公开(公告)号：US20250126091A1

公开(公告)日：2025-04-17

申请号：US18909072

申请日：2024-10-08

Applicant: Cisco Technology, Inc.

Inventor： Balaji Sundararajan ,  Ajeet Pal Singh Gill ,  Sampath Sthothra Bhasham ,  Satish Kumar Mahadevan ,  Madhusudan V. Gindi ,  Tahir Ali

IPC: H04L61/256 ,  H04L12/46

Abstract: A process can include determining a plurality of Network Address Translation (NAT) routes associated with respective edge routers included in a same virtual private network (VPN) for communicating with a software-defined wide area network (SDWAN). A process can include identifying a first subset of the plurality of NAT routes as mapped to a first public NAT address included in a NAT pool associated with the VPN. A process can include tagging each NAT route of the first subset with a tag value indicative of a preferred router for receiving return traffic of the respective NAT route. A process can include routing traffic on a respective NAT route of the plurality of NAT routes based on applying, at an SDWAN controller, a corresponding control policy matching the tag value of the respective NAT route.

公开(公告)号：US12199942B1

公开(公告)日：2025-01-14

申请号：US18484897

申请日：2023-10-11

Applicant: Cisco Technology, Inc.

Inventor： Balaji Sundararajan ,  Ajeet Pal Singh Gill ,  Sampath Sthothra Bhasham ,  Satish Kumar Mahadevan ,  Madhusudan V. Gindi ,  Tahir Ali

IPC: G06F15/16 ,  H04L12/46 ,  H04L61/256

Abstract: A process can include determining a plurality of Network Address Translation (NAT) routes associated with respective edge routers included in a same virtual private network (VPN) for communicating with a software-defined wide area network (SDWAN). A process can include identifying a first subset of the plurality of NAT routes as mapped to a first public NAT address included in a NAT pool associated with the VPN. A process can include tagging each NAT route of the first subset with a tag value indicative of a preferred router for receiving return traffic of the respective NAT route. A process can include routing traffic on a respective NAT route of the plurality of NAT routes based on applying, at an SDWAN controller, a corresponding control policy matching the tag value of the respective NAT route.