Patent ID: 6859826

Claim:
A method of operating a provisioning server to transfer a plurality of old leases and an old gateway lease to a plurality of new leases and a new gateway lease respectively, the method comprising: creating a temporary gateway lease aligned with a predetermined renumbering time that is later than all expiration times of the plurality of old leases; creating a plurality of temporary leases that continue beyond the predetermined renumbering time; transferring the plurality of old leases to the plurality of temporary leases respectively as each old lease of the plurality of old leases is renewed; transferring the old gateway lease to the temporary gateway lease in response to the old gateway lease renewing; transferring the temporary gateway lease to the new gateway lease at the predetermined renumbering time; and transferring each temporary lease of the plurality of temporary leases to a new lease of the plurality of new leases respectively as each temporary lease reaches a predetermined event after the predetermined renumbering time.