How to have internet in Guest networks in WDS "slave" routers

Hello!
My config:
1xAR750S (192.168.8.1) WDS- AP on 5G.
2xAR750 (192.168.8.2 & .3) attached WDS-client on 5G. Everything is OK.
Guest network named “Guest” (192.168.9.1) on AR750S works OK with internet.
All devices get Internet on all the routers. All connected in the 2,4G network only. Working OK.

I want to make the same name “Guest” network on the 2 AR750 but I can’t having internet with this Guest network when devices are connected to the Guest’s AR750 network .

How to make it work?

Thx

802.11 doesn’t have the notion on VLANs. For a couple, one WDS link per SSID will do it. Any more than a couple and “beacon pollution” can become an issue. Firewalling between VLANs is needed at each router.

Edit: If you don’t need on-link connectivity between the segments, things are a lot easier as you can just route the traffic via your “master” router (assuming you’re using a star topology). The downside is that roaming from AP to AP won’t be “seamless” (need to get new DHCP, all connections drop) and things like mDNS don’t work across network segments.

Thx for the answer jeffsf !
But I still don’t know how to have internet in Guests Network in WDS-linked routers. I’m quite a beginner in OpenWRT…
I have configured Guest network in “master” router as WDS-AP and link as WDS-Client the Guests networks of the WDS-linked routers. Not working… because there is already a WDS-AP and WDS-Clients in same 5Ghz so maybe there is conflicts.
I think I miss something in the config…
Any idea to make it work?
Thx

It’s been a while since I’ve used WDS, but the sketch is as follows

  • Main Router

    • SSID: Private – AP
    • SSID: Guest – AP
    • SSID: Backhaul 1 – AP/WDS
    • SSID: Backhaul 2 – AP/WDS
    • Bridge: Private, Backhaul 1 (and perhaps your LAN)
    • Bridge: Guest, Backhaul 2
  • Secondary Router

    • SSID: Private – AP
    • SSID: Guest – AP
    • SSID: Backhaul 1 – STA/WDS
    • SSID: Backhaul 2 – STA/WDS
    • Bridge: Private, Backhaul 1 (and perhaps your LAN)
    • Bridge: Guest, Backhaul 2

If you run both 2.4 GHz and 5 GHz, then there would be one for each of Private and Guest on each router. The two 2.4 GHz channels on the two different routers can/should be different. All the 5 GHz radios end up being on the same channel, assuming you’re using 5 GHz for the backhaul.

Thx jeffsf ! I will try as you said!
By the way you said " It’s been a while since I’ve used WDS…"
Can i ask you what you use now (in case you have multi-router network)? THX!

Since I’ve got more than a couple VLANs and four devices, WDS and a star topology doesn’t scale well.

I’m using batman-adv on 802.11s, though it has its own set of problems (primarily related to its “abuse” of ARP packets in a managed, heterogeneous network).
https://openwrt.org/docs/guide-user/network/wifi/mesh/batman

Thx!
I was in the good way but my error was to make all GUEST traffic on 5Ghz radio only with WDS only in 5Ghz. All my devices are connected to the 2,4Ghz so that’s why I didn’t have GUEST internet on them.
Bye

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I will try someday batman-adv but I think it’s quite difficult for me now, I’m a beginner in OpenWRT routers-
THX