You're right, it's even more confusing now.

I only used the webconfig to set up the server but you're right, since both eth1 and eth0 aren't in use they're both listed as "Invalid" in the DHCP settings. I've never set up DHCP on them so I'm not sure where those entries came from.

Can I safely delete the DHCP ranges/entries for eth1 and eth0 without messing up my nice vlans?