Our router is connected to an Omada controller (version 4.4.4, build 1.9.1 Build 20210721 Rel.39263), and I have configured the VPN as L2TP with IPSec encryption. I don't see any options to limit the...

This ought ot be a simple task, but I've taken over the administration of an existing network, so I may just be too inexperienced with this router. I need to set up a DHCP server on a separate Linux...