I love the diagram, I feel like im in a classroom (takes me back oh 30 years).
I am confused, when you say you have 3 dsl lines coming in.
Do you mean you have three public IP addresses to use or three separate modems and lines from the same ISP (which would make no sense in terms of redundancy and throughput - just get one fatter single pipe and a cable ISP for backup redundancy wired, and a third cellular account just in case).
Im confused why you set the router LANIP to .12 when it should be .1 (I dont think it matters but any setups seem to show this sort of nomenclature).
Oh I see youve not used the router as your DHCP device, which I also find confusing. What advantage is to be gained by removing the DHCP functionality at least at the top level from the USG.
The router can also read VLAN tagged data so that should not be an issue.
Im also confused when you say one DSL line for internet only. Well please let me know what other use can you make of a DSL line other than a connection to the internet???????
Or do you mean you only wish VLAN33 users to access the internet and not any internal bits.
Or do you mean that of the three dsl lines VLAN 33 users can only use one of them and the other two for everybody else.....
Why would VLANs be setup to see each other Ithought they were for segmenting groups..........
Bottom line is that your half and half describing requirements with solutions you think that will work and only end up confusing simpletons like me.
What I need is a discussion of your requirements and dont use the words, router, switch, vlan DNS, server. IN other words what are the functional requirements?? What work needs to be done what access to what resources are required to do that work. who is doing the work and what access should they have to the resources.
My sense is that you
a. dont need a separate DHCP server
b. done need vlans.
But will wait for better clarification of your WORK requiremnts.--
Ain't nuthin but the blues! "Albert Collins".
Leave your troubles at the door! "Pepe Peregil" De Sevilla. Just Don't Wifi without WPA, "Yul Brenner"