I'm installing the network in an office building that will be used as co-working space by multiple smaller companies.
Since I was hoping to isolate traffic from the different companies I purchased hardware which (supposedly) has VLAN support:
- TP-Link ER-5120 broadband router
- TP-Link TL-SG3424 L2 switch
- Linksys LAPAC 1750 802.11AC access points
The creation of company SSIDs on the Linksys and assigning them to VLAN IDs created on the L2 switch works fine. However, clients in this VLAN don't get an IP address from the router. The router doesn't know how to handle the VLANs.
The ER-5120 apparently has port-based VLAN support but does that mean it can't trunk the VLANs over a single cable? I only have 4 LAN ports on the router which is not enough for the number of VLANs that I need.
According to this doc on the TP-Link website I need to include a managed L3 switch, which (from TP-Link) costs more than all the equipment I already purchased :(
My question is whether I'm overlooking something. And if I really need an L3 switch for this configuration, could I also use a much cheaper model like HP's 1920 8-port L3 switch, or the Edgeswitch Lite from Ubiquity?