SOLVED: DHCP keeps dishing IPs already used in static mappings

[hanse]

Hi all

I have a persistent problem that I just cannot seem to get rid of. I have added a bunch of static mappings for servers (Like Docker Swarm nodes) that I want to have the same IPs all the time. Problem is, whenever I create a new VM or container on Proxmox, it will be issued with an address that is already used in a static mapping.

See attachment.

Any idea how I can get rid of this problem? What am I doing wrong?

TIA.

[Patrick M. Hausen]

Static mappings and your dynamic range must not overlap.

[hanse]

Sorry but I don't understand why not? Adding a static lease is supposed to reserve an IP in the pool for exactly this case? Or should I create a smaller pool, and then add static mappings from higher up in the range for example?

[franco]

Simple: because isc-dhcp will hand out dynamic leases and doesn't care that it also has a static lease.


Cheers,
Franco

[hanse]

OK thank you for the clarification. TIL.