Suggestions for DHCP server appliance that supports option82 leases?

So it turns out that the builtin DHCP server in Comware5 products is lacking the ability to hand out (lease) IP addresses based on option82 info.

Which means that I need some additional box for those sites to do this magic.

At first I was thinking of getting 1 (or 2 for redundancy) raspberry pi's with raspbian to use ISC DHCP, the drawback with this is that it takes some effort to get it as you want it to be specially if a less technical person are about to setup this.

That is I would prefer something like a "cisco" image + single conf-file ("startup-config") and thats it.

I have been digging through Google for options but most "DHCP server appliances" I have stumbled upon are just shitty so using the original idea of raspian would be less work to setup from scratch.

Any of you who might have some ideas other than raspbian that could deal with this scenario?

I was looking at https://zeroshell.org/ but that too went into the case of being way more work than just use raspbian.

Another thing I was considering was some ubiquity edgerouter but Im not sure if their builtin DHCP server will fully support leases based on option82 (anyone who have tested?).

My demands are simply:

• DHCP server that can hand out leases based on option82 info.

• One way or another rackmountable.

• No EOL products, must have active updates - preferly without additional cost.

• Easy to setup new devices/sites as in firmware + single conf without having to edit zillions of conf-files manually (think "cisco" firmware + running-config style).

• And no cost (other than the hardware it will be runned on either some slim x86 or preferly raspberry pi or similar).

• Also reliable would be nice since having the DHCP server available will be a single point of failure (if DHCP server goes poff and clients reboots they wont figure out which IP to use).

• Bonus would be if the same DHCP server also supports DHCP6 and DHCP6-PD (because then I could remove the current DHCP6 config in the Comware5 devices and do everything from this single (per site, or 2 in a failover setup) DHCP server).

• And then of course SSH, logging, syncing with external NTP etc.