CN112261171A - Method for determining IP camera position based on Ethernet protocol - Google Patents
Method for determining IP camera position based on Ethernet protocol Download PDFInfo
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- CN112261171A CN112261171A CN202011115181.4A CN202011115181A CN112261171A CN 112261171 A CN112261171 A CN 112261171A CN 202011115181 A CN202011115181 A CN 202011115181A CN 112261171 A CN112261171 A CN 112261171A
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000013507 mapping Methods 0.000 claims abstract description 4
- 238000012790 confirmation Methods 0.000 claims description 6
- 230000006837 decompression Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Classifications
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- 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
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
- H04L61/5014—Internet protocol [IP] addresses using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
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- 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
- H04L61/10—Mapping addresses of different types
- H04L61/103—Mapping addresses of different types across network layers, e.g. resolution of network layer into physical layer addresses or address resolution protocol [ARP]
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- 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
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4541—Directories for service discovery
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- 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
- H04L61/50—Address allocation
- H04L61/5007—Internet protocol [IP] addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/618—Details of network addresses
- H04L2101/622—Layer-2 addresses, e.g. medium access control [MAC] addresses
Abstract
The invention relates to a method for determining the position of an IP camera based on an Ethernet protocol, which comprises the following steps: acquiring a corresponding relation between an MAC Address of the camera and a port number of the exchange chip through a configuration interface of the exchange chip, and acquiring an MAC Address Table; acquiring bottom register data comprising MAC information and a corresponding port number; before sending data, an ARP cache table is searched, if the MAC address of opposite equipment exists in the cache table, the MAC address is directly adopted to package a frame, and the packaged frame is sent out; if the cache table does not have corresponding information, the ARP request message is sent to obtain the ARP request message; the learned mapping relation between the IP address and the MAC address is put into an ARP cache table to be stored for a period of time, the equipment searches a target MAC address from the ARP cache table to package data in the period of validity, and the ARP table is deleted after the period of validity; acquiring the corresponding relation between the MAC address and the IP through an ARP protocol; and binding the relation between the camera MAC and the IP through the configuration interface.
Description
Technical Field
The invention relates to the field of aviation test, and the method is applied to an unmanned aerial vehicle video display control system in aviation.
Background
The handheld operation terminal is applied to unmanned aerial vehicle configuration and maintenance, and mainly has the functions of unmanned aerial vehicle parameter configuration, state acquisition, article mounting video monitoring and recording, avionics equipment software version upgrading and the like. 4 cameras are arranged in the unmanned aerial vehicle, and a 10M/100M self-adaptive Ethernet interface is adopted externally. In order to reduce the workload of installing and maintaining the camera, camera manufacturers recommend the function of automatically acquiring the IP, and the application layer cannot distinguish the position of the camera through the IP address of the camera, so a method is urgently needed to automatically position the position of the camera on the premise of not increasing the workload of ground service staff.
Chinese invention CN201020568230.5 (application date: 10/20/2010) the utility model discloses a multi-port network hard disk video recorder, which comprises: the system comprises a main control processor, wherein an Ethernet network switching chip with a plurality of Ethernet ports is connected with one Ethernet port of the main control processor. The problem that the existing network video recorder is only provided with 1 to 2 network ports and is inconvenient to use is solved. The invention expands the Ethernet port through the Ethernet switching chip, but cannot determine the relationship between the switch port and the IP address of the equipment.
The invention CN201110331593.6 (application date: 2011, 10, 27) of China discloses a method for realizing plug and play of network monitoring videos, which is simple and convenient to operate, a network video recorder NVR adopts a plug and play module with multiple network ports, a main control chip of the module is connected with the multiple network ports through a Switch chip, and each network port corresponds to a video channel connected with an IPC (Internet protocol camera); when an IPC is inserted into a network port, the NVR obtains the MAC address of the IPC, a new IP address is allocated to the IPC through an RARP protocol, and the NVR automatically logs in the IPC after the address is allocated; when an IPC is pulled out of the network port, the NVR detects that the IPC is moved out and removes the MAC address of the IPC from the network port configuration table. The invention can identify the equipment IP by connecting the Switch chip with a plurality of network ports, but the RARP protocol is on the premise that the MAC of the network equipment is known, and then the IP information is obtained according to the protocol, otherwise, the equipment IP cannot be determined.
Disclosure of Invention
The present invention is directed to a method for determining the position of an IP camera based on an ethernet protocol, which is used to solve the above-mentioned problems in the prior art.
The invention discloses a method for determining the position of an IP camera based on an Ethernet protocol, which comprises the following steps: acquiring a corresponding relation between an MAC Address of the camera and a port number of the exchange chip through a configuration interface of the exchange chip, and acquiring an MAC Address Table; acquiring bottom register data comprising MAC information and a corresponding port number; before sending data, an ARP cache table is searched, if the MAC address of opposite equipment exists in the cache table, the MAC address is directly adopted to package a frame, and the packaged frame is sent out; if the cache table does not have corresponding information, the ARP request message is sent to obtain the ARP request message; the learned mapping relation between the IP address and the MAC address is put into an ARP cache table to be stored for a period of time, the equipment searches a target MAC address from the ARP cache table to package data in the period of validity, and the ARP table is deleted after the period of validity; acquiring the corresponding relation between the MAC address and the IP through an ARP protocol; and binding the relation between the camera MAC and the IP through the configuration interface.
In an embodiment of the method for determining the location of an IP camera based on the ethernet protocol according to the present invention, the underlying register data is obtained through the SPI or I2C interface.
According to an embodiment of the method for determining the position of the IP camera based on the ethernet protocol, the MAC information and the corresponding port number are the MAC information and the corresponding port number of the acquired camera.
According to an embodiment of the method for determining the position of the IP camera based on the ethernet protocol, after the camera and the handheld operation terminal are powered on, the handheld operation terminal starts a DHCP function, the camera serves as a client, and the DHCP client obtains an IP address from a DHCP server.
According to an embodiment of the method for determining the position of the IP camera based on the ethernet protocol, the obtaining, by the DHCP client, the IP address from the DHCP server includes: (1) in the discovery stage, a DHCP client side searches a DHCP server, and the client side sends a DHCP-DISCOVER message in a broadcasting mode; (2) a providing stage, namely a stage that a DHCP server provides an IP address, wherein after receiving a DHCP-DISCOVER message of a client, the DHCP server selects an IP address according to the priority order of IP address distribution and sends the IP address and other parameters to the client through a DHCP-OFFER message; (3) selecting stage, DHCP client end selects IP address stage, if several DHCP servers send DHCP-OFFER message to said client end, the client end only receives first received DHCP-OFFER message, and sends DHCP-REQUEST message in broadcast mode, including IP address distributed by DHCP server in DHCP-OFFER message; (4) and in the confirmation stage, the DHCP server confirms the IP address, and after the DHCP server receives a DHCP-REQUEST message sent by the DHCP client, the server selected by the DHCP client operates: if the address is allocated to the client side, returning a DHCP-ACK message; otherwise, returning DHCP-NAK message to indicate that the address can not be allocated to the client.
According to an embodiment of the method for determining the position of the IP camera based on the ethernet protocol, the hardware of the handheld operation terminal adopts a haisi video processing platform, the ethernet port is extended through the switch chip, and the 4 cameras are connected with the handheld terminal in a certain line sequence.
According to an embodiment of the method for determining the position of the IP camera based on the Ethernet protocol, after receiving a DHCP-ACK confirmation message returned by the server, the client sends a free ARP message in a broadcasting mode, detects whether a host uses an IP address allocated by the server, if no response is received within a specified time, the client uses the IP address, otherwise, the client sends a DHCP-DECLINE message to the DHCP server and applies for the IP address again.
According to an embodiment of the method for determining the IP camera position based on the ethernet protocol, the 4 IP cameras compress the video stream by using the h.264 format.
According to an embodiment of the method for determining the position of the IP camera based on the Ethernet protocol, the IP camera is connected with the handheld operation terminal through the Ethernet, and the video stream adopts an H.264 compression format; the 4 IP cameras are accessed to the exchange chip of the handheld operation terminal according to a specific line sequence; the handheld operation terminal completes the decompression and display functions of the 4-channel video; the 4-path Ethernet function of the handheld operation terminal is realized by the extension of a switching chip; the video stream decompression is realized by adopting a video decoding module in the processor; and automatically allocating an IP for the IP camera through a DHCP protocol, acquiring MAC table information through a configuration interface of the exchange chip to obtain the corresponding relation between the port of the exchange chip and the MAC of the camera, and analyzing the IP corresponding to the MAC by the handheld operation terminal according to an RARP protocol.
The invention provides a method for determining the position of an IP camera based on an Ethernet protocol, which consists of a 4-path IP camera and a handheld operation terminal. The IP camera is connected with the handheld operation terminal through the Ethernet, and the video stream adopts an H.264 compression format; the 4-path IP camera is accessed to a switching chip of the handheld operation terminal according to a specific line sequence; the handheld operation terminal completes the decompression and display functions of the 4-channel video; the 4-path Ethernet function of the handheld device is realized by the extension of a switching chip; the video code stream decompression is realized by adopting a video decoding module in the processor; the automatic identification of the position of the IP camera is to automatically allocate IP to the camera through a DHCP (dynamic Host Configuration protocol) protocol, obtain MAC (Medium Access control) table information through a switching chip Configuration interface to obtain a corresponding relation between a switching chip port and the MAC of the camera, and then analyze the IP corresponding to the MAC by the handheld device according to an RARP (reverse Address protocol) protocol; the video zooming module receives an operation command from the infrared touch screen to realize the video zooming switching function. The method can automatically identify the position information of the camera through the information provided by the Ethernet protocol and the exchange chip, does not need to carry out complicated network parameter configuration on the camera, and can greatly reduce the workload of installation, debugging and maintenance of ground service personnel.
Drawings
FIG. 1 is a functional block diagram of a system according to the present invention;
FIG. 2 is a diagram of a Mac Address Table;
fig. 3 shows the relationship between MAC address and IP address.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
A method and a device for determining the position of an IP camera based on an Ethernet protocol are provided, wherein the method comprises a 4-path IP camera and a handheld operation terminal. The hardware of the handheld operation terminal adopts a Haisi video processing platform, the processor only has 2 Ethernet ports, and 4 Ethernet ports are expanded through the exchange chip. 4 cameras link to each other with handheld terminal with certain line sequence, for example, the upper left camera connects exchange chip port 1, and the lower left camera connects exchange chip port 2, has the one-to-one corresponding relation between the position of camera and the port of exchange chip like this.
After the camera and the handheld operation terminal are powered on, the handheld operation terminal starts a DHCP function, and the camera serves as a client. The DHCP client side obtains the IP address from the DHCP server and mainly carries out the following four stages:
(1) discovery phase, i.e. the phase in which the DHCP client finds the DHCP server. The client sends DHCP-DISCOVER message in broadcast mode.
(2) And a providing stage, namely a stage of providing the IP address by the DHCP server. After receiving the DHCP-DISCOVER message of the client, the DHCP server selects an IP address according to the priority order of IP address allocation, and sends the IP address and other parameters to the client through a DHCP-OFFER message.
(3) And a selection phase, namely a phase of selecting the IP address by the DHCP client. If a plurality of DHCP servers send DHCP-OFFER messages to the client, the client only receives the first received DHCP-OFFER message and then sends a DHCP-REQUEST message in a broadcasting mode, wherein the message comprises the IP address distributed by the DHCP server in the DHCP-OFFER message.
(4) And a confirmation phase, namely a phase of confirming the IP address by the DHCP server. After the DHCP server receives the DHCP-REQUEST message sent by the DHCP client, only the server selected by the DHCP client will perform the following operations: if the address is allocated to the client side, returning a DHCP-ACK message; otherwise, returning DHCP-NAK message to indicate that the address can not be allocated to the client.
After receiving the DHCP-ACK confirmation message returned by the server, the client sends a free ARP message in a broadcasting mode to detect whether a host uses the IP address distributed by the server, and if the client does not receive a response within the specified time, the client uses the address. Otherwise, the client side sends a DHCP-DECLINE message to the DHCP server and reappears the IP address.
Through multiple rounds of negotiation, the server side automatically allocates IP addresses for the 4 cameras. However, since the IP acquisition of the four cameras is random, the positional relationship between the IP address and the camera cannot be determined, and thus, a video cannot be displayed on the liquid crystal screen in a designated order, for example, the upper left position camera is displayed on the left side of the liquid crystal screen, and the lower left camera is displayed on the right side of the liquid crystal screen.
The invention obtains the corresponding relation between the MAC Address of the camera and the port number of the exchange chip through the configuration interface of the exchange chip, namely obtaining the MAC Address Table. The specific implementation method is to write a driver of the switching chip and acquire the data of the bottom layer register through a special configuration interface (generally an SPI or an I2C interface). According to the invention, MAC (0000.0C72.1AD6) information of the camera 1 and a corresponding port number 2 (the port number in this example is Fa0/2) are obtained through a special interface, and FIG. 2 is a schematic diagram of a Mac Address Table, as shown in FIG. 2, a corresponding relation between an MAC Address and a port number is obtained, and a final target is to obtain a port relation between IP information of the camera and an exchanger, so that the corresponding relation between the IP Address and the port number can be obtained only by obtaining the corresponding relation between the MAC Address and the IP Address.
The ARP protocol is an important component in a TCP/IP protocol cluster, and can find the MAC address of a target device through a target IP address, so that the accessibility of a data link layer is realized.
The network device generally has an ARP Cache (ARP Cache) for storing information associated with an IP address and an MAC address. Before sending data, the device will look up the ARP cache table. If the MAC address of the opposite device exists in the cache table, the MAC address is directly adopted to package the frame, and then the frame is sent out. If the cache table does not have corresponding information, the ARP request message is sent to obtain the corresponding information. The learned mapping relation between the IP address and the MAC address can be put into an ARP cache table for storage for a period of time. During the validity period, the device can directly look up the destination MAC address from the table for data encapsulation without performing ARP lookup. After the period of validity, the ARP representation is automatically deleted.
Fig. 3 shows a relationship between the MAC address and the IP address, as shown in fig. 3, the corresponding relationship between the MAC address and the IP address can be obtained by using an ARP protocol, and the relationship between the MAC address and the IP address of the camera can be bound by a configuration interface according to application requirements, so that when the subsequent handheld operation terminal is connected with the camera, the position and the IP address are configured to be in a fixed relationship, thereby simplifying the process of positioning the position of the camera.
Compared with the prior art, the method of the invention automatically acquires the position of the camera through the standard Ethernet protocol and the exchange chip configuration interface, simplifies the configuration flow and greatly reduces the installation and debugging work of ground service personnel.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A method for determining the position of an IP camera based on an Ethernet protocol is characterized by comprising the following steps:
acquiring a corresponding relation between an MAC Address of the camera and a port number of the exchange chip through a configuration interface of the exchange chip, and acquiring an MAC Address Table;
acquiring bottom register data comprising MAC information and a corresponding port number;
before sending data, an ARP cache table is searched, if the MAC address of opposite equipment exists in the cache table, the MAC address is directly adopted to package a frame, and the packaged frame is sent out; if the cache table does not have corresponding information, the ARP request message is sent to obtain the ARP request message; the learned mapping relation between the IP address and the MAC address is put into an ARP cache table to be stored for a period of time, the equipment searches a target MAC address from the ARP cache table to package data in the period of validity, and the ARP table is deleted after the period of validity;
acquiring the corresponding relation between the MAC address and the IP through an ARP protocol;
and binding the relation between the camera MAC and the IP through the configuration interface.
2. The method for determining the location of an IP camera based on an ethernet protocol of claim 1, wherein the underlying register data is obtained through an SPI or I2C interface.
3. The method for determining the location of an IP camera based on the ethernet protocol as claimed in claim 1, wherein the MAC information and the corresponding port number are the MAC information and the corresponding port number of the acquisition camera.
4. The method for determining the position of an IP camera based on the ethernet protocol as claimed in claim 3, wherein after the camera and the handheld operation terminal are powered on, the handheld operation terminal starts a DHCP function, the camera is used as a client, and the DHCP client obtains an IP address from a DHCP server.
5. The method for determining the location of an IP camera based on the ethernet protocol of claim 4, wherein the DHCP client obtaining the IP address from the DHCP server comprises:
(1) in the discovery stage, a DHCP client side searches a DHCP server, and the client side sends a DHCP-DISCOVER message in a broadcasting mode;
(2) a providing stage, namely a stage that a DHCP server provides an IP address, wherein after receiving a DHCP-DISCOVER message of a client, the DHCP server selects an IP address according to the priority order of IP address distribution and sends the IP address and other parameters to the client through a DHCP-OFFER message;
(3) selecting stage, DHCP client end selects IP address stage, if several DHCP servers send DHCP-OFFER message to said client end, the client end only receives first received DHCP-OFFER message, and sends DHCP-REQUEST message in broadcast mode, including IP address distributed by DHCP server in DHCP-OFFER message;
(4) and in the confirmation stage, the DHCP server confirms the IP address, and after the DHCP server receives a DHCP-REQUEST message sent by the DHCP client, the server selected by the DHCP client operates: if the address is allocated to the client side, returning a DHCP-ACK message; otherwise, returning DHCP-NAK message to indicate that the address can not be allocated to the client.
6. The method according to claim 1, wherein the hardware of the handheld operation terminal adopts Haisi video processing platform, and the Ethernet port is extended through the switch chip, and 4 cameras are connected with the handheld terminal in a certain line sequence.
7. The method according to claim 5, wherein the client sends a gratuitous ARP message in a broadcast manner after receiving a DHCP-ACK confirmation message returned from the server, detects whether any host uses the IP address allocated by the server, and if no response is received within a predetermined time, the client uses the IP address, otherwise, the client sends a DHCP-DECLINE message to the DHCP server and reappears the IP address.
8. The method for determining the location of an IP camera based on the ethernet protocol of claim 6, wherein the 4 IP cameras compress video streams in h.264 format.
9. The method for determining the position of the IP camera based on the ethernet protocol according to claim 6, wherein the IP camera is connected to the handheld operation terminal through the ethernet, and the video stream adopts an h.264 compression format; the 4 IP cameras are accessed to the exchange chip of the handheld operation terminal according to a specific line sequence; the handheld operation terminal completes the decompression and display functions of the 4-channel video; the 4-path Ethernet function of the handheld operation terminal is realized by the extension of a switching chip; the video stream decompression is realized by adopting a video decoding module in the processor; and automatically allocating an IP for the IP camera through a DHCP protocol, acquiring MAC table information through a configuration interface of the exchange chip to obtain the corresponding relation between the port of the exchange chip and the MAC of the camera, and analyzing the IP corresponding to the MAC by the handheld operation terminal according to an RARP protocol.
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| CN202011115181.4A CN112261171A (en) | 2020-10-19 | 2020-10-19 | Method for determining IP camera position based on Ethernet protocol |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113590213A (en) * | 2021-06-24 | 2021-11-02 | 深圳开源互联网安全技术有限公司 | Component maintenance method, electronic device, and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101471966A (en) * | 2006-07-06 | 2009-07-01 | 华为技术有限公司 | Method for preventing IP address from leakage |
| CN103118148A (en) * | 2013-01-31 | 2013-05-22 | 杭州华三通信技术有限公司 | Method and device for updating ARP (address resolution protocol) cache |
| CN103248720A (en) * | 2012-02-13 | 2013-08-14 | 中兴通讯股份有限公司 | Method and device for inquiring physical address |
| CN103414709A (en) * | 2013-08-02 | 2013-11-27 | 杭州华三通信技术有限公司 | User identity binding and user identity binding assisting method and device |
| CN110460687A (en) * | 2019-08-15 | 2019-11-15 | 深圳震有科技股份有限公司 | Recognition methods, device and the storage medium of a kind of IP address distribution port |
-
2020
- 2020-10-19 CN CN202011115181.4A patent/CN112261171A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101471966A (en) * | 2006-07-06 | 2009-07-01 | 华为技术有限公司 | Method for preventing IP address from leakage |
| CN103248720A (en) * | 2012-02-13 | 2013-08-14 | 中兴通讯股份有限公司 | Method and device for inquiring physical address |
| CN103118148A (en) * | 2013-01-31 | 2013-05-22 | 杭州华三通信技术有限公司 | Method and device for updating ARP (address resolution protocol) cache |
| CN103414709A (en) * | 2013-08-02 | 2013-11-27 | 杭州华三通信技术有限公司 | User identity binding and user identity binding assisting method and device |
| CN110460687A (en) * | 2019-08-15 | 2019-11-15 | 深圳震有科技股份有限公司 | Recognition methods, device and the storage medium of a kind of IP address distribution port |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113590213A (en) * | 2021-06-24 | 2021-11-02 | 深圳开源互联网安全技术有限公司 | Component maintenance method, electronic device, and storage medium |
| CN113590213B (en) * | 2021-06-24 | 2023-04-25 | 深圳开源互联网安全技术有限公司 | Component maintenance method, electronic device and storage medium |
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