Nick Howitt wrote:

Hi Tony,
I suspect the invalid condition can arise from configuring a NIC with a fixed IP, setting up the DHCP server on the NIC then changing the LAN IP/subnet. I'd need to test this scenario. iirc, on routers I've used, in this scenario they have automatically moved the DHCP settings to the IP/new subnet.

Rob, do you know if these two errant NIC's, eth0 and eth1, had previously been configured to use the 192.168.130.0/24 subnet?

Now that I think about it, I installed ClearOS and it defaults to no VLANs to allow you to set it up and connect initially. Then I added the two VLAN subnets so yes, at one point eth0 was on the 130 subnet.

I commented out the two DHCP lines for eth0 and eht1, deleted the eth1 interface from the ClearOS DHCP page. eth0 is also disabled now so it can't sneak in and mess stuff up.

It seems to have worked, I just need to let the leases run out on the clients and we'll see what they get assigned.

Thanks for your help Nick and Tony!

Rob