Vmware, Inc.

Sourabh Bhattacharya

Awan Kumar Sharma

Yong Wang

Sarthak Ray

Deepika Kunal Solanki

Bhargav Puvvada

Mayur Katke

Jochen Behrens

Shailesh Urhekar

Manmeet Khurana

Some embodiments provide a method that identifies multiple paths between a first site and a second site. A security association (SA) is established for transmitting encrypted payload from the first site to the second site in a virtual private network (VPN) session. The method selects a path based on metrics that are obtained for the paths. The selected path is defined by a first endpoint address of the first site and a second endpoint address of the second site. The method sends a message from the first site to the second site to update the SA to switch from using an original path to using the selected path. The message indicates the first and second endpoint addresses. The method transmits a packet including a payload that is encrypted according to the updated SA.

Dynamic path selection of VPN endpoint

Some embodiments provide a method that collects metrics for one or more paths of a first tunnel implementing a first security association (SA) and for one or more paths of a second tunnel implementing a second SA. The method selects a path based on the collected metrics of the paths of the first and second tunnels. When the selected path belongs to the first tunnel, the method encrypts data transmitted as encrypted payload of the first SA and transmits the encrypted payload in the first tunnel. When the selected path belongs to the second tunnel, the method encrypts data to be transmitted as encrypted payload of the second SA and transmits the encrypted payload in the second tunnel.

Multi-uplink path quality aware IPsec

A method for IPSec communication between a source machine and a destination machine is provided. The method includes receiving, at the destination machine, first and second packets from the source machine through first and second VPN tunnels established between a first VTI of the source machine and a second VTI of the destination machine; determining the first packet corresponds to a first SA and the second packet corresponds to a second SA; processing, by a first processing core, the first packet based on the first SA, and processing, by a second processing core, the second packet based on the second SA; and updating, at the second VTI, states of one or more flows based on the first and second packets, the second VTI providing one or more stateful services for the one or more packet flows based on the one or more states.

Security association bundling for an interface

Described herein are systems, methods, and software to manage processing queue allocation based on addressing attributes of an inner packet. In one implementation, a first gateway identifies processing queues at a second gateway and assigns a unique flow label to each of the processing queues. The first gateway further receives a packet from a computing node that is directed toward the second gateway. The first gateway hashes addressing information in the packet to select a flow label, encapsulates the packet with the flow label in the outer encapsulation header for the encapsulated packet, and forwards the packet toward the second gateway.

Managing processing queue allocation based on addressing attributes of an inner packet

Certain embodiments described herein are relate to a method for dynamically rekeying a security association. The method includes establishing, by a destination tunnel endpoint (TEP), an in-bound security association with a source TEP, with a first security parameter index (SPI) value, for encrypting data packets communicated between the source TEP and the destination TEP. The method further includes rekeying, by the destination TEP, the in-bound security association, the rekeying including generating a second SPI value for replacing the first SPI value based on a trigger event relating to at least one of a real-time security score of the in-bound security association, a number of security associations assigned to a compute resource that the in-bound security resource is assigned to, an amount of load managed by the compute resource that the in-bound security resource is assigned to, and an indication received from an administrator.

Dynamic rekeying of IPSec security associations

Described herein are systems, methods, and software to manage replay windows in multipath connections between gateways. In one implementation, a first gateway may receive a packet directed toward a second gateway and identify a path from a plurality of paths to the second gateway. Once identified, the first gateway may increment a sequence number associated with the path and encapsulate the packet with a unique identifier for the path in the header with the incremented sequence number. The first gateway the communicates the encapsulated packet to the second gateway.

Managing replay windows in multipath connections between gateways

Described herein are systems, methods, and software to manage maximum segment size (MSS) values associated with multiple tunnels according to an implementation. In one implementation, a gateway may obtain a Transmission Control Protocol (TCP) synchronize (SYN) packet from a computing node. The gateway may identify a tunnel associated with the TCP SYN packet, determine a maximum segment size (MSS) value based on the overhead associated with the tunnel, and replace a first MSS value in the TCP SYN packet with the MSS value determined by the gateway. Once added, the gateway may encapsulate the TCP SYN packet and communicate the packet to a second gateway.

Managing transmission control protocol (TCP) maximum segment size (MSS) values for multiple tunnels supported by a computing site gateway

Certain embodiments described herein are generally directed to systems and methods for deterministic load balancing of processing encapsulated encrypted data packets at a destination tunnel endpoint. For example, certain embodiments described herein relate to configuring a destination tunnel endpoint (TEP) with an encapsulating security payload (ESP) receive side scaling (RSS) mode to assign each incoming packet, received from a certain source endpoint (EP), to a certain RSS queue based on an identifier that is encoded in an SPI value included the packet.

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Pune, India

Sourabh Bhattacharya