@antoineT
is it an additional Virtual LAN or WLAN?
For Virtual LAN see this discussion
Virtual LAN Vlan | Swisscom Community
For an additional WLAN use the WLAN guest network
to allow guest WLAN to be also propagated through the WLAN-Box (1 or 2) when this WB is connected to the gateway through an Ethernet switch, you need to setup your switch by doing this:
- access the Zyxel configuration
- allow tagged VLAN 1977 to be forwarded to all ports of the switch
- retry
Please note that guest WLAN is only broadcasted on 2.4GHz, there’s no guest WLAN on 5GHz (neither on IBx or on WBx).
Note that the Swisscom TP-Link switch is more than enough unless you need multi gig capability (with the 2.5Gb/s port of the Internet-Box 3 for example). It performs well and you can set up a lot of things if needed. Obviously it comes pre-configured for Swisscom services like TV over the switch, guest WLAN over a WLAN-Box, Bonding for the Internet-Booster, etc. It’s certainly not the most recent gigabit device on the market but you would likely not get much better performance with a more recent gigabit switch…. last but not least it’s not very expensive
The TP-Link switch is matching your expectations!