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35 results about "Proxy ARP" patented technology
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Proxy ARP is a technique by which a proxy device on a given network answers the ARP queries for an IP address that is not on that network. The proxy is aware of the location of the traffic's destination, and offers its own MAC address as the (ostensibly final) destination. The traffic directed to the proxy address is then typically routed by the proxy to the intended destination via another interface or via a tunnel.
Uniform power save method for 802.11e stations
ActiveUS20050018624A1Delay minimizationFast sampling rateEnergy efficient ICTPower managementAccess methodClient-side
A power-save QSTA notifies an Access Point (AP) that its operating in a automatic power-save delivery (APSD) mode and negotiates a periodic wakeup schedule and a scheduled startup time with the AP. Wakeup times are synchronized with the 802.11 Timer Synchronization Function (TSF). The AP automatically sends frames to the QSTA when it determines the QSTA is in an awake state, otherwise downlink frames are buffered. The AP uses a combination poll+EDCF access method wherein at the start of each wakeup period the AP sends a poll to the QSTA, the poll having a flag that indicates to the QSTA if the AP has a downlink fame buffered for the QSTA. In addition, a Proxy ARP Server in an AP maintains IP / MAC bindings for associated clients so that when the AP receives a proxy ARP request for a client, the AP may respond for the client.
Owner:CISCO TECH INC
Cooperative proxy auto-discovery and connection interception
ActiveUS7318100B2Convenient online transactionsReduce bandwidth usageMultiple digital computer combinationsElectric digital data processingClient-sideServer-side
In a network supporting transactions between clients and servers and proxies that are interposable in a network path between at least one client and at least one server, wherein a pair of proxies can modify a packet stream between a client and a server such that packet data from the client to the server is transformed at a client-side proxy of the proxy pair and untransformed at a server-side proxy of proxy pair and such that packet data from the server to the client is transformed at the server-side proxy and untransformed at the client-side proxy, a method and apparatus for a discovering proxy to transparently discover its position in a proxy pair by using proxy signals to indicate to other proxies that could pair with the discovering proxy. A discovering proxy might determine that it is a client-side proxy by receipt of a packet from client without a proxy signal. A discovering proxy might determine that it is a server-side proxy by receipt of a packet from server without a return proxy signal. Once a proxy pair is discovered, that proxy pair might transform traffic from the server to the client or vice versa, transforming the traffic at one proxy of the proxy pair and untransforming the traffic at the other proxy of the pair.
Owner:RIVERBED TECH LLC
Local IP access scheme
Local IP access is provided in a wireless network to facilitate access to one or more local services. In some implementations, different IP interfaces are used for accessing different services (e.g., local services and operator network services). A list that maps packet destinations to IP interfaces may be employed to determine which IP interface is to be used for sending a given packet. In some implementations an access point provides a proxy function (e.g., a proxy ARP function) for an access terminal. In some implementations an access point provides an agent function (e.g., a DHCP function) for an access terminal. NAT operations may be performed at an access point to enable the access terminal to access local services. In some aspects, an access point may determine whether to send a packet from an access terminal via a protocol tunnel based on the destination of the packet.
Owner:QUALCOMM INC
Method and system for improving high speed internetwork data transfers
InactiveUS6631137B1Improving high speed traffic operationHigh speed data transmissionNetworks interconnectionSecuring communicationVirtual LANIp address
A method for creating a single virtual LAN including a source (S) attached to a first Token ring LAN (N1), a target (T) within a subnet attached to a different Token ring LAN (N2), and an interconnecting router (R). The source (S) encapsulates the first packet with a Token ring header including the router MAC address (RMAC), SMAC as source MAC address as layer 2 information, and IP address of T (TIP) as layer 3 data and sends this packet over N1 toward the router. When receiving the first packet, R reads its IP table for best match with TIP address to identify the subnet including T. The net handler runs an ARP protocol to identify TMAC address, substitutes the MAC header with said TMAC address into said first packet destination MAC address field and forwards said first packet over N2. R then sends a conventional ICMP message over N1 limited broadcast and reconfigures itself in proxy ARP for the defined subnet. For the second packet, S runs an ARP and R answers with RMAC address and the RIF data to be used for next packets.
Owner:CISCO TECH INC
Cooperative proxy auto-discovery and connection interception
InactiveUS20080320154A1Transparently interceptOptimize networkServices signallingMultiple digital computer combinationsClient-sideServer-side
In a network supporting transactions between clients and servers and proxies that are interposable in a network path between at least one client and at least one server, wherein a pair of proxies can modify a packet stream between a client and a server such that packet data from the client to the server is transformed at a client-side proxy of the proxy pair and untransformed at a server-side proxy of proxy pair and such that packet data from the server to the client is transformed at the server-side proxy and untransformed at the client-side proxy, a method and apparatus for a discovering proxy to transparently discover its position in a proxy pair by using proxy signals to indicate to other proxies that could pair with the discovering proxy. A discovering proxy might determine that it is a client-side proxy by receipt of a packet from client without a proxy signal. A discovering proxy might determine that it is a server-side proxy by receipt of a packet from server without a return proxy signal. Once a proxy pair is discovered, that proxy pair might transform traffic from the server to the client or vice versa, transforming the traffic at one proxy of the proxy pair and untransforming the traffic at the other proxy of the pair.
Owner:RIVERBED TECH INC
Uniform power save method for wireless stations
A Proxy ARP Server in an AP maintains IP / MAC bindings for associated clients. In an example embodiment, when the AP receives a proxy ARP request for a client, the AP may respond for the client. In another example embodiment, when the AP receives a proxy ARP request for the client, the AP buffers the request until the client is in an awake state. Optionally, the AP may convert the broadcast destination MAC address in the ARP request to a unicast address that corresponds to the target IP address.
Owner:CISCO TECH INC
VLAN data switching method using ARP packet
ActiveUS7088689B2Procedure can be minimizedError preventionFrequency-division multiplex detailsTraffic capacityVirtual LAN
A virtual local area network(VLAN) data switching method uses an address resolution protocol(ARP) packet in VLAN constructed with one internet protocol(IP) subnet. This is achieved by making a source host broadcast an ARP request packet, making a Proxy ARP server prepare to transmit a virtual ARP request packet wherein the Proxy ARP server receives the ARP request packet, and making a destination host transmit an ARP response packet in direct to the source host through a switching unit wherein the destination host receives the virtual ARP request packet. Data transfer delay time for the data exchanged between different VLANs as well as the router load occurring in handling the traffic between VLANs are reduced, so that data handling performance for high-capacity multimedia data transferred on VLANs is improved.
Owner:ERICSSON LG ENTERPRISE
Cooperative proxy auto-discovery and connection interception
InactiveUS20090157888A1Transparently interceptOptimize networkServices signallingMultiple digital computer combinationsClient-sideProxy ARP
Owner:RIVERBED TECH LLC
Access point device and a communications system for effectively using a proxy ARP function
ActiveUS20070097919A1Easy to useNetwork traffic/resource managementNetwork topologiesCommunications systemIp address
In an access point device, a controller controls a wired interface communicating on wire with a network switcher accommodating access point devices and a wireless interface communicating wirelessly with a wireless terminal device located in its service area. Services are handed over between the access point devices responsively to the wireless terminal device moving. Access point devices before and after the handover of services are defined as a handover source and a hand over destination, respectively. A hand over at the hand over destination causes a data frame to be generated containing the MAC address of the wireless terminal device as a source address, a broadcast address as a destination address and address information of its own device. A table holds terminal connection information defining the relationship of the MAC address to the IP address of the wireless terminal device. The data frame is transmitted to the network switcher through the wired interface.
Owner:OKI ELECTRIC IND CO LTD
PCI-E bus distributed system intra-board and inter-board data communication method
InactiveCN101043510AImprove communication skillsConsume resourcesStore-and-forward switching systemsSequence designPCI Express
The communication method based on PCI-E bus is disclosed to data communication in panel and among panels distributed system, and applies single-ring sequence design with PCI Express bus share memory to multiplex three of that PCI Express drives the transmitting, the receiving buffer, and the virtual network upper protocol stack buffer. This invention also applies agent ARP technology to make the external host to feel all units in panel as connecting in LAN. This invention overcomes defects in prior art, and fit to PCI-E bus based distributed system.
Owner:ZTE CORP
Information processing apparatus capable of connecting to network in power saving state, method of controlling the same, and storage medium
InactiveUS20140298054A1Long period of timeFurther power savingEnergy efficient ICTVolume/mass flow measurementInformation processingWireless lan
An information processing apparatus capable of changing packet patterns for determining, based on a condition of proxy ARP compatibility of a connected wireless LAN access point, communication requests to which the apparatus can respond in a power saving state, and thereby maintaining the power saving state for a longer time period. A RAM of an MFP operable in the normal state and the power saving state stores packet patterns which enable the MFP to respond to packets received in the power saving state while maintaining the power saving state. The MFP acquires proxy ARP support information from a wireless LAN access point that relays communication between the MFP and an external apparatus. The MFP determines whether or not the AP can respond to a received communication request on its behalf, and changes the packet patterns based on the determination result.
Owner:CANON KK
Systems and methods that provide enhanced state machine power management
The present invention manages power for state machines. The system and methods selectively apply, remove and / or reduce power to portions of the state machine, based on power management schemes, intelligence, a user, an application, etc . Such novel systems and methods provide for sustaining a CPU and / or a network radio in an "on" state, while lowering and / or removing power to other portions of the state machine to reduce power consumption. The foregoing enables a wireless mobile terminal to maintain network connectivity and be able to wake to service events such as a link status change, a network keep alive, a proxy-ARP packets, a re-authentication packets, etc . Such power management can execute in the background and return the wireless mobile terminal to a "run" state via invocation from a wake source such as a power control, a key, a trigger, a touch screen, a wake up timer, a wake-on-LAN, etc .
Owner:SYMBOL TECH INC
Network crawling method, terminal and storage medium
ActiveCN108551452ASolve the problem of IP restrictionAvoid wastingData switching networksSpecial data processing applicationsTime segmentComputer terminal
The invention discloses a network crawling method, and the method comprises the following steps: storing a plurality of proxy IPs acquired at intervals of a preset period in a preset proxy IP pool; verifying each proxy IP in the proxy IP pool one by one, and judging validity of the acquired proxy IPs; recording the proxy IPs, determined as valid, in a white list in the proxy IP pool, and recordingthe proxy IPs, determined as invalid, in a black list in the proxy IP pool; when that the current proxy IP satisfies a preset proxy substitution condition is detected, selecting one proxy IP from thewhite list in the proxy IP pool; and taking the selected proxy IP as a new proxy IP and performing data crawling. The invention also provides a terminal and a storage medium. With the method, the terminal and the storage medium provided by the invention, a problem of IP limitation in a process of quickly crawling data in quantity many times for a long time of the same proxy IP can be solved effectively.
Owner:PING AN TECH (SHENZHEN) CO LTD
Network device with proxy address resolution protocol
Owner:IYUKO SERVICES
Method and system for realizing proxy address resolution protocol (ARP) based on gratuitous ARP
The invention discloses a method for realizing a proxy address resolution protocol (ARP) based on a gratuitous ARP. The method comprises the following steps that: A, an access switchboard creates and stores host Internet protocol (IP) address information by monitoring the gratuitous ARP process of an IP host, and transmits the host IP address information to a convergence switchboard; B, the convergence switchboard receives the host IP address information, and stores the host IP address information to a host IP address information table; and C, after receiving an ARP request message transmitted by the IP host, the convergence switchboard judges whether a target IP address in the ARP request message is in the host IP address information table, if the target IP address is in the host IP address information table, the convergence switchboard transmits an ARP response message to the IP host, if the target IP address is not in the host IP address information table, the convergence switchboard discards the ARP request message. By the method, accessibility detection of a target terminal in the proxy ARP is realized.
Owner:北京神州数码云科信息技术有限公司
Method for configuring route of mobile terminal in PMIPv4
InactiveCN101510900AReduce complexityReduce switching delayWireless network protocolsTransmissionTelecommunicationsNetwork layout
The invention proposes a route collocation method applied to a mobile termination of PMIPv4, and proposes a scheme for the mobile termination to realize an absolute no participation in acting for switching mobile IP process through an adoption of agent ARP at the network end. Not needing to regulate network layout of a current wireless local area network and not needing any alteration or allocation on the current mobile termination, the scheme only needs to have a proper alteration of an agent mobile management end PMA of the network end to lower complexity and switching time lapse of the mobile termination.
Owner:BEIJING JIAOTONG UNIV
SDN layer-2 forwarding method and system
ActiveCN107181681AAvoid skyrocketingSmall scaleData switching networksSecuring communicationAddress resolutionMedia access control
The invention discloses an SDN layer-2 forwarding method and system. The method comprises that when performing address resolution protocol (APR) proxy reply on a source host, a controller sets a destination host media access control (MAC) address in an ARP reply sent to the source host as a proxy MAC address generated in advance; the source host and the destination host encapsulate an interaction data packet and send the interaction data packet to a switch by using the proxy MAC address as the destination host MAC address; and the switch forwards, between the source host and the destination host according to a forwarding table sent by the controller, the interaction data packet in which the proxy MAC address is encapsulated. The forwarding table is used for indicating a forwarding path for an Internal control message protocol (ICMP) layer-3 data packet in which the proxy MAC address is encapsulated. According to technical schemes of the invention, the scale of the forwarding table searched by the switch can be reduced, the performance of a table searching and forwarding message of the switch can be improved, and the difficulty and workload of maintaining the forwarding table are further reduced.
Owner:ZTE CORP
Method and system for realizing proxy ARP (Address Resolution Protocol) function based on DHCP (Dynamic Host Configuration Protocol) interception
ActiveCN102546307AImprove accessibilityEnsure interoperabilityData switching networksIp addressClient-side
The invention discloses a method and a system for realizing a proxy ARP (Address Resolution Protocol) function based on DHCP (Dynamic Host Configuration Protocol) interception. The method comprises the following steps that: a DHCP interception function is started up in an access layer switch, the proxy ARP function is started up in an aggregation layer switch, and the IP (Internet Protocol) address of the aggregation layer switch is configured in the access layer switch; the access layer switch intercepts a DHCP requesting process of a client-side, creates and stores binding information, and uploads the binding information to the aggregation layer switch; the aggregation layer switch stores the binding information into a binding information table; and the client-side sends an ARP requesting message to the aggregation layer switch, and the aggregation layer switch queries the binding information table, and sends an ARP response message to the client-side when the binding information table contains the destination IP address of the ARP requesting message. With the adoption of the technical scheme provided by the invention, the accessibility in the detection of the destination IP address by using proxy ARP equipment can be achieved, so that the communication between a requesting terminal and a destination terminal is ensured.
Owner:北京神州数码云科信息技术有限公司
ARP (Address Resolution Protocol) agent method based on different VLANs ((Virtual Local Area Networks)
InactiveCN105657076AImprove operational efficiencyNetworks interconnectionMedia access controlBroadcasting
The invention discloses an ARP (Address Resolution Protocol) agent method based on different VLANs ((Virtual Local Area Networks). The ARP agent method is characterized by comprising the following steps that: a HostA (VLAN10) hopes to be communicated with another host HostC (VLAN40), and the HostA directly sends an ARP request; after receiving the ARP request, an apparatus applying an agent ARP searches a local ARP cache list, and if corresponding table items (comprising an IP (Internet Protocol) and MAC (Media Access Control) of the HostC) are found, the agent ARP immediately responds related information of going to the target HostC to the HostA; when a frame of a source address to a certain network segment is received, network segments in the agent ARP cache list are searched, and then a data packet is broadcast in a corresponding VLAN area (reduction of whole network efficiency, which is caused by whole network broadcasting, is avoided, and a request response rate is improved); and after receiving a broadcast, the HostC immediately responds to an ARP response and notifies an MAC address of the HostC, and after receiving the ARP request, the agent ARP apparatus notifies the MAC of E0 / 0 to the HostA. According to the ARP agent method based on different VLANs, which is provided by the invention, whole network operation efficiency is promoted.
Owner:江苏华御威盾网络科技有限公司
Data distribution method, device and system
The invention discloses a data distribution method, device and system. The method comprises the following steps that: network equipment broadcasts an ARP request message in a local area network in order to find required target equipment; wireless transmission equipment makes a response to the ARP request message in a proxy ARP way, and transmits data sources transmitted by the network equipment to wireless receiving equipment on the basis of supported channels; and after reception of the data sources, the wireless receiving equipment broadcasts the ARP request message, finds target equipment specified by the data sources, and transmits the data sources to the target equipment. According to the method, IP data of the data sources are distributed to channels with different frequencies to be transmitted according to a destination IP of the IP data through a proxy ARP technology, so that the problem of insufficient frequency resources in a single channel is solved.
Owner:QINGDAO HAIER INTELLIGENT HOME TECH CO LTD
A method to implement arp proxy
The invention discloses a method for realizing ARP proxy, which belongs to the technical field of network address resolution; the method for realizing ARP proxy specifically includes: step 1, a network device sends a first ARP request information to a master control device through a corresponding slave control device; The first ARP request information includes the IP address information of a preset network device as the target IP address information; step 2, the master control device returns the corresponding first ARP request information to the network device sending the first ARP request information according to a preset ARP cache table. A MAC address information of an ARP request message. The beneficial effect of the above-mentioned technical scheme is: adopt this technical scheme, can make the ARP proxy between different sub-vlans under the same vlan aggregation be concentrated on the main control board for unified processing, and solve the problems caused by the synchronization difference of the ARP cache table between each service board. caused problems.
Owner:上海寰创通信科技股份有限公司
A method and system for realizing proxy ARP based on free ARP
The invention discloses a method for realizing proxy ARP based on gratuitous ARP, which includes the following steps: A. The access switch monitors the gratuitous ARP process of the IP host, creates and saves the host IP address information, and sends the host IP address information to the aggregation switch; B, the aggregation switch receives the host IP address information, and saves it in the host IP address information table; C, the aggregation switch detects the target in the message after receiving the ARP request message sent by the IP host Whether the IP address is in the host IP address information table, if yes, send an ARP response message to the IP host, if not, discard the ARP request message. The invention realizes the reachability detection of the target terminal in the proxy ARP.
Owner:北京神州数码云科信息技术有限公司
Information processing apparatus capable of connecting to network in power saving state, method of controlling the same, and storage medium
InactiveUS9625975B2Further power savingSolve the large power consumptionEnergy efficient ICTPower supply for data processingInformation processingTime segment
An information processing apparatus capable of changing packet patterns for determining, based on a condition of proxy ARP compatibility of a connected wireless LAN access point, communication requests to which the apparatus can respond in a power saving state, and thereby maintaining the power saving state for a longer time period. A RAM of an MFP operable in the normal state and the power saving state stores packet patterns which enable the MFP to respond to packets received in the power saving state while maintaining the power saving state. The MFP acquires proxy ARP support information from a wireless LAN access point that relays communication between the MFP and an external apparatus. The MFP determines whether or not the AP can respond to a received communication request on its behalf, and changes the packet patterns based on the determination result.
Owner:CANON KK
Method for improving handshaking smoothness in mobile communication
InactiveCN1428995ASmooth handoverAutomatic exchangesWireless communicationProxy ARPReal-time computing
Owner:INSTITUTE FOR INFORMATION INDUSTRY
System based on two layer VPN foreign medium communication and method thereof
InactiveCN100550814CAvoid the phenomenon of learning useless MAC addressesImprove maintainabilityNetworks interconnectionTransport layerInterconnection
The present invention provides a system and method based on Layer 2 VPN heterogeneous media intercommunication, the core of which is: the local PE is connected to at least one local CE through a Layer 2 switching device, the ARP agent in the local PE terminates the ARP request of the remote CE, Do not send an ARP response to the ARP request of the local CE mutual visit, and perform ARP learning according to the ARP request of the local CE mutual visit; the packet forwarding module in the local PE encapsulates the IP packet in the local CE packet into an MPLS packet and forwards it to the The remote PE encapsulates the IP packet in the remote CE packet transmitted by the remote PE into a Layer 2 Ethernet packet, and transmits the Layer 2 Ethernet packet to the local CE according to the ARP information learned by the ARP agent . The present invention provides an economical and practical layer-2 VPN solution for small and medium-sized enterprises to realize remote interconnection of enterprise networks, especially point-to-multipoint heterogeneous media intercommunication similar to hub-spoke, and realizes point-to-multipoint layer-2 broadcasting The purpose of Layer 2 VPN heterogeneous media intercommunication in large-scale networks.
Owner:HUAWEI TECH CO LTD
Method for improving handshaking smoothness in mobile communication
InactiveCN1180653CEasy and smooth switchingRadio/inductive link selection arrangementsAutomatic exchangesComputer scienceProxy ARP
Owner:INSTITUTE FOR INFORMATION INDUSTRY
A method for realizing a non-proxy IP call rejection function based on an SIP protocol
InactiveCN109743470AAvoid inconvenienceInterconnection arrangementsTransmissionDomain nameIp address
The invention also relates to a method for realizing the non-proxy IP call refusal function based on the SIP protocol, and the method specifically comprises the following steps: (1) the home gateway receives an INVITE call request, judges whether a currently configured server is a domain name or not, and continues the step (2) if the currently configured server is the domain name; Otherwise, continuing the step (3); (2) DNS analysis is carried out on the server domain name, and all analyzed IP addresses are stored; (3) judging whether the IP address obtained by DNS analysis is consistent withthe source IP address of the INVITE call request, and if so, normally accessing the call request; And otherwise, refusing the call request. The method for realizing the non-proxy IP call rejection function based on the SIP protocol can judge Whether the source IP is consistent with the currently configured server or not from the source, it is guaranteed that only the INVITE call request from the self-registered server can be accessed, and therefore inconvenience brought to clients by harassment calls is effectively avoided.
Owner:SHANGHAI GONGJIN COMM TECH
Method for, realizing self adaption extension domain management entity mechanism Flexible IP network technology system
InactiveCN100512172CNo effect on communication efficiencyNo impact on data processing efficiencyData switching by path configurationRaw socketAdaptive management
A method for realizing an adaptive extended domain management entity mechanism in a flexible IP network technical system, the method is: when a network access point of a mobile node switches to another link, the address of the extended domain management entity is obtained through proxy discovery, Determine whether it and the extended domain management entity belong to the same network segment. If yes, construct the registration request data packet according to the traditional mobile IP principle, and send the extended domain management entity to forward the registration request; if not, obtain the relevant information, construct the original socket, and Send a registration request to the extended domain management entity; through registration, the mobile node informs the basic domain management entity of its care-of address; establishes a bidirectional tunnel between the extended domain management entity and the basic domain management; the extended domain management entity generates a proxy ARP of the mobile node Table entry to enable proxy ARP mechanism for successfully registered mobile nodes. The invention solves the technical problem that the foreign agent entity of the traditional mobile IP performs the full-agent function, which reduces the communication efficiency and occupies the system resources of the foreign agent entity.
Owner:CHINA IWNCOMM
A method for automatically establishing 4over6 tunnels based on arp proxy
ActiveCN103227787BAchieve acquisitionFunction increaseData switching networksAccess networkComputer science
A method for automatically establishing a 4over6 tunnel based on an ARP proxy, which combines the LCRA function with the CPE device, obtains the address information of the real gateway and binds it with the MAC address of the CPE, so that the CPE device enables the proxy ARP function. During the transitional period, the IPv6 single-stack network is used as the access network to obtain public IPv4 addresses across the IPv6 network without changing the existing IPv4 terminal hosts, and a 4over6 tunnel is established with the CPE router as the tunnel initiation point to access the IPv4Internet, realizing IPv6 Mutual visits between IPv4 hosts in a single-stack access network.
Owner:TSINGHUA UNIV
A sdn broadcast processing method based on arp event trigger agent
The invention proposes an SDN broadcast processing method based on ARP event triggering agent. In this method, the controller is used as an agent to process ARP broadcast packets, and the storage mode of host state information, host information initialization, and host information real-time update mechanism are proposed to ensure that once a host is successfully connected to the network, it will be perceived, and any behavior of the host will cause its state Changes in information can update the host status information in time to ensure the integrity and real-time performance of host information. As a real-time ARP broadcast packet processing strategy, the present invention is applicable to other network models with centralized control characteristics, and the method has the advantages of reducing data plane traffic, reducing control plane traffic, reducing controller load, reducing host end load, and the like.
Owner:BEIJING UNIV OF POSTS & TELECOMM
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