I'm about to set up a guest network, but only if I can change a few things about their configuration. I'd like them to use a different DNS server or have their traffic routed through a proxy, but I can't figure out how to identify them/route their traffic. I'm fine with them seeing each other and I can switch on/off for seeing my home network when necessary, but this proxy would be very important, but I just can't see a way to identify the users who have logged in via the guest SSID; they seem to be on the same subnet.
Identify/apply special settings to guest network on AC5400X
Model: Archer C5400X
Hardware Version: V1
Firmware Version: 1.1.0 20180904 rel.41828(5553)