公开(公告)号：US20240244028A1

公开(公告)日：2024-07-18

申请号：US18620619

申请日：2024-03-28

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Pradeep Kumar Kathail ,  Eric Levy-Abegnoli ,  David A. Maluf

IPC: H04L61/2503 ,  H04L61/4511

CPC classification number: H04L61/2503 ,  H04L61/4511

Abstract: Techniques for using Network Address Translation (NAT), Mobile Internet Protocol (MIP), and/or other techniques in conjunction with Domain Name System (DNS) to anonymize server-side addresses in data communications. Rather than having DNS provide a client device with an IP address of an endpoint device, such as a server, the DNS instead returns a virtual IP (VIP) address that is mapped to the client device and the endpoint device. In this way, IP addresses of servers are obfuscated by a virtual network of VIP addresses. The client device may then communicate data packets to the server using the VIP address as the destination address, and a virtual network service that works in conjunction with DNS can convert the VIP address to the actual IP address of the server using NAT and forward the data packet onto the server.

公开(公告)号：US20230179579A1

公开(公告)日：2023-06-08

申请号：US18104603

申请日：2023-02-01

Applicant: Cisco Technology, Inc.

Inventor： David A. Maluf ,  Srinath Gundavelli ,  Pascal Thubert ,  Pradeep Kumar Kathail ,  Eric Levy-Abegnoli ,  Eric Voit ,  Ali Sajassi

IPC: H04L9/40 ,  H04L61/2521 ,  H04L61/4511

CPC classification number: H04L63/0421 ,  H04L61/2525 ,  H04L61/4511

Abstract: Techniques for using Network Address Translation (NAT), Mobile Internet Protocol (MIP), and/or other techniques in conjunction with Domain Name System (DNS) to anonymize server-side addresses in data communications. Rather than having DNS provide a client device with an IP address of an endpoint device, such as a server, the DNS instead returns a random IP address that is mapped to the client device and the endpoint device. In this way, IP addresses of servers are obfuscated by a random IP address that cannot be used to identify the endpoint device or service. The client device may then communicate data packets to the server using the random IP address as the destination address, and a gateway that works in conjunction with DNS can convert the random IP address to the actual IP address of the server using NAT and forward the data packet onto the server.

公开(公告)号：US11467252B2

公开(公告)日：2022-10-11

申请号：US16740111

申请日：2020-01-10

Applicant: Cisco Technology, Inc.

Inventor： David A. Maluf ,  David Delano Ward

IPC: G01S7/41 ,  G01S13/87 ,  G01S13/58 ,  G01S13/00

Abstract: In one embodiment, a service receives signal data indicative of phases and gains associated with wireless signals received by one or more antennas located in a particular area. The service determines, from the received signal data, changes in the phases and gains associated with the wireless signals. The service estimates a direction of motion of one or more objects located in the particular area, based on the determined changes in the gains associated with the wireless signals. The service estimates a total mass of the one or more objects located in the particular area based on a ratio of the determined changes in the gains associated with the wireless signals over the determined changes in the phases associated with the wireless signals.

公开(公告)号：US11410522B2

公开(公告)日：2022-08-09

申请号：US16740176

申请日：2020-01-10

Applicant: Cisco Technology, Inc.

Inventor： David A. Maluf ,  David Delano Ward

IPC: G08B21/04 ,  H04B17/309 ,  H04W88/08

Abstract: In one embodiment, a service receives signal characteristic data indicative of characteristics of wireless signals received by one or more antennas located in a particular area. The service identifies an object in the particular area, based on the received signal characteristic data. The service associates the identified object with an object kinematics model. The service updates the object kinematics model over time by applying Bayesian inference to changes in the signal characteristic data.

公开(公告)号：US10296301B2

公开(公告)日：2019-05-21

申请号：US15176912

申请日：2016-06-08

Applicant: Cisco Technology, Inc.

Inventor： David A. Maluf ,  Todd M. Baker ,  Haihua Xiao ,  Yi Wang ,  Ashutosh A. Malegaonkar ,  Yajun Zhang

IPC: G06F9/44 ,  G06F8/34 ,  H04L12/24 ,  G06F8/30

Abstract: According to one or more embodiments of the disclosure, thing discovery and configuration for an Internet of Things (IoT) integrated developer environment (IDE) is shown and described. In particular, in one embodiment, a computer operates an IoT IDE that discovers real-world physical devices within a computer network that are available to participate with the IoT IDE. The IoT IDE may then determine a respective functionality of each of the real-world physical devices, and virtually represents the real-world physical devices as selectable options within the IoT IDE for an IoT application, where a respective virtual representation of each of the real-world physical devices is configured within the IoT IDE with the corresponding respective functionality of that real-world physical device. Simulating the IoT application within the IoT IDE then relays input and/or output (I/O) between the IoT IDE and a selected set of real-world physical devices according to their corresponding respective functionality.

公开(公告)号：US20180316700A1

公开(公告)日：2018-11-01

申请号：US15497806

申请日：2017-04-26

Applicant: Cisco Technology, Inc.

Inventor： David A. Maluf ,  Raghuram S. Sudhaakar ,  Sanjiv Doshi

IPC: H04L29/06 ,  G06N99/00 ,  H04L12/40 ,  H04L29/08 ,  H04L12/66

CPC classification number: H04L63/1425 ,  G06N5/046 ,  G06N20/00 ,  H04L12/40 ,  H04L12/66 ,  H04L63/1416 ,  H04L63/145 ,  H04L2012/40215

Abstract: In one embodiment, a device in a serial network determines that a suspicious event has occurred in the network. The suspicious event is identified based on timing information for one or more frames in the serial network. The device assesses whether the suspicious event is malicious by evaluating a sequence of events in the network that precede the suspicious event. The device causes a mitigation action to be performed in the network when the suspicious event is deemed malicious.

公开(公告)号：US09838454B2

公开(公告)日：2017-12-05

申请号：US14325776

申请日：2014-07-08

Applicant: Cisco Technology, Inc.

Inventor： Vijaynarayanan Subramanian ,  Raghuram S. Sudhaakar ,  David A. Maluf

IPC: H04L29/06 ,  H04L29/08 ,  G06F17/30 ,  H04L12/24

CPC classification number: H04L65/605 ,  G06F17/3051 ,  H04L41/0246 ,  H04L67/12 ,  H04L69/22

Abstract: Information describing a rule to be applied to a traffic stream is received at an edge network device. The traffic stream is received at the edge network device. A schema is applied to the traffic stream at the edge network device. It is determined that a rule triggering condition has been met. The rule is applied to the traffic stream, at the edge network device, in response to the rule triggering condition having been met. At least one of determining that the rule triggering event has taken place or applying the rule is performed based on the applied schema.

公开(公告)号：US09806974B2

公开(公告)日：2017-10-31

申请号：US14532273

申请日：2014-11-04

Applicant: Cisco Technology, Inc.

Inventor： Vijaynarayanan Subramanian ,  Raghuram S. Sudhaakar ,  David A. Maluf

IPC: G06F15/173 ,  H04L12/26 ,  H04L29/06 ,  H04L29/08

CPC classification number: H04L43/0876 ,  H04L65/80 ,  H04L67/12 ,  H04L69/22

Abstract: Information describing a rule to be applied to a traffic stream is received at an edge network device. The traffic stream is received at the edge network device. A preliminary data analysis of the traffic stream is performed at the edge network device in accordance with the rule. A determination is made that further analysis of the traffic stream should be performed from a result of the preliminary analysis. The traffic stream data is sent to another network device for further analysis.

公开(公告)号：US20230370813A1

公开(公告)日：2023-11-16

申请号：US17742160

申请日：2022-05-11

Applicant: Cisco Technology, Inc.

Inventor： Huy Phuong Tran ,  Nicholas Paul Schnorr ,  David A. Maluf

IPC: H04W4/02 ,  H04W48/16

CPC classification number: H04W4/027 ,  H04W48/16

Abstract: Object movement detection may be provided. Channel State Information (CSI) data may be obtained. The CSI data may be associated with a plurality of links between a plurality of Access Points (APs) that provide coverage to an area. Next, a plurality of features may be extracted from the CSI data. The plurality of features may then be converted to a plurality of scores. Then motion in sub-areas of the area may be classified based on a comparison of the plurality of scores to a threshold for the area. The threshold may be determined based upon data collected when no motion occurred in the area.

公开(公告)号：US11683772B2

公开(公告)日：2023-06-20

申请号：US17249792

申请日：2021-03-12

Applicant: Cisco Technology, Inc.

Inventor： David A. Maluf ,  Alexander X. Ke ,  Amr Elnakeeb

IPC: H04W56/00

CPC classification number: H04W56/0035 ,  H04W56/001

Abstract: Embodiments include detection of physical events associated with a wireless network, where the detected physical events are associated with the measurable effects on radio signals between devices in the wireless network. The detected physical event and associated radio signal information is used to provide precise low cost time synchronization for a device in a network.