That is an interesting possibility. I do not know enough detail about that device to offer anything authoritative. My opinion is that it might be possible that it is your solution but I think it is not likely. Here is what I think, based on the link you provided:
- the device is primarily for providing connectivity for wireless users. There is an assumption that support would include doing NAT - at least for the subnet it provides for wireless users.
- the device does provide 4 connections for wired Ethernet. So possibly you could connect your switch to one of the ports.
- if you do connect your switch to one of those ports, then the question becomes whether the port acts as an access port (most likely the case) or acts as a trunk. From your perspective you would like it to be a trunk (one connection for all vlans) but I suspect this is not the case. The alternative might be to connect an access port in vlan 10 to one port, an access port in vlan 20 to another port, and an access port in vlan 30 to another port. If you try this we do not know if the device would keep the vlans separated or would just treat tham as all in a single vlan.
You can give it a try. But my guess is that this is not the solution that you need.
HTH
Rick
