US 11,936,617 B2
System and method of applying policy based, targeted prefix advertisements via internet protocol version 6 (IPv6) stateless address auto-configuration (SLAAC) router advertisement (RA) poisoning
Timothy C. Bleidorn, Colorado Springs, CO (US); and Erez Jordan Gottlieb, Denver, CO (US)
Assigned to Charter Communications Operating, LLC, St. Louis, MO (US)
Filed by CHARTER COMMUNICATIONS OPERATING, LLC, St. Louis, MO (US)
Filed on Mar. 14, 2023, as Appl. No. 18/121,187.
Application 18/121,187 is a continuation of application No. 17/726,227, filed on Apr. 21, 2022, granted, now 11,695,729.
Application 17/726,227 is a continuation of application No. 17/246,368, filed on Apr. 30, 2021, granted, now 11,652,785.
Prior Publication US 2023/0216827 A1, Jul. 6, 2023
Int. Cl. H04L 61/5007 (2022.01); H04L 61/5038 (2022.01); H04L 61/5092 (2022.01); H04W 84/12 (2009.01); H04W 88/02 (2009.01)
CPC H04L 61/5007 (2022.05) [H04L 61/5038 (2022.05); H04L 61/5092 (2022.05); H04W 84/12 (2013.01); H04W 88/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for providing different internet protocol (IP) address information to user equipment (UE) devices that are connected to the same local area network (LAN), the method comprising:
operating a default router (DR) in a default operating mode in which the DR sends unsolicited Router Advertisements (RAs) and responds to solicited RAs with non-special treatment;
ceasing sending unsolicited RAs and commencing sending an individual RA with a non-special treatment prefix to each UE link layer address on the network in response to determining that a UE device attached to the network and generated or obtained a base prefix address;
sending an unsolicited RA with a special treatment prefix to allow for Stateless Address Autoconfiguration (SLAAC); and
transitioning back to the default operating mode in response to determining that there are no special treatment UEs present on the network.