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WO2018133051A1 - Procédé et dispositif de détection de conflit d'adresse - Google Patents

Procédé et dispositif de détection de conflit d'adresse Download PDF

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Publication number
WO2018133051A1
WO2018133051A1 PCT/CN2017/071991 CN2017071991W WO2018133051A1 WO 2018133051 A1 WO2018133051 A1 WO 2018133051A1 CN 2017071991 W CN2017071991 W CN 2017071991W WO 2018133051 A1 WO2018133051 A1 WO 2018133051A1
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WO
WIPO (PCT)
Prior art keywords
address
conflict
access gateway
registration message
voice access
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2017/071991
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English (en)
Chinese (zh)
Inventor
周懿
欧阳文斌
左利均
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Filing date
Publication date
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Priority to PCT/CN2017/071991 priority Critical patent/WO2018133051A1/fr
Publication of WO2018133051A1 publication Critical patent/WO2018133051A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a method and an apparatus for checking an address conflict.
  • VoIP Voice over Internet Protocol
  • a call control device and a call access device such as a terminal are usually included.
  • a call control device may access a large number of call access devices, such as an optical network terminal (ONT).
  • ONT optical network terminal
  • the call access device may not receive the signaling message sent by the call control device, and the call access device cannot successfully access the call control device or the call access device. After successfully accessing the call control device, the call access device cannot establish a call or release a call. If there is a conflict in the media IP address, the call access device may not receive the media stream information of the call answering device normally, resulting in no sound after the call is established, or the voice quality is poor during the call.
  • ARP address resolution protocol
  • the local address conflict check indicates that, for the two directly connected devices A and B, device A broadcasts its own IP address through the free ARP packet. If device B receives the ARP packet, it finds this. If the IP address of the ARP packet is the same as the IP address of the ARP packet, the device considers that the IP address conflicts.
  • the remote address conflict check indicates that the device A and the device B are sent to the gateway. After receiving the two ARP packets, the ARP packet considers that the IP address of device A is the same as the IP address of device B.
  • the above implementation can successfully check whether there is an IP address conflict between the two devices.
  • the ARP protocol used in the ARP packet belongs to the Layer 2 protocol and runs on the Layer 2 network. Therefore, the above check for IP address conflicts.
  • only the address conflicts in the same network segment can be checked, that is, only the IP address conflicts between different devices accessing the same gateway at the lowest level can be checked. In this way, the limitation of the IP address conflict checking process is increased, and the accuracy of the conflict checking process is reduced.
  • the embodiment of the invention provides a method and a device for checking an address conflict, which can reduce the limitation of the IP address conflict checking process and improve the accuracy of the conflict checking process.
  • an embodiment of the present invention provides a method for checking an address conflict, including the following steps: First, receiving a registration message, where the registration message carries at least an IP address and identification information of a voice access gateway, where the IP address is at least Including the signaling IP address and the media IP address; then, determining whether there is an IP address that conflicts with the IP address; if it is determined that there is an IP address that conflicts with the IP address, sending an address conflict alarm message to the OSS, the address conflict alarm The message carries at least the cause of the conflict, and the cause of the conflict includes at least the same signaling IP address and/or the same media IP address.
  • the address conflict check process is performed on the upper device of the voice access gateway. Therefore, the address conflict check can check whether there is an address conflict between the lowest-level directly connected devices, and check the devices in different network segments. Is there an address conflict between them? In this way, the inspection scope is expanded from the same network segment to multiple network segments, thereby reducing the limitation of the IP address conflict checking process. As the limitations of checking address conflicts are reduced, the number of devices that can implement IP address conflict checking is also greatly increased, so that the accuracy of the conflict checking process can be further improved. Therefore, the problem caused by IP address conflict checking using ARP packets is solved.
  • the above method can be applied to a call control device or to an address translation NAT device.
  • the application device gateway ALG is configured on the NAT device
  • the NAT device is configured to convert the internal network IP address in the registration message sent by the voice access gateway to the NAT device to the external network IP address, for the ALG.
  • the intranet IP address is obtained by parsing the registration message sent by the voice access gateway to the NAT device.
  • the execution subject of the check address conflict can be the call control device located on the core network side, or the NAT device acts as the execution subject of the check address conflict when the NAT device exists in the VoIP network system.
  • the method further includes: if it is determined that there is no IP address conflicting with the IP address, saving IP address of the voice access gateway. In this way, when the NAT device performs the IP address conflict check again, the current IP address conflict check can be performed based on the saved IP address of the voice access gateway that has not previously collided.
  • the method further includes: if it is determined that there is no IP address conflicting with the IP address, The IP address carried in the registration message and the identification information of the voice access gateway are recorded in the address list.
  • the address list is used to store the IP address of the voice access gateway that has completed registration. In this way, when the call control device performs the IP address collision check again, the current IP address conflict check can be performed based on the IP address of the voice access gateway that has not been collided before being recorded in the address list.
  • the call control device can not only complete the first IP address conflict check process in the networking environment, but if the previous address translation device has completed the IP address rush In the case of a sudden check, it is equivalent to the call control device performing a collision check of the secondary IP address. It should be noted that if the call control device is currently performing a collision check of the secondary IP address, the result of the IP address conflict check performed by the address translation device for the first time is that there is no conflicting IP address. In other words, if the address translation device detects that there is a conflict in the IP address, in order to save the resources occupied during the IP address check, the response message of the registration failure may be directly fed back to the voice access gateway, thereby ending the IP address check. process.
  • the registration message if the registration message is forwarded via the NAT device, the registration message carries the identification information of the NAT device. This can facilitate the call control device to effectively distinguish between registration messages forwarded by different NAT devices.
  • the method further includes: if it is determined that there is an IP address that conflicts with the IP address, sending a response message to the voice access gateway.
  • the response message corresponds to the registration message, and the response message carries at least the conflict reason. It can be seen that once the conflicting IP address is detected, the NAT device or the call control device, which is the execution body of the checking process, can feed back a response message to the voice access gateway, and notify the voice access gateway of the failure result and the cause of the conflict. .
  • the embodiment of the present invention provides an apparatus for inspecting an address conflict, which may implement a function performed by a NAT device or a call control device in the foregoing method embodiment, and the function may be implemented by hardware or by hardware.
  • Software implementation, the hardware or software includes one or more corresponding modules of the above functions.
  • the apparatus includes a processor and a transceiver configured to support the apparatus to perform the corresponding functions of the above methods.
  • the transceiver is used to support communication between the device and other network elements.
  • the apparatus can also include a memory for coupling with the processor that retains the program instructions and data necessary for the apparatus.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions for use in the above apparatus, including a program designed to perform the above aspects.
  • the ARP packet is used to check the IP address conflict between different devices accessing the same gateway.
  • the solution is to receive the IP address and the identifier information of the voice access gateway. After the registration message, it is determined whether there is an IP address that conflicts with the IP address according to the IP address, and if there is a conflicting IP address, an address conflict warning message carrying the conflict cause is sent to the operation support system.
  • the address conflict check process is performed on the upper device of the voice access gateway. Therefore, the address conflict check can check whether there is an address conflict between the lowest-level directly connected devices, and check the devices in different network segments. Is there an address conflict between them?
  • the inspection scope is expanded from the same network segment to multiple network segments, thereby reducing the limitation of the IP address conflict checking process.
  • the limitations of checking address conflicts are reduced, the number of devices that can implement IP address conflict checking is also greatly increased, so that the accuracy of the conflict checking process can be further improved. Therefore, the problem caused by IP address conflict checking using ARP packets is solved.
  • FIG. 1 is a schematic structural diagram of a VoIP network system according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for checking an address conflict according to an embodiment of the present invention
  • FIG. 3 is a signaling interaction diagram of an address conflict checking method according to an embodiment of the present disclosure
  • FIG. 4 is a signaling interaction diagram of another method for checking an address conflict according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of an apparatus for checking an address conflict according to an embodiment of the present disclosure
  • FIG. 6 and FIG. 7 are schematic diagrams showing the structure of another apparatus for checking an address conflict according to an embodiment of the present invention.
  • the embodiment of the present invention can be used in a VoIP network system.
  • the VoIP network system at least a call control device and a call access device attempting to access the call control device are included.
  • the execution subject of the address conflict check may be a call control device located on the core network side, or may be used by the address translation device when there is a Network Address Translation (NAT) device in the VoIP network system.
  • NAT Network Address Translation
  • the execution body of the address conflict may be disposed on the address translation device.
  • the address translation device is configured to convert the intranet IP address in the registration message sent by the voice access gateway to the address translation device to an external network IP address;
  • the application layer gateway is configured to parse the registration sent by the voice access gateway to the address translation device. Message, get the internal network IP address.
  • FIG. 1 is a schematic structural diagram of a possible VoIP network system.
  • any one of the voice access gateways (VoIP-Access Gateways, VoIP-AGs) 1 to 3 is not shown.
  • the voice access gateway can communicate with the call control device by using the address translation device.
  • both the voice access gateway 1 and the voice access gateway 2 as shown in FIG. 1 establish a communication connection with the address translation device 1, and then
  • the address conversion device 1 performs data interaction with the call control device; the voice access gateway can also directly communicate with the call control device, for example, the voice access gateway 3 as shown in FIG.
  • there may be one or more address translation devices for address translation such as address translation device 1 and address translation device 2 as shown in FIG.
  • gateways respectively provided on the address switching device 1 and the address translation device 2 are not shown in FIG.
  • the gateway shown in FIG. 1 may specifically be the Office of Strategic Services (OSS) or other devices or devices that can be used to manage the entire VoIP network system.
  • OSS Office of Strategic Services
  • An embodiment of the present invention provides a method for checking an address conflict. As shown in FIG. 2, the method may be performed by the call control device or the address translation device shown in FIG. 1. Of course, in other special application scenarios, Executed by other devices, the execution subject is not restricted here.
  • the method includes:
  • Step 101 Receive a registration message.
  • the registration message carries at least the IP address and the identifier information of the voice access gateway, and the IP address includes at least the signaling IP address and the media IP address.
  • the registration message may be an existing message such as OPTION, REGISTER, SUBSCRIBE, INVITE, INFO, UPDATE, MESSAGE, or an extension of a new request message as a registration message to complete
  • SIP Session Initiation Protocol
  • the registration message may be an existing message such as OPTION, REGISTER, SUBSCRIBE, INVITE, INFO, UPDATE, MESSAGE, or an extension of a new request message as a registration message to complete
  • the IP address and identification information are reported.
  • the existing header field may be extended to carry the foregoing IP address and identification information, for example, an existing header field such as Contact, Route, Via, or the like, or a new header field.
  • the IP address can be specifically recorded as:
  • IP-Info 4242-2121-E1E1
  • the call control device is located in the IP Multimedia Subsystem (IMS) and there is a Session Border Controller (SBC) in the network, then The method for performing the conflict of the IP address is performed by the call control device or the address translation device.
  • IMS IP Multimedia Subsystem
  • SBC Session Border Controller
  • the registration message may be Service Change, and the device performing the IP address check may be a Media Gateway Controller (MGC); under the Media Gateway Control Protocol (MGCP), the foregoing
  • MGC Media Gateway Controller
  • the registration message may be a RestartIn Progress, that is, an MGCP command in the process is restarted, and the device performing the IP address check may also be an MGC
  • the registration message may be a Registration Request (RRQ) or an Admissions Request (ARQ). Etc., and the device performing the IP address check can be an H323 gateway.
  • the device for performing IP address check may be a specific device in the application scenario, and is not limited to a call control device or an address translation device. In the above, only some possible application scenarios are listed. In addition, other networking structures and devices for performing IP address check in the network structure may be used, and the application scenario of the embodiment of the present invention is not Do too much limit.
  • the IP addresses of different voice access gateways may be identical. Therefore, the reported registration message also needs to carry the identification information of the voice access gateway, so as to effectively distinguish different voice access gateways.
  • the identifier information may be information that is unique within the entire network, such as a Media Access Control (MAC) address of the device.
  • MAC Media Access Control
  • the identifier information carried in the registration message needs to be the same, that is, in the scenario where the address translation device exists in the network, no matter which address translation device passes.
  • the MAC address completes the forwarding of the registration message, and the application layer gateway needs to ensure that the same MAC address is used for identification.
  • Step 102 Determine whether there is an IP address that conflicts with the IP address.
  • step 103 If it is determined that there is an IP address that conflicts with the IP address, step 103 is performed; otherwise, step 104 is performed.
  • a device for checking an IP address conflict may be a call control
  • the device or the address translation device therefore, different conflict determination processes can be taken for different execution entities.
  • the voice access gateway that has data interaction with the address translation device can send a registration message to the address translation device, and carries its own IP address and identification information in the registration message.
  • the address translation device may perform the resolution of the registration message through the application layer gateway, and obtain the signaling IP address and the media IP address of the voice access gateway carried in the registration message; after that, the address translation device will The obtained plurality of sets of data are compared, wherein each set of data includes a signaling IP address and a media IP address of a voice access gateway, so that at least two voice access gateways with IP address conflicts can be found, thereby completing IP Address conflict check.
  • a voice access gateway having direct data interaction with the call control device, and an address translation device having data interaction with the call control device may send a registration message to the address translation device,
  • the IP address carried in the registration message sent by the address translation device to the call control device is the IP address converted by the address conversion device, and the subsequent check process is completed by the call control device.
  • the specific implementation process may refer to the following description, and in the two specific application scenarios shown in FIG. 3 and FIG. 4, the call control device and the address translation device are used as the execution subject of the IP address conflict check process, and the conflict check is completed. The specific implementation process.
  • Step 103 Send an address conflict alarm message to the operation support system.
  • the address conflict alarm message carries at least the conflict reason, and the conflict cause includes at least the same signaling IP address and/or the same media IP address.
  • the signaling IP address may be the same.
  • the foregoing operation support system may be a network management system as shown in FIG. 1 , and the main function is to record related information of the IP address conflict, and facilitate subsequent management and address adjustment of each device in the networking structure.
  • Step 104 According to the current execution entity, determine to save the IP address of the voice access gateway, or record the IP address carried in the registration message and the identifier information of the voice access gateway in the address list.
  • the address list is used to store the IP address of the voice access gateway that has completed registration.
  • the embodiment of the present invention can determine whether there is an IP address that conflicts with the IP address according to the IP address, and if there is a conflicting IP address, The address conflict alarm message carrying the conflicting reason is sent to the operation support system.
  • the address conflict check process is performed on the upper device of the voice access gateway. Therefore, the address conflict check can check whether there is an address conflict between the lowest-level directly connected devices, and check the devices in different network segments. Is there an address conflict between them? In this way, the inspection scope is expanded from the same network segment to multiple network segments, thereby reducing the limitation of the IP address conflict checking process. IP address conflict checking can be implemented as the limitations of checking address conflicts are reduced. The equipment has also increased significantly, which will further improve the accuracy of the conflict checking process. Therefore, the problem caused by IP address conflict checking using ARP packets is solved.
  • the address translation device is used as an execution body to check the interaction process of IP address conflicts.
  • the specific interaction process is as follows:
  • Step 201 The voice access gateway sends a registration message to the address translation device.
  • Step 202 The address translation device determines whether there is an IP address that conflicts with an IP address sent by the voice access gateway. Wherein, if it is determined to exist, step 203 and step 204 are performed, otherwise steps 205 and 206 are performed.
  • Step 203 The address translation device sends an address conflict alarm message to the operation support system.
  • Step 204 The address translation device sends a response message that the registration fails to the voice access gateway.
  • Step 205 The address translation device saves the IP address of the voice access gateway.
  • Step 206 The address translation device sends a response message of successful registration to the voice access gateway.
  • the address translation device is used as an execution entity to complete the conflict check of the IP address.
  • Step 204 and step 206 are optional steps, and the purpose is to feedback back to the voice access gateway whether there is an IP address conflict check result.
  • the application layer gateway itself is set as an optional device on the address translation device, and the purpose thereof is mainly for enhancing the routing function of the VoIP network. If the IP address of the address translation device is only one, then The application layer gateway is not one of the mandatory network elements, which means that the application layer gateway may not be set on the address translation device.
  • the call control device can perform the IP address twice after the registration message is sent to the call control device.
  • the process of conflict check refer to the method flow shown in Figure 4 for details.
  • the call control device is used as an execution body to check the interaction process of IP address conflicts.
  • the specific interaction process is as follows:
  • Step 301 The voice access gateway sends a registration message to the address translation device.
  • Step 302 The address translation device sends a registration message to the call control device.
  • Step 303 The call control device determines whether there is an IP address that conflicts with the IP address sent by the address translation device. If it is determined to exist, step 304 to step 306 are performed, otherwise steps 307 to 309 are performed.
  • Step 304 The call control device sends an address conflict alarm message to the operation support system.
  • Step 305 The call control device sends a response message that the registration fails to the address translation device.
  • Step 306 The address translation device sends a response message that the registration fails to the voice access gateway.
  • the registration message sent by the voice access gateway needs to be forwarded to the call control device by using the address translation device. Therefore, the registration message received by the call control device should also carry the identifier information of the address translation device.
  • the identifier information may be a MAC address of the address translation device or another unique identifier that can be used to distinguish different address translation devices.
  • Step 307 The call control device records the IP address carried in the registration message and the identifier information of the voice access gateway in the address list.
  • Step 308 The call control device sends a response message of successful registration to the address translation device.
  • Step 309 The address translation device sends a response message that the registration is successful to the voice access gateway.
  • the call control device is used as an execution subject to complete the conflict check of the IP address.
  • Step 305 and step 306, and step 308 and step 309 are optional steps, and the purpose is to feedback to the address translation device and the voice access gateway whether there is an IP address conflict check result.
  • the call control device can not only complete the first IP address conflict check process in the networking environment, but if the previous address translation device has completed the IP address conflict check, the call control device is equivalent to the secondary IP address. Conflict check. It should be noted that if the call control device is currently performing a collision check of the secondary IP address, the result of the IP address conflict check performed by the address translation device for the first time is that there is no conflicting IP address.
  • the address translation device detects that there is a conflict in the IP address, in order to save the resources occupied during the IP address check, the response message of the registration failure may be directly fed back to the voice access gateway, thereby ending the IP address check. process.
  • the address conflict checking device includes a hardware structure and/or a software module corresponding to each function in order to implement the above functions.
  • a hardware structure and/or a software module corresponding to each function in order to implement the above functions.
  • the embodiments of the present invention can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the embodiments of the invention.
  • the embodiment of the present invention may perform the division of the function module on the address conflict checking apparatus according to the above method example.
  • each function module may be divided according to each function, or two or more functions may be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present invention is schematic, and is only a logical function division, and the actual implementation may have another division manner.
  • FIG. 5 is a schematic diagram of a possible configuration of an apparatus for checking an address conflict involved in the foregoing embodiment.
  • the address conflict checking apparatus 40 includes: a receiving unit 41, The determining unit 42, the transmitting unit 43, and the storage unit 44.
  • the receiving unit 41 is configured to support the address conflict checking apparatus 40 to perform step 101 in FIG. 2, the step of receiving the registration message after step 201 in FIG. 3, the step of receiving the registration message after step 302 in FIG. 4;
  • the checking device 40 for supporting address conflicts performs step 102 in FIG. 2, step 202 in FIG. 3, step 303 in FIG. 4;
  • the transmitting unit 43 is configured to support the address conflict checking apparatus 40 to perform the steps in FIG. 103, step 204 or step 206 in FIG. 3, step 305 or step 308 in FIG.
  • the storage unit 44 is configured to support the address conflict checking apparatus 40 to perform step 104 in FIG. 2, step 205 in FIG. Step 307 in 4. All the related content of the steps involved in the foregoing method embodiments may be referred to the functional descriptions of the corresponding functional modules, and details are not described herein again.
  • FIG. 6 shows a possible structural diagram of an apparatus for checking an address conflict involved in the above embodiment.
  • the address conflict checking device 50 includes: communication Module 51, processing module 52, and storage module 53.
  • the communication module 51 is configured to support communication between the check device 50 of the address conflict and other network entities, or to collect corresponding commands triggered by the user, etc.
  • the processing module 52 is configured to control and manage the actions of the address conflict checking device 50.
  • the processing module 52 is configured to support address conflict checking apparatus 50 to perform step 102 in FIG. 2, step 202 in FIG. 3, step 303 in FIG. 4, and/or other processes for the techniques described herein.
  • the storage module 53 is configured to store program codes and data of the base station.
  • the communication module 51 can be a transceiver, a transceiver circuit, a communication interface, or the like.
  • the processing module 52 can be a processor or a controller, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and an application-specific integrated circuit. , ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out various exemplary logical blocks, modules and circuits described in connection with the disclosure of the embodiments of the invention.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the storage module 53 can be a memory.
  • the address conflict checking apparatus 60 may be as shown in FIG. 7. Show.
  • the address conflict checking apparatus 60 includes a processor 61, a transceiver 62, a memory 63, and a bus 64.
  • the processor 61, the transceiver 62, and the memory 63 are connected to each other through a bus 64.
  • the bus 64 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. Wait.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • Wait The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 7, but it does not mean that there is only one bus or one type of bus.
  • the steps of the method or algorithm described in connection with the disclosure of the embodiments of the present invention may be implemented in a hardware manner, or may be implemented by a processor executing software instructions.
  • the software instructions may be composed of corresponding software modules, which may be stored in a random access memory (RAM), a flash memory, a read only memory (ROM), an erasable programmable read only memory ( Erasable Programmable ROM (EPROM), electrically erasable programmable read only memory (EEPROM), registers, hard disk, removable hard disk, compact disk read only (CD-ROM) or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium.
  • the storage medium may also be an integral part of the processor, or the processor and the storage medium may also exist as discrete components in the core network interface device.
  • the functions described in the embodiments of the present invention may be implemented in hardware, software, firmware, or any combination thereof.
  • the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium.
  • Computer readable medium including computer storage Storage medium and communication medium, wherein the communication medium includes any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a general purpose or special purpose computer.

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Abstract

Les modes de réalisation de la présente invention se rapportent au domaine technique des communications. L'invention concerne un procédé et un dispositif de détection de conflit d'adresse à utiliser pour réduire les limitations pendant le processus de détection de conflit d'adresse IP et pour améliorer la précision du processus de détection de conflit. Le procédé comprend au moins les étapes consistant : à recevoir un message d'enregistrement, le message d'enregistrement portant au moins une adresse IP et des informations d'identification d'une passerelle d'accès vocal, l'adresse IP comprenant au moins une adresse IP de signalisation et une adresse IP multimédia ; à déterminer s'il existe une adresse IP en conflit avec l'adresse IP ; s'il est déterminé qu'il existe une adresse IP en conflit avec l'adresse IP, à envoyer un message d'alerte de conflit d'adresse à un OSS, le message d'alerte de conflit d'adresse acheminant au moins la cause du conflit. La cause du conflit comprend au moins que les adresses IP de signalisation sont les mêmes et/ou que les adresses IP multimédias sont les mêmes. Les modes de réalisation de la présente invention sont applicables au processus de détection de conflit d'une adresse IP.
PCT/CN2017/071991 2017-01-20 2017-01-20 Procédé et dispositif de détection de conflit d'adresse Ceased WO2018133051A1 (fr)

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Cited By (1)

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CN111416886A (zh) * 2020-03-26 2020-07-14 北京文香信息技术有限公司 一种互联网协议地址动态修改方法、装置及电子设备

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