Windows Server DHCP lease cleanup

Tiny piece of housekeeping, note for self for future use.

Previous reservations are wedged in the DHCP database, and not accessible through the DHCP MMS snap-in. Scope reconciliation shows the rogue entries.

Solution is to delete the reservations from the DHCP database.

Show all DHCP clients, i.e active leases and reservations

NETSH DHCP SERVER SCOPE [scope] SHOW CLIENTS

Remove individual, expired reservations

NETSH DHCP SERVER SCOPE [scope] DELETE LEASE [IP ADDRESS]

I could have done this with PowerShell, but NETSH was fast and easy.