Need help syncing my two DHCP instances

[ocr99]

Hi everyone,

I have two Pi-hole instances with DHCP enabled, each operating on a different IP range. I've set up synchronization between them, and it's working well overall. However, I've noticed that the active DHCP leases are only synced one-way, from the master to the replica.

This causes a problem: if the replica assigns an IP address, the master doesn't recognize it, and during the next sync, the master overwrites the lease list on the replica, effectively removing the lease that was handled by the replica. As a result, the replica is unable to manage that IP properly.

Is there any way to implement a two-way sync for active DHCP leases, so both instances are aware of all assigned IPs regardless of which one handled the assignment?

Thanks in advance!

[lovelaze]

Hi @ocr99

Nebula-sync is not designed to handle two-way synchronization, so what you're looking for is unfortunately not supported.

I'm not sure this solves your use case, but you can skip syncing your dhcp leases by using the manual mode:

FULL_SYNC=false
...
SYNC_GRAVITY_DHCP_LEASES=false

[ocr99]

Hi,

I'm actually running that same setup, I was just wondering if there was a "cleaner" way to visualize all DHCP leases in the main Pi-hole, since sometimes my secondary instance is the one assigning the IPs.

Thanks anyway!