WO2009146615A1 - Procédé et système de traitement et processeur pour service de conversion d'adresse de réseau - Google Patents

Procédé et système de traitement et processeur pour service de conversion d'adresse de réseau Download PDF

Info

Publication number
WO2009146615A1
WO2009146615A1 PCT/CN2009/070703 CN2009070703W WO2009146615A1 WO 2009146615 A1 WO2009146615 A1 WO 2009146615A1 CN 2009070703 W CN2009070703 W CN 2009070703W WO 2009146615 A1 WO2009146615 A1 WO 2009146615A1
Authority
WO
WIPO (PCT)
Prior art keywords
nat service
packet
nat
processor
processing
Prior art date
Application number
PCT/CN2009/070703
Other languages
English (en)
Chinese (zh)
Inventor
张日华
朱志强
侯贵斌
孟祥东
毛世峰
何荣
谢文辉
陈玉柱
苏然
徐勇
程志军
Original Assignee
成都市华为赛门铁克科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 成都市华为赛门铁克科技有限公司 filed Critical 成都市华为赛门铁克科技有限公司
Priority to US12/469,359 priority Critical patent/US8149840B2/en
Publication of WO2009146615A1 publication Critical patent/WO2009146615A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/09—Mapping addresses
    • H04L61/25—Mapping addresses of the same type

Definitions

  • the embodiments of the present invention relate to a computer network technology, and in particular, to a method, system, and processor for processing a network address translation service.
  • NAT Network Address Translation
  • IP address IP address
  • Private network addresses include:
  • Public network addresses include: 0.0.0.0-126.255.255.255
  • each enterprise or organization can select an appropriate private network address according to the number of hosts.
  • the private network addresses used by different enterprises or organizations may be the same or different.
  • FIG. 1 is a schematic diagram of implementing NAT services in the prior art.
  • the network address used inside a LAN is 10.0.0.0 network segment, and the external public network address is 202.196.3.23.
  • the host with the address 10.1.1.48 in the LAN needs to access the server with the address 202.18.245.251 outside the LAN
  • the host with the network address 10.1.1.48 sends a packet.
  • the source port of the packet is 6084.
  • the port is 80.
  • the router translates the source address and the source port of the packet to 202.196.3.23:32814 through NAT technology, and the destination address and the destination port are not changed, and then the packet is forwarded.
  • the router translates the destination IP address and port of the result packet into 10.1.1.48:6084, thereby implementing communication between the host in the local area network and the server outside the local area network.
  • the router In the above routing process, the router generates a NAT forwarding entry, and the entry including the address, port number, and NAT translated address and port number before NAT conversion is generated during NAT conversion.
  • the forwarding entry in the above example can be:
  • the router When the router receives a packet with the destination address of 202.196.3.23 and port number 32814 from the outside, the destination address of the data packet is changed to 10.1.1.48 and the port number is changed to 6084.
  • the inventors found that at least the following problems exist in the prior art: Because the existing NAT service processing, the NAT services are centralized on one processor for processing, when needed in a short time When processing a large number of NAT services, if the NAT service is still centralized on one processor for processing, the processing NET service capability will be degraded, and the network will be degraded. Waste of resources. Summary of the invention
  • the embodiment of the invention provides a method, a system and a processor for processing a network address translation service, which can improve the performance of the system for processing a NAT service.
  • a method for processing a network address translation service includes:
  • the NAT service processor that processes the NAT service is selected in the at least two NAT service processors for the message that needs to be processed by the NAT service.
  • a message transceiver processor includes:
  • the NAT service identification unit is configured to perform NAT service identification on the received packet, and determine a packet that needs to be processed by the NAT service.
  • a processing unit configured to, in the at least two NAT service processors, determine, for the NAT service identification unit, a message that requires NAT service processing to select a corresponding NAT service processor that processes the message NAT service.
  • a processing system for a network address translation service comprising:
  • At least two NAT service processors are configured to perform NAT service processing on the packet
  • the packet sending and receiving processor is configured to perform NAT service identification on the received packet, and select, in the at least two NAT service processors, a corresponding NAT service for processing the NAT service for the packet that needs to be processed by the NAT service. processor.
  • the packet sending and receiving processor delivers the packet that needs to be processed by the NAT service to the corresponding NAT service processor by using the NAT service identification, and each NAT
  • the service processor can independently perform NAT service processing on the packet. Therefore, a large number of NAT service processing tasks in the system can be shared by multiple AT service processors, thereby avoiding concentrating excessive NAT services on one processor.
  • the processing power of the whole machine caused by the processing on the NET is degraded and the network resources are wasted.
  • the processing method provided by the embodiment of the present invention can effectively improve the NAT service processing capability of the system.
  • FIG. 1 is a schematic diagram of implementing NAT services in the prior art
  • FIG. 2 is a schematic flowchart of a method according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for processing a NAT service of a forward flow packet according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a method for processing a NAT service of a reverse flow packet according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a packet sending and receiving processor according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a system according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a NAT service processor according to an embodiment of the present invention. detailed description
  • a processing scheme of the network address translation service is provided, that is, the distributed processing of the NAT service in the distributed system may be specifically received.
  • the NAT service processor is selected in the at least two NAT service processors for the NAT service processing, and the corresponding NAT service processor performs the NAT service processing on the packet.
  • the NAT service processor corresponds to at least one public network address, and the public network addresses corresponding to the NAT service processors are different.
  • the method further includes configuring, according to the at least one configuration policy, a NAT service processor that processes the NAT service of the node message for each node in the local area network.
  • the step of the packet transceiver processor configuring the NAT service processor for each node in the local area network according to the at least one configuration policy includes: generating a NAT service processing for storing the NAT service for processing the packet of each node The routing table of the address or number.
  • the transceiver processor performs NAT service identification on the received packet, and can ensure forward and backward packets of the same stream (that is, a data flow between a node in the network and an external network device). Centralized by the same NAT service processor.
  • FIG. 2 is a schematic flowchart of a method according to an embodiment of the present invention. The method provided by the embodiment of the present invention is described in detail below with reference to FIG. 2 . As shown in FIG. 2, specific steps may include:
  • Step 21 The packet transceiver processor configures a NAT service processor for each node in the network to process the NAT service of the packets of each node in the network according to the at least one configuration policy; and the packet transceiver processor saves the configuration process.
  • the configuration policy may be a policy configured based on the intranet address of the node in the local area network; or a policy configured based on the port number of the node in the local area network; or based on other identifiers of the nodes in the local area network; A policy for configuring the configuration; therefore, there may be multiple configuration policies in the embodiment of the present invention; if the configuration policy is configured based on the intra-network address of each node, each address pool (including multiple intra-network nodes) will be configured during configuration.
  • Intranet address is bound to the corresponding NAT
  • the NAT service related to the address in the address pool is processed by the NAT service processor; if the configuration policy is configured based on the port number or other identifier of each node, the processing principle is similar to the above;
  • Step 22 After receiving the packet, the packet sending and receiving processor performs NAT service identification on the packet, and selects a corresponding NAT service processor (that is, the NAT service of the packet).
  • the method may include: determining whether the received packet is The NAT service processing is required. If not, the received packet is processed. If necessary, the corresponding NAT service processor is selected to perform NAT service processing on the packet.
  • the specific implementation may include steps A and / Or step B (not shown in Figure 2):
  • Step A If a forward flow packet is sent from the local area network to the public network, the corresponding configuration policy is searched according to the information, and the address or number of the corresponding NAT service processor is searched according to the found configuration policy. For example, when the intranet address of the node is used as the configuration policy, the address or number of the corresponding NAT service processor is searched according to the forward flow packet information (including the source node information of the sent packet, etc.); After the processor, sending the forward stream to the NAT service processor;
  • Step B If the reverse flow packet sent from the public network to the local area network is received, the routing table generated during the configuration is configured according to the destination address of the reverse flow packet (the public network address at this time). Searching for a NAT service processor corresponding to the destination address (each NAT service processor has a corresponding public network address), and after determining the corresponding NAT service processor, sending the reverse flow packet to the NAT service processor ;
  • Step 23 The NAT service processor performs the NAT service processing on the packet, and returns the packet processed by the NAT service to the packet transceiver processor, and the packet transceiver processor sends the packet.
  • the packet may include step C and/or Step D (not shown in Figure 2):
  • Step C performing NAT service processing on the forward flow packet; for example, when the source address of the received forward flow packet is the address in the address pool bound to the NAT service processing, Converting the intra-network address and port number of the forward stream to the public network address and port number corresponding to the NAT service processor, and then returning the packet processed by the NAT service to the packet transceiver processor. Packet sending and receiving The processor sends it;
  • Step D Perform NAT service processing on the reverse flow packet; for example, convert the destination address and port number of the reverse flow packet into an intranet address and port number; and then process the packet processed by the NAT service. Returned to the message transceiving processor, the message transceiving processor sends it.
  • the configuration policy in the embodiment of the present invention may be an intranet address, a port number, and a network node of the network node.
  • the configuration policy in the embodiment of the present invention includes multiple policies, and the packet transceiver processor can simultaneously configure nodes in the system according to various policies, so each NAT service processor can At the same time, the address pools obtained according to different configuration policies are bound to each other; and each packet transceiver processor stores various configuration policies and a routing table generated according to various configuration policies. When sending and receiving packets, each packet transceiver can process according to the stored configuration policy and routing table.
  • the NAT service is implemented in a distributed processing manner in a distributed system, that is, at least one packet transceiver processor in the system, At least two NAT service processors can process the NAT service, which can meet the requirements of the system to process a large number of NAT services in a short period of time, and can effectively improve the NAT service processing capability of the system.
  • FIG. 3 is a flowchart of a method for processing a NAT service of a forward flow message according to an embodiment of the present invention.
  • the packet transceiver processor Before performing the following NAT service for processing the forward packet, the packet transceiver processor has configured the corresponding NAT service processor for each node according to the configuration policy, and has generated a NAT for storing the packet processing each node.
  • the routing table for the NAT service processor address or number of the service.
  • the specific steps of processing the NAT service of the forward stream in the embodiment of the present invention may include:
  • Method 31 After receiving the forward flow message sent from the local area network to the public network, the packet transceiver processor may search for a corresponding configuration policy according to the information of the forward flow message; for example, when the specific implementation is performed, Find the corresponding configuration policy by using the source address and other information of the text; Step 32: If the corresponding configuration policy is found, proceed to step 33; if the corresponding configuration policy is not found, proceed to step 35;
  • Step 33 Find the address or number of the corresponding NAT service processor according to the configuration policy. For example, if the configuration policy is based on the address of the node, the source address of the forward flow packet is searched according to the configuration policy. (that is, the source node address of the packet is sent). If the source address belongs to an address pool, the NAT service processor bound to the address pool is the corresponding NAT service processor. Sending a message to the corresponding NAT service processor; proceeding to step 34;
  • Step 34 After receiving the forward flow packet, the corresponding NAT service processor performs NAT service processing on the forward flow packet.
  • the intranet address of the forward flow packet can be modified to the NAT.
  • the public network address corresponding to the service processor that is, the external public address of the system
  • the port number or other identifier is modified accordingly to generate a forwarding entry and then stored.
  • the packet processed by the NAT service is returned to the packet.
  • the transceiver processor sends the message to the transceiver; the process ends.
  • Step 35 Perform other processing on the forward flow packet; end the process.
  • FIG. 4 is a flowchart of a method for processing a NAT service of a reverse flow message according to an embodiment of the present invention.
  • the packet transceiver processor Before performing the following NAT service for processing reverse flow packets, the packet transceiver processor has configured the corresponding NAT service processor for each node according to the configuration policy, and has generated and stored the NAT for processing the packets of each node.
  • the routing table for the NAT service processor address or number of the service.
  • the specific steps of processing the NAT service of the reverse flow packet in the embodiment of the present invention may include:
  • Step 41 After receiving the reverse flow message sent from the public network to the local area network, the packet sending and receiving processor can search for the NAT route according to the generated routing table and the destination address of the reverse flow message, that is, the search and the The NAT service processor corresponding to the destination address of the reverse flow packet; in actual applications, the system may have multiple NAT service processors, and each NAT service processor corresponds to one (of course, several) public network addresses. For example, there are three NAT service processors in the system, and the external network addresses (that is, the public network addresses) are respectively 202.18.245.1, 202.18.245.2, and 202.18.245.3. When the packet receiving and receiving processor receives the destination address of 202.18.245.2 When the reverse stream message is sent, the message transceiver processor checks Find the NAT service processor corresponding to the 202.18.245.2 address;
  • Step 42 If the NAT route of the reverse flow packet is found, that is, the NAT service processor corresponding to the destination address of the reverse flow packet is found, step 43 is performed; if no NAT route is found, the process is performed. Step 45;
  • Step 43 The packet transceiver processor forwards the reverse stream packet to the record recorded in the routing table.
  • Step 44 After receiving the text, the NAT service processor corresponding to the destination address of the >3 ⁇ 4 text performs NAT service processing on the packet; for example, the specific implementation may search for a related NAT forwarding table generated when the NAT service is processed. According to the forwarding entry, the destination address of the packet is converted into the intranet address and port number of the destination node; and then the packet processed by the NAT service is returned to the packet transceiver processor, and the packet transceiver processor It sends; ends the process.
  • Step 45 The packet sending and receiving processor performs other processing on the reverse stream packet.
  • the process ends.
  • the foregoing describes the process of performing NAT service processing on the forward flow packet and the reverse flow packet in the embodiment of the present invention.
  • each packet transceiver processor can receive the packet from the external network, and can also receive the packet. Packets of the internal network, and each packet transceiver processor can allocate packets that need to be processed by the NAT service to the NAT service processors according to the configuration policy.
  • Each NAT service processor generates a forwarding entry when performing NAT service processing.
  • each NAT service processor can also mutually assist in completing NAT functions of some special applications, such as backing up data to each other.
  • FIG. 5 is a schematic diagram of a specific application process process according to an embodiment of the present invention.
  • the specific application process of the embodiment of the present invention will be described in detail below with reference to FIG. As shown in Figure 5, the corresponding specific process can include:
  • Step 51 The packet transceiver processor searches for the NAT route according to the destination address of the received packet.
  • the packet may be from the external network.
  • the destination address of the packet is the external network address and port number of the system, that is, the public address.
  • the network address and port number may also come from the internal network (that is, the source address and port number of the packet are the intranet address and port number);
  • Step 52 The packet sending and receiving processor performs NAT service identification on the received packet, and includes determining whether the packet needs to be processed by the NAT service. If necessary, performing step 53. If not, performing the packet processing on the packet. Other processing;
  • the external network addresses are 202.18.245.1, 202.18.245.2, and 202.18.245.3.
  • the transceiver processor searches for a NAT service processor corresponding to the 202.18.245.2 address;
  • Step 53 If the NAT service processor corresponding to the destination address of the packet is found, the message is a reverse flow message, and step 54 is performed; if not, step 55 is performed;
  • Step 54 Forward the packet to the NAT service processor corresponding to the destination address of the packet according to the routing table generated during the configuration, and the NAT service processor performs NAT service processing on the packet.
  • the NAT is implemented in specific implementation.
  • the service processor can search for the relevant NAT forwarding entry generated when the NAT service is processed, and convert the destination address of the packet to the intranet address and port number of the destination node according to the forwarding entry; and then process the NAT service.
  • the packet is returned to the packet transceiver processor, and the packet transceiver processor transmits it; the process ends.
  • Step 55 The packet transceiver processor searches for a corresponding NAT configuration policy; that is, the corresponding configuration policy can be found according to the packet information;
  • Step 56 If the corresponding configuration policy is found, the message is a forward flow message, and step 58 is performed; if the corresponding configuration policy is not found, step 57 is performed;
  • Step 57 Perform other processing on the packet; end the process.
  • Step 58 Find a corresponding NAT service processor address or number according to the configuration policy, and send the packet to the NAT service processing server for processing; the NAT service processing server performs NAT service processing on the packet, for example, The intranet address of the packet is changed to the external IP address of the system, and the port number or other identifier is modified accordingly. Then, the packet processed by the NAT service is returned to the packet transceiver processor, and the packet is sent and received. The device sends it; ends the process.
  • the above content describes whether to determine whether the received packet is a reverse stream packet, and then determine whether it is The process of forwarding a packet in the forward direction. In the specific application, it is also possible to determine whether the packet is a forward stream packet and then determine whether it is a reverse stream packet.
  • the embodiment of the present invention further provides a packet sending and receiving processor, which is configured to perform NAT service identification on the received packet, and select and process the packet for the packet that needs to be processed by the NAT service in at least two NAT service processors.
  • the corresponding NAT service processor of the NAT service sends the packet processed by the NAT service.
  • FIG. 6 is a schematic structural diagram of a packet sending and receiving processor according to an embodiment of the present invention. As shown in FIG. 6, this embodiment may include:
  • the configuration unit 61 is configured to store a configuration policy, and configure a NAT service processor for each node in the network according to at least one configuration policy;
  • the routing unit 62 is configured to store a routing table generated when the configuration unit 61 configures a NAT service processor for each node in the network; and the routing table stores a NAT service processor address of a NAT service for processing packets of each node. Or number
  • the NAT service identification unit 63 is configured to perform NAT service identification on the received packet. In this embodiment, the NAT service identification unit 63 determines whether the received packet needs NAT service processing, and sends the determination result to the Processing unit 64;
  • the processing unit 64 is configured to: in the at least two NAT service processors, determine, by the NAT service identification unit 63, a NAT service processor that processes the NAT service for the packet that needs to be processed by the NAT service; When the packet received by the NAT service identification unit 63 is a forward flow message and the forward flow message is required to be processed by the NAT service, the processing unit 64 searches for the corresponding one of the configuration units 61 according to the information of the sent message.
  • the processing unit 64 searches for the address of the corresponding NAT service processor by using the routing table stored by the routing unit 62 according to the destination address information of the reverse flow packet. Or number, and send the received message to the NAT service processor corresponding to the address or number;
  • processing unit 64 is further configured to: send the processed packet returned by the corresponding NAT service processor; or perform other processing on the received packet that does not need to perform NAT service processing;
  • the packet sending and receiving processor may further include a sending unit, configured to send the configuration policy in the configuration unit 61 and the routing table generated by the routing unit 62 to other packet sending and receiving processors.
  • a sending unit configured to send the configuration policy in the configuration unit 61 and the routing table generated by the routing unit 62 to other packet sending and receiving processors.
  • FIG. 7 is a schematic structural diagram of a system according to an embodiment of the present invention. As shown in FIG. 7, in this embodiment, the system includes a first packet transceiving processor, a second packet transceiving processor, a first NAT service processor, a second NAT service processor, and a third NAT service processing. , a fourth NAT service processor, a fifth NAT service processor, and a sixth NAT service processor.
  • the functions and structures of the first packet transceiving processor and the second packet transceiving processor are the same as those of the packet transceiving processor, and are not repeatedly described herein.
  • the functions and structures of the first NAT service processor, the second NAT service processor, the third NAT service processor, the fourth NAT service processor, the fifth NAT service processor, and the sixth NAT service processor are the same, Repeatedly, in this embodiment, the function and structure of the first NAT service processor are described.
  • the first NAT service processor is configured to perform NAT service processing on the packet.
  • FIG. 8 is a schematic structural diagram of a NAT service processor according to an embodiment of the present invention.
  • the specific structure of the first NAT service processor in the system shown in FIG. 7 can be as shown in FIG. 8, and may include:
  • the storage unit 81 is configured to store a forwarding entry generated in a process of processing a NAT service, and store node information configured by the first packet transceiver processor, where the node information includes node address information, or a port. Number, or other identification; etc.; also stores the corresponding public network address information and port number;
  • the processing unit 82 is configured to perform NAT service processing on the received packet.
  • the processing unit 82 sets the source address of the forward flow packet from the intranet address and the port number according to the forwarding entry stored by the storage unit 81 and the configured node address and the external public network address and port number ( And the related identifier) is converted into a public network address and port number (and corresponding identifier); or, the destination address and port number (and related identifier) of the reverse flow packet are converted into an intranet address and port number (and corresponding identifier)
  • the packet processed by the NAT service is returned to the first packet transceiver processor.
  • the first NAT service processor may further include an assistance unit, configured to perform information interaction with other NAT service processors, and assist other NAT service processors to complete NAT functions of some special applications, including backing up other NAT service processing. Data.
  • an assistance unit configured to perform information interaction with other NAT service processors, and assist other NAT service processors to complete NAT functions of some special applications, including backing up other NAT service processing. Data.
  • the system for network address translation in the embodiment of the present invention may be set in a local area network or other network organization.
  • the NAT service is implemented by the distributed processing system in the distributed system in the embodiment of the present invention, that is, the NAT service is transmitted and received by at least one of the systems. And at least two NAT service processors to process the NAT service, which can meet the requirement that the system processes a large number of NAT services in a short period of time, and can effectively improve the NAT service processing capability of the system.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)

Abstract

L'invention concerne un procédé et un système de traitement et un processeur pour un service de conversion d'adresse de réseau (NAT), le procédé comprenant : après exécution de l'identification du service NAT vis-à-vis des messages reçus, la sélection des processeurs de service NAT correspondants, qui traitent le service NAT de messages pour les messages que l'on souhaite voir traiter par le service NAT, parmi au moins les deux processeurs de service NAT. Le besoin de traiter un grand nombre de services NAT du système dans un temps bref peut être satisfait et la capacité de traitement pour le traitement de services NAT du système peut être singulièrement améliorée à l’aide de ce procédé.
PCT/CN2009/070703 2008-06-02 2009-03-09 Procédé et système de traitement et processeur pour service de conversion d'adresse de réseau WO2009146615A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/469,359 US8149840B2 (en) 2008-06-02 2009-05-20 Method, system and processor for processing network address translation service

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200810114418.X 2008-06-02
CNA200810114418XA CN101299773A (zh) 2008-06-02 2008-06-02 一种实现网络地址转换的方法、处理器和系统

Publications (1)

Publication Number Publication Date
WO2009146615A1 true WO2009146615A1 (fr) 2009-12-10

Family

ID=40079452

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/070703 WO2009146615A1 (fr) 2008-06-02 2009-03-09 Procédé et système de traitement et processeur pour service de conversion d'adresse de réseau

Country Status (2)

Country Link
CN (1) CN101299773A (fr)
WO (1) WO2009146615A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111866110A (zh) * 2020-07-13 2020-10-30 浙江捷创方舟数字技术有限公司 一种工业设备通信方法以及5g网关

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011077804A (ja) * 2009-09-30 2011-04-14 Oki Networks Co Ltd 通信装置およびその通信方法
CN102821165B (zh) * 2012-04-13 2016-08-03 中兴通讯股份有限公司 Ip地址转换方法及装置
CN104065759A (zh) * 2013-03-22 2014-09-24 杭州迪普科技有限公司 一种提高nat地址池资源利用效率的方法及装置
CN103731356B (zh) * 2013-12-09 2017-05-24 福建星网锐捷网络有限公司 报文处理方法及装置
WO2018094743A1 (fr) * 2016-11-28 2018-05-31 华为技术有限公司 Procédé de traitement de paquet et dispositif informatique

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040193677A1 (en) * 2003-03-24 2004-09-30 Shaul Dar Network service architecture
CN1825828A (zh) * 2005-02-24 2006-08-30 北京风行在线技术有限公司 一种两端均处于不同nat下直接穿透通信的控制方法和设备
US7139841B1 (en) * 2002-07-24 2006-11-21 Cisco Technology, Inc. Method and apparatus for handling embedded address in data sent through multiple network address translation (NAT) devices
CN101047548A (zh) * 2006-03-31 2007-10-03 株式会社日立制作所 多个nat的私有网络内的通信
CN101136926A (zh) * 2007-10-12 2008-03-05 杭州华三通信技术有限公司 非对称路由情况下的报文转发方法及网络地址转换网关
CN101141494A (zh) * 2007-10-12 2008-03-12 杭州华三通信技术有限公司 一种解决负载分担情况下资源分配冲突的方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7139841B1 (en) * 2002-07-24 2006-11-21 Cisco Technology, Inc. Method and apparatus for handling embedded address in data sent through multiple network address translation (NAT) devices
US20040193677A1 (en) * 2003-03-24 2004-09-30 Shaul Dar Network service architecture
CN1825828A (zh) * 2005-02-24 2006-08-30 北京风行在线技术有限公司 一种两端均处于不同nat下直接穿透通信的控制方法和设备
CN101047548A (zh) * 2006-03-31 2007-10-03 株式会社日立制作所 多个nat的私有网络内的通信
CN101136926A (zh) * 2007-10-12 2008-03-05 杭州华三通信技术有限公司 非对称路由情况下的报文转发方法及网络地址转换网关
CN101141494A (zh) * 2007-10-12 2008-03-12 杭州华三通信技术有限公司 一种解决负载分担情况下资源分配冲突的方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111866110A (zh) * 2020-07-13 2020-10-30 浙江捷创方舟数字技术有限公司 一种工业设备通信方法以及5g网关
CN111866110B (zh) * 2020-07-13 2023-12-19 浙江捷创方舟数字技术有限公司 一种工业设备通信方法以及5g网关

Also Published As

Publication number Publication date
CN101299773A (zh) 2008-11-05

Similar Documents

Publication Publication Date Title
EP2206052B1 (fr) Procédés et appareils de gestion des adresses liées à des partitions virtuelles d'un dispositif d'échange de session
CN107181688B (zh) 一种sdn网络中实现服务器端跨域数据传输优化的系统和方法
US8149840B2 (en) Method, system and processor for processing network address translation service
TW202026896A (zh) 在網路路由環境中的非同步物件管理機制
US11133949B2 (en) Method and device for establishing multicast data channel in network virtualization system
JP4587446B2 (ja) ネットワークシステム、並びにスイッチ装置及び経路管理サーバ及びそれらの制御方法、及び、コンピュータプログラム及びコンピュータ可読記憶媒体
US8549120B2 (en) System and method for location based address assignment in the distribution of traffic in a virtual gateway
WO2016134624A1 (fr) Procédé, dispositif et système de routage, et procédé et dispositif de répartition de passerelle
WO2014190791A1 (fr) Procédé de configuration d'identité de dispositif formant passerelle, et dispositif formant passerelle de gestion
CN101043430B (zh) 一种设备之间网络地址转换的方法
CN102355417A (zh) 一种数据中心二层互联方法和装置
WO2009052668A1 (fr) Dispositif nat-pt et procédé de répartition de charge pour un dispositif nat-pt
CN107094110B (zh) 一种dhcp报文转发方法及装置
EP2584742B1 (fr) Procédé et commutateur d'envoi de paquets
WO2009146615A1 (fr) Procédé et système de traitement et processeur pour service de conversion d'adresse de réseau
CN103118148A (zh) 一种arp缓存更新方法和设备
WO2009129707A1 (fr) Procédé, appareil et système de communication pour envoyer et recevoir des informations entre réseaux locaux
WO2013107245A1 (fr) Procédé, dispositif et système de mise en oeuvre de la multidiffusion dans un campus trill (interconnexion transparente d'un grand nombre de liens)
JP7314219B2 (ja) データ伝送方法、装置、およびネットワークデバイス
WO2021143279A1 (fr) Procédé et dispositif pour le traitement de service de routage de segments, équipement de routage, et support de stockage
WO2023173720A1 (fr) Procédé d'accès à une application, ensemble mandataire en nuage, ensemble mandataire de nœud, dispositif et support
US7773613B2 (en) Communication control method and system
WO2009094921A1 (fr) Procédé de renvoi de multidiffusion et routeur de multidiffusion
WO2012068854A1 (fr) Procédé et dispositif pour actualiser l'adresse de demande d'accès au support physique (mac)
CN114172865B (zh) 一种云网络下IPv6双栈的实现方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09757049

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09757049

Country of ref document: EP

Kind code of ref document: A1