on how it all works. Usually no configuration is ne…

[image] TrevinLC1997: Let's pretend you have the Cap AX. Two wifi interfaces and two ethernet ports. If they are all added to the bridge and BUM traffic arrives from wifi1. It will be flooded to wifi2, ether1 and ether2. Wifi2 will drop the traffic if the tagged ID is not the same as what is set…

The basic idea about VLANs is ... that they're (correctly) configured everywhere. And that includes both wifi AP device and upstream switches/routers. The way of doing it as described by @TrevinLC1997 is fine for cAP or wAP devices which typically come with one or two ethernet ports and (at least …

[image] DuctView: This element of configuration is not present in the wifi-qcom configuration. In part, as I understand it, this is because the wifi-qcom package on the CAP allows the CAPsMAN to set the CAP datapath to a vLAN. Actually the other way around but same net result. Wifi-qcom-ac p…

I suggest reading that topic: [image] Using RouterOS to VLAN your network Useful user articles Title: Using RouterOS to VLAN your network Welcome: This article is for system integrators, network administrators, and product enthusiasts looking for the defini…

[image] mkx: The basic idea about VLANs is ... that they're (correctly) configured everywhere. And that includes both wifi AP device and upstream switches/routers. The way of doing it as described by @TrevinLC1997 is fine for cAP or wAP devices which typically come with one or two ethernet port…

[image] holvoetn: Actually the other way around but same net result. Wifi-qcom-ac package is not able to handle VLAN tags through datapath. That's why those wifi interfaces need to be configured on bridge to handle required VLANs properly. Not quite sure what I have got the wrong way about? …

[image] BartoszP: I suggest reading that topic: but you should start with that one, especially #1,#2,#4,#7: Outed me as a noob with vLANs! Fair enough. I know most of these rules. As for the vLAN topic, I have read it before and like most vLAN material out there, it confused the hell out …

Wifi-qcom vs wifi-qcom-ac: understanding a configuration difference

RouterOS General

BartoszP October 19, 2025, 10:04am 6

I suggest reading that topic:

but you should start with that one, especially #1,#2,#4,#7: