Patent ID: 9521109
Filing Date: 2016-12-13
CPC Classification: H04L

Claim Text:
1. A computer-implemented method for internet protocol (“IP”) address assignment by a dynamic host configuration protocol (“DHCP”) server, the method comprising: receiving, from a client device, a DHCP discovery message for allocation of an IP address; assigning, by a processor, an IP address to the client device for a first lease period based on the DHCP discovery message; providing the IP address that was assigned to the client device; receiving, from the client device, an IP address lease renewal request during the first lease period; determining a length of time the IP address that was assigned is in use by the client device; renewing the first lease period to establish a second lease period that is always longer than the first lease period based on the length of time the IP address that was assigned is in use by the client device; and providing the IP address for the second lease period.