KEA DHCP Subnets and DNS over TLS Question

[phantomsfbw]

So I have a question about the DNS settings for KEA, but I have to start with ISC DHCPv4 to get to the question.  When using ISC DHCPv4 under the LAN settings you don't list your DNS servers if you are going to use DNS over TLS under UNBOUND.

So I thought the parallel might be true if using KEA as KEA also has a DNS Subnet section.  So when I setup KEA initially, I added a DNS under the subnet entry as I did not want to chance wrecking my network access.  That seems to have worked fine, but it bugged me that KEA settings were a bit different so I took a chance and removed the DNS setting under KEA.  Everything worked fine, both wired and wireless.  Woke up this morning to find wireless access had quit working, but wired was just fine, so I went back into the KEA subnet setting and re=added the DNS entry.  Wireless network came back up. 

Not sure what is truly happening where I get wired but not wired DNS in this situation.  Also makes me wonder if DNS over TLS is actually functioning given the settings between ISC DHCPv4 and KEA are not parallel in this sense.

I do have my switches set to DHCP, but use the KEA reservations to give them each a specific IP address.  I have done the same thing with the wireless access ports too.

So what happened to KEA DHCP when I made the change to remove my DHCP IP address from the KEA Subnet setting, which in this case is the router IP?

[DEC670airp414user]

I am using dns over TLS integrated in the latest business release
just yesterday I decided to turn off ISC and enable kea on both vlans. (after manually adding my static mappings in Kea)

it works perfectly.   I do suggest rebooting the firewall after you have seen a few devices show up under leases to clear them from the ISC leases

[phantomsfbw]

I am on the developer release, so suspect there might be some differences as the business release might actually be newer in some cases at this point. 

[DEC670airp414user]

You may want to post that in the correct forum if there is one