If I follow the various guides on setting up a Guest wifi network I can isolate the guest users, but they then of course have no access to my printer. I would like to give them access. Bearing in mind that I am no networking expert, how do I do that?

I thought I could create a separate VLAN with only the port on which the printer is connected assigned to that VLAN, and then use inter-lan routing to allow the guest and internal VLANs to both access this third VLAN. However I then found that no-one could see the printer. The printer was unable to get a valid iIP address from the DHCP server, but even if I gave it a static IP address on this 3rd VLAN, no-one could access it.

Is this the right approach and I am just doing something wrong, or is there a better way to do this?

Harry

I'm guessing that this is a port-based VLAN.

Are they all within the same subnet? Then it should work.
i.e.
VLAN0 - your private devices
VLAN1 - guests

The printer is then in VLAN0 and VLAN1

You are correct! It is just me being stupid. I did have the VLANs on different subnets, but now I have them on the same subnet and it works as I want.

Thanks for your help.

Harry.

Great!

How can you share the printer if the guest and private networks are on different subnets?
I have 3 VLANS
LAN1 - 192.168.1.x - Private
LAN2 - 192.168.2.x - Guest
LAN3 - 192.168.3.x - Printer

I have set up the printer with a static IP address of 192.168.3.2

How can I get users on LAN1 or LAN 2 to see the printer on LAN3?

"See" as in find, you probably can't - you probably have to address the printer manually by IP address on the client PC and make sure the printer VLAN is common to the others.