935 results about "MAC address" patented technology

Devices, networks, systems, methods, and processes for packet forwarding and routing are described herein. A leaf switch can be in communication with a host device. The leaf switch may configure a subnet comprising the host device. The leaf switch can assign a next hop interface as a system port of the leaf switch and generate subnet information indicative of the assignment. The leaf switch may distribute the subnet information to one or more network devices through one or more internal Border Gateway Protocol sessions. A data packet destined to the host device can be transmitted to the system port of the leaf switch when a host Media Access Control (MAC) address of the host device is not resolved. The leaf switch can resolve the host MAC address and transmit the data packet to the host device based on the host MAC address.

Disclosed are a method and an apparatus for service fast switchover. The present disclosure may be applied in a spine-leaf architecture, wherein the method may be applied to a backbone spine node. The backbone spine node may loop back a data packet sent through a port connected to a faulty member path from Equal Cost Multi Paths (ECMPs) to which the faulty member path belongs, select one fast switchover member path from the ECMPs prior to routes in a network with the ECMPs converging, determine an access node connected to the fast switchover member path as a next hop, perform layer 3 forwarding on the data packet and encapsulate a specified Media Access Control, MAC, address as a destination MAC address, and send the data packet, with the specified MAC address as the destination MAC address, to the next hop through the fast switchover member path.

The invention relates to the technical field of anti-counterfeiting verification, in particular to an embedded equipment anti-counterfeiting verification method based on hardware fingerprints and double encryption, which comprises the following steps of: analyzing a CPU unique identification number generated by starting for the first time, adjusting a sequence and splicing a software version, judging ciphertext content and synchronizing the ciphertext content to an activation end and an EEPROM (Electrically Erasable Programmable Read-Only Memory), and decrypting a comparison data field. And decrypting the verification parameter group, the timestamp and the MAC address to obtain an authorization parameter verification result. According to the method, hardware fingerprint deep processing and multi-factor data encryption are fused, in the identity feature generation and storage process, the multi-dimensional identification degree of identity information is remarkably improved by adopting multi-data-source dynamic combination and ciphertext verification, hierarchical dynamic authorization is achieved through joint limitation of the period, the number of times and the limit, and the authentication efficiency is improved. The equipment environment and activation behavior are traced back by the whole link, the parameter state and affiliation are verified item by item after the authorization certificate is decrypted, and abnormal operations such as equipment illegal activation, authority border crossing and certificate false use are effectively prevented and controlled.

The invention discloses a virtual machine network connectivity test method and device, a medium and a product, relates to the technical field of cloud computing, and is applied to a detection service, the detection service is configured with a single preset detection network card, the preset detection network card is connected with a plurality of l2gateway ports, each l2gateway port corresponds to a virtual router, the IP address and the MAC address of each l2gateway port are the same, and the IP address and the MAC address of each virtual router are the same. Comprising the following steps: determining a target network label corresponding to a to-be-tested target virtual machine from a preset mapping relation table; packaging based on the target network label to obtain a detection message, and sending the detection message to a target l2gateway port matched with the label by using a preset detection network card; and determining a target virtual router matched with the target l2gateway port, so that the target l2gateway port forwards the detection message to a target virtual machine in the target virtual router to perform a network connectivity test.

The invention provides a ground satellite signal distributed cooperative processing method and system, and relates to the technical field of communication, and the method comprises the steps: extracting a user MAC address hash value, an emergency priority code and a spectrum occupancy matrix from a synchronous network, and generating a triple feature vector; transmitting the triple feature vectors through a double-layer Mesh network, selecting two reference target points with fixed geographic coordinates on the ground of the disaster area, obtaining three-dimensional coordinates of the reference target points, and constructing a space reference straight line; according to the real-time position data of each node, calculating a vertical projection distance from each node to the space reference straight line, and generating a node offset parameter; and dynamically generating a refraction correction coefficient of the signal propagation path based on a comparison result of the node offset parameter and a preset threshold value, and when the offset exceeds the threshold value, increasing a correction weight by adopting a piecewise linear interpolation method. According to the invention, high-reliability and low-delay emergency communication coverage can be realized.

Systems and methods for WLAN multi-link TDLS key derivation. An aspect of the disclosure provides a method for WLAN multi-link communication. Such a method includes sending, by a first station to a second station, a discovery request comprising a link identifier indicating a non-access point (AP) multi-link device (MLD), wherein the first station and the second station are associated with an AP MLD. Such a method further includes receiving, by the first station from the second station, a discovery response. In some embodiments, the method further includes receiving, by the first station from an AP affiliated with the AP MLD, a message indicating a MAC address of the second station. In some embodiments, the discovery request is sent via an AP affiliated with the AP MLD and a non-AP station affiliated with the second station.

This disclosure provides systems, methods, and apparatuses for wireless communication performed by a wireless communication device. An example wireless communication device includes an access point (AP) multi-link device (MLD). The AP MLD transmits a beacon frame to a wireless station (STA) MLD, the beacon frame including a plurality of AP medium access control (MAC) addresses of respective APs belonging to the AP MLD. The AP MLD receives an association request from the STA MLD, the association request including a plurality of STA MAC addresses of respective STAs belonging to the STA MLD. The AP MLD generates, during a handshake operation with the STA MLD, one or more encryption keys configured to encrypt communications between the AP MLD and the STA MLD. The AP MLD verifies the plurality of STA MAC addresses based at least in part on the one or more encryption keys.

The invention discloses an IPv6 stateless address dynamic planning method and system based on an elastic prefix, particularly relates to the field of network communication, is used for solving the problems of prefix rigidity and service semantic deficiency in IPv6 stateless address configuration of a railway network, and is implemented by extracting basic prefix information and compressing a service level identifier to generate an elastic sub-prefix bit string. The prefix is ensured to be flexibly embedded into multi-level semantics; fusing the MAC address of the host to construct a temporary interface ID, and enabling the address to have deep association between equipment and service; splicing candidate addresses and broadcasting verification information to collect conflict feedback to realize real-time conflict detection; based on feedback calculation correlation strength and a variation rate index, driving a bit flipping optimization prefix and an interface ID through a support vector machine decision, and forming an iterative adjustment closed loop; and finally, repeatedly verifying and confirming a final address and feeding back the final address to the semantic pool, or rolling back and expanding the prefix so as to solve stubborn conflicts, thereby overcoming the prefix rigidity and semantic deficiency of the traditional mechanism.

The invention discloses a cryptographic algorithm and protocol test system, the system is configured into two deployment modes: a transparent mode and a man-in-the-middle mode, the transparent mode can hide an IP or MAC address of a device, and certificate and algorithm information in a cryptographic protocol is identified and analyzed through a passive traffic analysis mode; the man-in-the-middle mode provides a dynamic packet changing function, realizes a dynamic interaction function with a server in an agent mode, can be used for application scenarios such as identity authentication, data encryption and decryption, protocol vulnerability analysis and performance test, can effectively improve the evaluation integrity and accuracy of a cryptographic algorithm and a cryptographic protocol, forms a complete and accurate test evaluation evidence chain, and improves the evaluation efficiency of the cryptographic algorithm and the cryptographic protocol. And the detection evaluation result is effectively supported. The system can be accessed to a production network to capture, identify and analyze network traffic, so that an international / national cryptographic algorithm and protocol security analysis function is realized, and verification and analysis on compliance, correctness, effectiveness and the like of password application in an important network and information system can be realized.

The invention discloses a reliable recognition method and system for door lock cooperation, and the method comprises the steps: building a binding relation between a mobile phone MAC address and a face feature vector according to a door opening event of the first face recognition of a resident, and constructing a directional multicast network based on the MAC address; according to the movement of the resident on the home returning path, a recognition request is sent to a directional multicast network through a door lock by collecting an MAC list and capturing a human face, and a resident identity recognition result is obtained; according to an identification request that a subsequent door lock encounters face shielding, a data complementation mechanism of a previous door lock is triggered, and service takeover is realized through an IGMP leaving message, so that a complete identity identification result is obtained; and according to the resident leaving trigger event, a leaving message is transmitted through a directional multicast network, the identity of a leaving person is confirmed through a passing door lock, and an in-home duration statistical result is obtained. According to the embodiment of the invention, the identity recognition is high in reliability, the single-point fault can be complemented, and the value-added service is precise.

A system comprises an EV with an infotainment unit, a driver App, an electric mobility service provider (eMSP) cloud and a user charging profile database to identify a Bluetooth® and time / location-based driver charging profile for its automatic selection in a charging session. The driver App is configured to communicate with the infotainment unit via a Bluetooth® interface such that a Bluetooth® MAC address being assigned to each device connected to a network is used to identify a vehicle ID and a mobile device location is used as a proxy for a vehicle location. The eMSP cloud is configured to receive the vehicle ID and the vehicle location. The user charging profile database including user charging profiles. The driver App includes a Bluetooth® plus time-based profile automatic selector for a charging session to automatically select a proper user charging profile based on the MAC address plus a day / time / location-based pre-configuration.

The invention discloses a low-delay and high-reliability wireless communication method and system, a medium and a product, and relates to the field of industrial information and data processing.The method comprises the steps that when an industrial control data packet with a priority processing identifier is received, MAC address table look-up operation is executed on the industrial control data packet, and a priority data packet containing a target address identifier is generated; constructing a data transmission path forwarding by bypassing the network bridge according to the target address identifier of the priority data packet; transmitting the priority data packet to a Wi-Fi driving layer through the data transmission path, so as to write the priority data packet to a hardware sending queue, and generating a sending data packet containing a time sequence identifier; determining a periodic transmission time window synchronized with the industrial control period according to the time sequence identifier of the sent data packet; and detecting a channel state index in the transmission time window, generating a retransmission control parameter according to the channel state index, and executing a data packet transmission operation according to the retransmission control parameter. According to the invention, the processing time delay of wireless communication can be reduced.

This invention provides a method of operating a wireless local area network, the wireless local area network including a user device, a wireless access point and a wireless repeater, wherein the wireless repeater is configured to virtualise a Media Access Control, MAC, address of the user device when the user device is connected to the wireless repeater by changing the Organisationally Unique Identifier, OUI, of the MAC address, the method comprising the steps of: obtaining data including a plurality of records, wherein each record of the plurality of records relates to the user device and includes a MAC address and a device label of the user device, wherein at least one record of the plurality of records includes a MAC address that has been virtualised by the wireless repeater; processing each record of the plurality of records by: determining that the MAC address of the processed record is a local MAC address, and, if so, identifying another record of the plurality of records that is uniquely associated with the user device based on the MAC address of the processed record by determining a Network Interface Controller, NIC, value of the MAC address of the processed record, determining that the determined NIC value is uniquely associated with a device label in the plurality of records, and identifying another record of the plurality of records having the associated device label, and assigning a unique identifier to the processed record based on the MAC address of the identified other record of the plurality of records; analysing the plurality of records having the unique device identifier; and causing a reconfiguration in the wireless local area network based on the analysis.

The invention relates to the technical field of BMC security, and provides a security acquisition method and device of BMC information, equipment and a medium, and the method comprises the steps: generating a one-time public key and a one-time private key for a single communication session according to a self MAC address and real-time time; performing hash operation on the one-time public key to obtain a one-time public key hash value; sending the one-time public key hash value to a key management server, so that the key management server signs the one-time public key hash value by using a preset private key, and receiving a returned signature result; packaging the one-time public key and the signature result into a request message, and broadcasting the request message to a local area network to enable the BMC to generate and return an encrypted response message after signature verification; and monitoring and receiving an encrypted response message returned by the BMC, decrypting the encrypted response message by using the one-time private key, and extracting and displaying BMC information. According to the technical scheme, confidentiality, safety and integrity of the response information in the transmission process are guaranteed.

A multi-connection reestablishment method, for use in a first device, and comprising: sending a first message frame, the first message frame comprising: a connection identifier of multiple connections of a first device and a second device, and media access control MAC addresses of the first device, one connection being associated with one MAC address of the first device.

This disclosure relates to creating a connection between two devices without using a UUID and / or MAC address. For example, a first device can store a private key for creating a secure connection. A second device may request that a user log into an account associated with the first device (e.g., a customer account, a financial account, an employee account, and / or the like) in order to initiate the wireless connection. The second device user can enter login credentials via the second device, which may then be transmitted to a backend system. The backend system can receive and validate the login credentials and, in response, transmit a public key to the second device. The second device can use the public key to perform a public / private key handshake in order to validate the first device.

The invention discloses a device control method and system, and the method comprises the steps: transmitting a pairing broadcast packet to a terminal device, enabling the terminal device to carry out the pairing according to the pairing broadcast packet, and enabling the pairing broadcast packet to comprise an access control address, a message sequence field, a target secret key, and a pairing packet check code; generating a control data packet according to the target control information corresponding to the controlled terminal, the data survival time, the access control address, the message sequence field and the control packet check code; and sending the control data packet to the controlled terminal, and performing one-way control on the controlled terminal through the control data packet. Through the above mode, the complex handshake process of traditional Bluetooth networking is replaced by introducing the pairing broadcast packet of the MAC address, the SEQ, the target secret key and the check code, the network distribution process is significantly simplified, the network distribution time is shortened, the network distribution efficiency is improved, a one-way control mechanism is adopted, a two-way confirmation link is omitted, and the network distribution efficiency is improved. The communication delay is reduced; and the control efficiency is improved.

Some embodiments provide a method of forwarding data messages between EPUs that are connected through a network and that perform computations to collectively execute a distributed application. The method generates, for each computation of each source EPU, a data message flow having one or more data messages that store a result of the computation. The generating includes specifying, for each data message, an Ethernet header having a field that identifies the data message as an Ethernet frame and a MAC field that instead of a MAC address stores a tag for forwarding the data message to a destination in the network. The method uses, at each forwarding element that forwards each data message, the tag stored in the MAC field of the data message's header to identify an egress port of the forwarding element to forward the data message along a path through the network to the data message's destination.

The invention provides a multi-uplink backup method, device and equipment based on an MLAG environment, and belongs to the technical field of communication. The method comprises the following steps: configuring at least one physical link backup group on an MLAG master device and an MLAG backup device; wherein one physical link backup group comprises a plurality of uplink physical ports; and constructing a port priority sequence based on the equipment MAC address and the port ID in the physical link backup group, and determining a main port and one or more backup ports in the plurality of uplink physical ports according to the port priority sequence. When the main port breaks down, the main port is switched to be in a blocked state, the corresponding association table item is deleted, a new main port is selected from the remaining standby ports in the online state according to the port priority sequence, and fault information is synchronized to opposite end equipment; and when the fault port is recovered and the preset inversion mode is configured, re-determining the main port based on the port priority sequence.

A system and method are provided for generating a pairwise transient key security association (PTKSA) by: providing a first media access control (MAC) address that is shared by multiple access points (APs), the first MAC address corresponding to an infrastructure comprising the multiple APs, and each AP of the multiple APs having a respective AP MAC address; providing a second MAC address to a station (STA); and establishing a secure link between the STA and the infrastructure using the first MAC address and the second MAC address to derive a pairwise transit key (PTK) for the secure link, wherein the secure link is between the STA and the multiple APs.

The invention discloses a method for realizing cross-chip unified memory space access based on Ethernet, which comprises the following steps: an on-chip network of a source chip in an HBD domain receives a bus data request message of cross-chip access in the HBD domain sent by a source computing unit of the chip, a corresponding C2C subsystem sending the bus data request message to a source chip obtains a chip ID of a target chip according to target address information carried in the bus data request message, obtains a target MAC address according to the chip ID of the target chip, converts the bus data request message into an Ethernet message load, carries out Ethernet head packaging, and sends the Ethernet message load to the source chip; the obtained Ethernet data message is sent to an exchange chip through a C2C subsystem physical layer; and the C2C subsystem of the target chip receives the Ethernet data message from the exchange chip, judges that the target MAC is the own MAC address, strips the Ethernet head package, restores the Ethernet message load into a bus data request message, and sends the bus data request message to the target calculation unit of the chip through the on-chip network of the chip.

The embodiment of the invention provides a quick authentication method, device and equipment based on NFC (Near Field Communication) and BLE (Bluetooth Low Energy), a medium and a product. The method relates to the technical field of communication, and comprises the following steps: when it is detected that a terminal device realizes a touch operation with a target device through NFC, acquiring in-card data pre-stored by the target device; wherein the in-card data at least comprises a device ID and a Bluetooth mac address of the target device; acquiring a device key matched with the device ID from a storage module of the terminal device; encrypting an unlocking instruction by using the device key to obtain an encrypted unlocking instruction; the encrypted unlocking instruction is broadcasted through Bluetooth, so that the target device receiving the encrypted unlocking instruction decrypts the encrypted unlocking instruction to obtain the unlocking instruction, and the unlocking instruction is executed through the target device. According to the invention, the convenience of the NFC card key can be improved.

This disclosure provides systems, methods, and apparatuses for wireless communication performed by a wireless communication device. An example wireless communication device includes an access point (AP) multi-link device (MLD). The AP MLD transmits a beacon frame to a wireless station (STA) MLD, the beacon frame including a plurality of AP medium access control (MAC) addresses of respective APs belonging to the AP MLD. The AP MLD receives an association request from the STA MLD, the association request including a plurality of STA MAC addresses of respective STAs belonging to the STA MLD. The AP MLD generates, during a handshake operation with the STA MLD, one or more encryption keys configured to encrypt communications between the AP MLD and the STA MLD. The AP MLD verifies the plurality of STA MAC addresses based at least in part on the one or more encryption keys.

This invention provides a method of operating a wireless local area network, the wireless local area network including a user device, a wireless access point and a wireless repeater, wherein the wireless repeater is configured to virtualise a Media Access Control, MAC, address of the user device when the user device is connected to the wireless repeater, the method comprising the steps of: obtaining data including a first plurality of records, wherein each record of the first plurality of records relates to the user device and includes a MAC address and a signal strength value; obtaining data including a second plurality of records, wherein each record of the second plurality of records includes a Basic Service Set Identifier, BSSID, and a signal strength value; for each MAC address in the first plurality of records: identifying a record of the second plurality of records having a BSSID that sufficiently matches the MAC address by determining a similarity between an Organisationally Unique Identifier, OUI, of the BSSID and the OUI of the MAC address, determining that a difference between the signal strength value associated with the identified record of the second plurality of records and the signal strength value associated with the MAC address of the first plurality of records is within a threshold, assigning a first hop repeater identifier to each record of the first plurality of records having the MAC address based on the BSSID of the identified record of the second plurality of records; and causing a reconfiguration in the wireless local area network based on the first hop repeater identifier.

A method for configuring a communication network including a gateway adapted for connecting the communication network to a wide area communication network and connected to a plurality of nodes implementing an access point functionality is described. The nodes are coordinated in a centralised manner by a current master node selected from the plurality of nodes. The current master node obtains a virtual MAC address and an IP address associated with the virtual MAC address, the IP address being reserved for configuring network services. It next configures a virtual network interface from the IP address associated with the virtual MAC address.

The invention relates to a cockpit network route adjusting method, a cockpit network system, a vehicle and a storage medium, a cockpit network architecture comprises an Ethernet switch, a first controller and a second controller, the first controller and the second controller are connected with the Ethernet switch, and the method comprises the following steps: under the condition that the first controller is connected with a wireless network, the first controller is connected with the wireless network; setting a destination MAC address in the Ethernet switch as the MAC address of the first controller; and configuring a routing table of the first controller based on the first routing information, so that the second controller accesses the wireless network based on a routing service provided by the first controller. The method can solve the problem that the vehicle network is difficult to use.

An information processing apparatus includes: a first acquisition unit that acquires first identification information as a MAC address from a communication apparatus; a second acquisition unit that acquires, based on a fact that the acquired first identification information is a MAC address that is randomized in the communication apparatus by a predetermined function of randomizing a MAC address of the communication apparatus, second identification information as a predetermined kind of identification information different from a MAC address from the communication apparatus that has transmitted the first identification information to the information processing apparatus; and a first execution unit that executes, using the acquired second identification information, processing for communicating with the communication apparatus that has transmitted the first identification information to the information processing apparatus.

The invention relates to the technical field of anomaly detection, in particular to an anomaly detection method for plant station automation network data packets, which comprises the following steps of: extracting a source MAC address, a destination MAC address, a protocol type, a communication frequency and an average packet length of each data packet based on the plant station automation network data packets captured in real time; according to the method, the source MAC address, the destination MAC address, the protocol type, the communication frequency and the average packet length of a plant station automation network data packet are extracted in real time, a weighted directed communication map is established according to the relation between intelligent electronic equipment and a gateway, and further, a network steady-state behavior baseline is formed through quantification from the communication behavior characteristic value of a node, so that the network steady-state behavior is realized. And a sliding time window mechanism is adopted to continuously calculate a behavior deviation metric value, and a topology behavior fluctuation index is generated by comprehensively analyzing communication frequency change, protocol type change and centrality change of an SV message, so that the time and the position of network abnormity can be determined.

Provided in the present invention is a low-latency redundant communication protocol based on an improved PRP, which protocol is compatible with the PRP standard of IEC 62439-3-2016 and operates at a link layer. Two redundant ports are connected to an upper-layer protocol by means of a link redundancy entity, and are transparent to the upper-layer protocol; a network-end node has two or three redundant network ports, which are respectively connected to networks that are independent of each other and have the same topological structure, and the networks operate in parallel; and network ports belonging to PRP-supporting end nodes are configured with the same IP address and MAC address. The improvements in the present invention are as follows: a redundancy discarding algorithm is modified to a mode of directly uploading a first-arriving communication frame to an application layer; {source IP address, source MAC address and frame sequence number} is used as a determination condition for a redundant frame; by means of file pre-configuration, the IP address of a single-network-port node in a network is written into a configuration file in advance in a node; and statistics for the number of network port link up / down events, out-of-receive-window statistics, statistics for non-sequential frame sequence numbers, and statistics for the number of out-of-sync redundant frames are added.