US 12,323,382 B2
Systems and methods for translating IPV6 packets for DIA in an SD-WAN environment
Changhong Shen, Shanghai (CN); Sampath Kumar, Santa Clara, CA (US); Ruozhong Xuan, San Ramon, CA (US); Yin Wang, Shanghai (CN); Madhu Gindi, Sunnyvale, CA (US); Garima Pal, Milpitas, CA (US); and Vincent Li, San Jose, CA (US)
Assigned to CISCO TECHNOLOGY, INC., San Jose, CA (US)
Filed by Cisco Technology, Inc., San Jose, CA (US)
Filed on Dec. 26, 2023, as Appl. No. 18/396,214.
Application 18/396,214 is a continuation of application No. 17/689,051, filed on Mar. 8, 2022, granted, now 11,863,515.
Claims priority of provisional application 63/265,248, filed on Dec. 10, 2021.
Prior Publication US 2024/0137335 A1, Apr. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 9/40 (2022.01); H04L 45/748 (2022.01); H04L 61/2514 (2022.01); H04L 101/35 (2022.01); H04L 101/659 (2022.01)
CPC H04L 61/2514 (2013.01) [H04L 45/748 (2013.01); H04L 63/0272 (2013.01); H04L 2101/35 (2022.05); H04L 2101/659 (2022.05)] 20 Claims
OG exemplary drawing
 
1. A network element comprising one or more processors and one or more computer-readable non-transitory storage media coupled to the one or more processors and including instructions that, when executed by the one or more processors, cause the network element to perform operations comprising:
determining a common prefix pool from a transport interface associated with a transport virtual private network (VPN);
identifying a prefix associated with a service VPN;
generating an IPV6-to-IPv6 Network Address Translation (NAT66) prefix translation using the common prefix pool and the prefix, wherein the NAT66 prefix translation comprises a predetermined prefix length;
automatically installing the NAT66 prefix translation into a translation table; and
refreshing a predetermined session time period associated with the NAT66 prefix translation each time a packet is translated using the NAT66 prefix translation within the predetermined session time period.