Router security management system with active defense function

Abstract

The application discloses a router security management and control system with active defense function, and belongs to the technical field of network security management and control.The application adopts a layered architecture of a distributed routing gateway combined with a centralized management and control server to build a whole-network security management and control system with edge protection and center scheduling coordination.The edge device realizes network state collection and local active defense, and the management and control center is equipped with linkage scheduling, batch policy distribution, threat intelligence iteration and full-link audit function modules.The system is configured with four types of core calibration algorithms, which can accurately locate network risks, dynamically adapt to traffic fluctuations, unify the time efficiency of whole-network protection, eliminate device time sequence deviation, support one-key deployment of multi-scene protection templates, and have unknown threat autonomous iteration capability.The application realizes closed-loop management and control of pre-event reinforcement, in-event linkage defense, post-event iteration optimization and whole-process compliance audit, improves the whole-network collaborative defense precision and stability, and reduces operation and maintenance cost.

Description

Technical Field

[0001] The present invention relates to the technical field of network security equipment, and specifically relates to a router security management and control system with an active defense function. Background Art

[0002] With the continuous expansion of the networking scale of government and enterprise parks, industrial control scenarios and home broadband, distributed routing gateways have become core infrastructure for intranet data forwarding, terminal access, and external network interconnection. At the current stage, the traditional routing network security management and control system generally adopts a passive defense and decentralized operation and maintenance mode, which can only record and dispose of network attacks, device vulnerabilities and abnormal access behaviors that have occurred after the fact, cannot realize preposed and intelligent risk prediction and active prevention and control, and has weak overall security protection capability.

[0003] The existing related technologies have obvious technical defects: traditional routing devices operate independently, lack a unified nationwide network linkage management and control mechanism, and cannot synchronize risk warnings to all network devices in time when a single routing device is attacked, which is very likely to cause lateral penetration and diffusion in the intranet, and further cause major safety accidents such as network-wide paralysis, service interruption and data leakage. At the same time, traditional network operation and maintenance is highly dependent on manual operations, making it difficult to implement batch security hardening of devices across the entire network, and there are long-term normalized security hazards in the network such as weak passwords, open high-risk ports, unrepaired vulnerable firmware, and disordered intranet networking. In addition, the traditional protection strategy adopts fixed threshold configuration, which cannot adapt to the dynamically fluctuating network traffic environment, is prone to problems of false interception of normal services and missed interception of abnormal traffic, and does not have the ability to independently iteratively identify unknown threats, making it difficult to cope with continuously iterating new types of network attacks, with poor protection accuracy and adaptability, and cannot meet the compliant operation and maintenance requirements of the current network security level protection.

[0004] In view of the technical shortcomings existing in the above-mentioned prior art, the present invention proposes a router security management and control system with active defense function, which constructs an integrated management and control system of edge active protection, intelligent algorithm calibration, network-wide linkage defense, automated operation and maintenance, and full-link compliance audit, so as to effectively solve various defects of traditional routing network security management and control. Contents of the Invention

[0005] The purpose of the present invention is to solve the technical problems of the existing router management and control system, such as passive defense mode, isolated devices without linkage, cumbersome manual operation and maintenance, low protection accuracy, and no independent threat iteration capability, and provide a router security management and control system with active defense function. The present invention combines a layered protection architecture with a multi-dimensional intelligent calibration algorithm to realize active risk prediction, dynamic policy adaptation, precise security risk control, intelligent and efficient operation and maintenance, and full-process compliance audit of the entire network, and significantly improves the overall security protection level of distributed routing networking.

[0006] The technical solution adopted by this invention is as follows: The router security management system with active defense function proposed in this solution includes multiple distributed routing gateway devices and a centralized management server; the distributed routing gateway devices are deployed at the network edge access nodes and are responsible for full-domain data collection, local security protection, policy implementation, internal network terminal management and risk data reporting; the centralized management server is deployed at the core management terminal and is responsible for the overall scheduling of network data, intelligent algorithm calculation, batch distribution of security policies, threat intelligence updates and full-link compliance auditing.

[0007] The distributed routing gateway device is configured with an edge active defense execution engine, a device status acquisition unit, and a two-way linkage communication unit; the centralized management server is equipped with a global security management hub module, which integrates an active defense linkage scheduling engine, a network-wide policy batch distribution unit, a threat intelligence aggregation and update unit, and a full-link security audit unit.

[0008] The bidirectional communication unit is used to build an encrypted dedicated communication channel between edge devices and the control center, enabling real-time bidirectional data interaction between the two ends. Uplink transmission includes device operating status, network traffic data, and risk alarm information, while downlink push includes security policies, threat signature databases, firmware upgrade instructions, and access control rules.

[0009] The edge active defense execution engine is used to complete local network traffic parsing, device security self-check, internal network terminal compliance management and abnormal traffic interception. It can independently complete local basic security protection work without the central management device, ensuring the security of edge nodes under extreme network conditions.

[0010] The proactive defense linkage scheduling engine is used to collect and receive data and risk logs from edge devices across the entire network, and complete risk assessment and dynamic analysis through built-in intelligent algorithms. It adaptively adjusts the network-wide protection strategy to achieve linkage defense across all devices.

[0011] The batch distribution unit for network-wide policies has built-in multi-scenario protection baseline templates, which can support one-click completion of policy configuration and security hardening for all network routing devices, adapting to the differentiated protection needs of different networking scenarios.

[0012] The threat intelligence aggregation and update unit is used to collect samples of unknown attack traffic from the entire network, and completes autonomous iterative updates of protection features through intelligent analysis, continuously optimizing the system's ability to identify and intercept new threats.

[0013] The full-link security audit unit is used to record the entire network operation and maintenance, equipment operation logs, traffic forwarding data and risk alarm records, so as to realize the full-process traceability, auditability and verification of all operations and protection behaviors.

[0014] Furthermore, the edge proactive defense execution engine includes a device self-security detection unit, an intranet terminal proactive management unit, a boundary traffic IPS protection unit, and a route hijacking protection unit. The device self-security detection unit periodically inspects the firmware, open ports, and administrator account security status of routing devices, automatically identifying and fixing device system vulnerabilities and basic security risks. The intranet terminal proactive management unit regulates intranet terminal access behavior, blocking unauthorized terminal access and abnormal intranet access. The boundary traffic IPS protection unit performs deep filtering of external network boundary traffic and intercepts malicious attacks. The route hijacking protection unit verifies the legality of routing protocol messages in real time, preventing network attacks such as route tampering and route hijacking. Furthermore, the device status acquisition unit includes a load sensing acquisition subunit, a link latency acquisition subunit, and an environmental traffic sensing subunit, which are used to collect real-time data on device operating load, network-wide link transmission latency, and network traffic spatiotemporal data, providing complete and real-time data support for accurate calculations by backend intelligent algorithms.

[0015] Furthermore, the proactive defense linkage scheduling engine incorporates a network-wide risk offset calibration algorithm, a full-link timing delay calibration algorithm, a traffic baseline adaptive matching algorithm, and an attack source full-domain synchronous blocking algorithm, which are used to achieve intelligent assessment of network-wide risks, dynamic calibration of protection parameters, and full-domain collaborative risk control optimization.

[0016] The network-wide risk offset calibration algorithm is used to accurately locate network attack sources, calculate the risk spread range, and identify high-risk protection areas.

[0017]

[0018] In the formula, This represents the overall network risk offset of the attack source. The coordinates of the three-dimensional network segment of the gateway where the attack source is located. It serves as a coordinate system for predicting global risks, accurately pinpointing the scope of risk spread and high-risk areas through quantified offset values.

[0019] Furthermore, the end-to-end timing delay calibration algorithm is used to optimize the timeliness of network-wide collaborative defense and unify device response latency:

[0020]

[0021] In the formula, To ensure overall network-wide collaborative defense against latency, For the time consumed by data collection from edge devices, The algorithm computation time of the control center To reduce the time required for policy distribution and device execution, end-to-end calibration is used to achieve efficient millisecond-level protection across the entire network.

[0022] Furthermore, the traffic baseline adaptive matching algorithm is used to dynamically adapt to network traffic fluctuations and optimize the accuracy of protection thresholds.

[0023]

[0024] In the formula, To provide real-time dynamic defense and interception thresholds, Set a baseline defense threshold for the system. Real-time traffic load of the network segment It sets the standard steady-state traffic threshold for network segments and improves the accuracy of protection in complex traffic scenarios through a dynamic threshold adaptive mechanism.

[0025] Furthermore, the attack source global synchronous blocking algorithm is used to eliminate device timing deviations and achieve synchronous execution of network-wide policies:

[0026]

[0027] In the formula, To distribute synchronization parameters for a unified strategy across the entire network, For local gateway threat reporting timing parameters, To provide cross-device timing synchronization compensation values, completely eliminating protection gaps caused by equipment runtime differences.

[0028] Furthermore, the global security control hub module is configured with a device partitioning isolation control unit, which is used to divide independent business network segments and device management network segments to achieve logical network segment isolation and effectively avoid the risks of internal network penetration and cross-network segment attacks.

[0029] Furthermore, the system is configured with a hierarchical alarm linkage module, which can match the corresponding alarm push method according to the network risk level, quickly warn of security risks, and assist operation and maintenance personnel in efficiently completing emergency response.

[0030] Furthermore, the batch distribution unit for the whole network policy has built-in three types of scenario-based protection templates: park office, industrial control, and home broadband, which are adapted to different networking environments and support one-click deployment and synchronous adaptation across the whole network.

[0031] Furthermore, the threat intelligence aggregation and update unit automatically updates the protection feature library through a closed-loop mechanism of unknown sample backhaul, sandbox intelligent analysis, and feature iterative upgrade, thereby continuously improving the system's ability to defend against new threats.

[0032] Furthermore, the end-to-end security audit unit is configured with a three-tiered access control system, distinguishing the operational permissions of ordinary maintenance personnel, security administrators, and super administrators to achieve refined access control and ensure operational compliance.

[0033] The beneficial effects achieved by the present invention using the above structure are as follows:

[0034] 1. Construct a two-layer protection system of proactive edge protection and intelligent central scheduling to achieve network-wide perception of single-point risks, second-level early warning, and millisecond-level interception, thereby eliminating the risk of lateral spread of internal network attacks from the root and completely changing the traditional passive handling protection mode;

[0035] 2. Built-in standardized protection templates for three types: park office, industrial control, and home broadband, which can be quickly adapted to different networking environments, support one-click switching of scenarios, and have strong versatility and practicality;

[0036] 3. Relying on four types of core calibration algorithms, it achieves comprehensive dynamic optimization of risk location, link latency, protection threshold, and device timing, effectively solving the problems of false blocking, missed blocking, and delayed response of traditional fixed strategies, and greatly improving the accuracy and stability of protection.

[0037] 4. Supports batch security hardening of all network devices, policy synchronization and updates, intelligent inspection, and unified log aggregation, significantly reducing manual intervention, lowering operation and maintenance costs, and improving network management efficiency;

[0038] 5. It has the ability to automatically collect, intelligently analyze, and iterate on the characteristics of unknown attack samples, and can continuously adapt to new network attack methods to achieve long-term upgrades of protection capabilities. Attached Figure Description

[0039] Figure 1 This is a block diagram of the overall system layered architecture of the present invention;

[0040] Figure 2 This is a schematic diagram of the edge active defense execution engine unit structure of the present invention;

[0041] Figure 3 This is a flowchart of the linkage process of the active defense linkage scheduling engine algorithm of the present invention;

[0042] Figure 4 This is a flowchart of the closed-loop process of the whole-network collaborative active defense of the present invention. Detailed Implementation

[0043] The technical solution of this invention will be clearly and completely described in detail below with reference to the accompanying drawings, data tables, core algorithm formulas, and actual engineering conditions. This embodiment is mainly based on the deployment of a distributed routing network in a park, while also being compatible with industrial intranets and home broadband networking environments, and can be directly implemented. The embodiments listed in this invention are only used to illustrate the technical concept of this invention and are not intended to limit the scope of protection of this invention.

[0044] System overall architecture deployment and implementation, such as Figure 1 As shown:

[0045] This invention adopts a four-layer hierarchical linkage architecture, consisting of a central control layer, a data transmission layer, an edge device layer, and an audit application layer, from top to bottom. Each layer has independent functions and deep linkage to build a closed-loop security control system of "edge active protection + central intelligent scheduling + full-process compliance audit". The architecture comprises a central control layer with an independent centralized control server, equipped with a global security control hub module. This server is responsible for unified network-wide algorithm calculations, risk assessment, batch policy distribution, threat intelligence iteration, and log aggregation and auditing. The data transmission layer relies on the bidirectional communication units built into the distributed routing gateway devices to establish encrypted dedicated transmission channels. This ensures the uplink reporting of device status data, traffic logs, and risk alarms, as well as the downlink synchronization of defense strategies, signature databases, and firmware instructions. Data transmission is encrypted, tamper-proof, and hijacked throughout the entire process. The edge device layer consists of multiple distributed routing gateways, widely deployed at access nodes across various network segments. These gateways perform front-end tasks such as real-time data collection, local security protection, terminal access control, and abnormal traffic interception. The audit application layer integrates hierarchical alarms, three-level access control, full log retention, and compliance traceability, enabling auditable, traceable, and controllable network-wide operational activities. This architecture breaks away from the traditional isolated operation of routing devices, achieving single-point risk awareness, network-wide perception, and coordinated response, significantly improving the overall network security defense capabilities.

[0046] Implementation of multi-dimensional data collection from edge devices:

[0047] This invention achieves multi-dimensional, refined data collection across the entire network through a device status acquisition unit, providing complete, real-time, and reliable data support for backend core algorithm computation, dynamic strategy calibration, and accurate risk assessment. The device status acquisition unit comprises three sub-units: a load sensing acquisition sub-unit, a link delay acquisition sub-unit, and an environmental traffic sensing sub-unit. These three sub-units continuously and synchronously collect network-wide operating parameters 24 / 7. The parameters collected by each unit, the corresponding algorithms, and their engineering protection functions are shown in the table below:

[0048]

[0049] The implementation of edge active defense engines, such as Figure 2 As shown:

[0050] As the core front-end protection carrier, the edge active defense execution engine is the basic execution unit for achieving active defense. It integrates four functional units: device self-security detection, internal network terminal active management and control, boundary traffic IPS protection, and route hijacking protection. It can independently complete local basic protection without the central management layer, ensuring the security of edge nodes under extreme conditions such as network outages and high latency. The device's self-security detection unit periodically and automatically inspects the router's firmware version, system vulnerabilities, management port open status, and administrator account password strength. It automatically identifies security risks such as weak passwords, high-risk open ports, and unpatched vulnerabilities, performs one-click local hardening, and simultaneously uploads risk logs to the control center. The internal network terminal proactive management unit relies on the MAC blacklist / whitelist access mechanism to verify the legitimacy of incoming terminals in real time, blocking unauthorized router connections, illegal hotspots, and access from unfamiliar terminals. It also monitors abnormal packet sending, port scanning, and high-frequency external connections from internal network terminals to regulate internal network access order. The boundary traffic IPS protection unit, based on a real-time updated threat intelligence feature database, performs in-depth analysis of incoming and outgoing network packets to accurately identify and block malicious traffic such as port scanning, brute-force attacks, DDoS attacks, penetration testing, and malicious external connections. The route hijacking protection unit verifies the legitimacy of OSPF, BGP, and other routing protocol packets in real time, proactively identifies fake routes and abnormal route entries, and prevents attacks such as route tampering, route hijacking, and traffic hijacking, ensuring the stability and reliability of the entire network's routing forwarding logic.

[0051] Core algorithm linkage calibration implementation, such as Figure 3 As shown:

[0052] The proactive defense linkage scheduling engine is equipped with four core calibration algorithms. Based on real-time operational data collected from the edge, it performs dynamic calculations, adapts to network traffic fluctuations, link latency differences, and changes in risk points, and dynamically corrects the protection strategy. This solves the problems of false blocking, missed blocking, delayed linkage, and inaccurate protection scope of traditional fixed strategies. The specific implementation process is as follows:

[0053] Network-wide risk offset calibration algorithm

[0054] This algorithm is used to accurately locate the source of an attack, quantify the scope of risk spread, distinguish between local single-point risks and network-wide spread risks, and achieve targeted and precise protection, avoiding the waste of resources caused by indiscriminate network-wide protection. The algorithm formula is as follows:

[0055]

[0056] In the formula, This represents the overall network risk offset of the attack source. The coordinates of the three-dimensional network segment of the gateway where the attack source is located, as detected in real time; This refers to the global threat propagation prediction coordinates fitted by the system based on time-series traffic characteristics. During actual operation, the system performs 3D modeling and calibration of the entire network segment space. When abnormal attack traffic is detected, the system extracts the attack point coordinates and risk prediction coordinates in real time, and calculates the risk offset. .when When the risk is limited to this network segment, protection strategies and interception rules are strengthened only for devices on this network segment; when When a risk is determined to have a horizontal spread trend, a network-wide linkage protection mechanism is automatically triggered, and interception and isolation policies are simultaneously issued to adjacent network segments and core business network segments to accurately block the risk spread path.

[0057] End-to-end timing delay calibration algorithm:

[0058] This algorithm is used to comprehensively optimize the latency of the entire process, from data collection and algorithm computation to policy distribution and device execution. It unifies the response time of all network devices, solves the problems of inconsistent runtime sequences and large differences in linkage latency among distributed devices, and ensures millisecond-level collaborative defense across the entire network. The algorithm formula is as follows:

[0059]

[0060] In the formula, Total latency for network-wide collaborative defense; Data acquisition time for edge devices; The algorithm computation time of the control center; This includes the time consumed by policy distribution and device execution forwarding. The system monitors the time consumption parameters of each stage in real time, dynamically optimizes task scheduling logic, reduces invalid waiting latency, and through continuous closed-loop calibration and optimization, can reduce the total latency of network-wide collaborative defense. Stable control within 100ms enables second-level risk perception and millisecond-level interception, completely resolving the shortcomings of traditional control systems such as delayed response and misaligned protection.

[0061] Traffic baseline adaptive matching algorithm:

[0062] This algorithm is designed to adapt to complex operating conditions such as peak network hours, sudden fluctuations in business traffic, and instantaneous surges in traffic. It dynamically adjusts the abnormal traffic interception threshold, balancing the stability of normal business operations with the accuracy of malicious attack interception. The algorithm formula is as follows:

[0063]

[0064] In the formula, Real-time dynamic defense interception threshold; The preset baseline defense threshold for the system; Real-time traffic load of the network segment; This refers to the standard steady-state traffic threshold for the network segment. In actual operation, when the network segment's service traffic is at its peak... Greater than At that time, the system will automatically and appropriately increase the interception threshold. To avoid the mistaken blocking of normal business traffic surges and sudden traffic spikes, ensuring the continuous and stable operation of services; when network segment business traffic is at a low point, Less than At that time, the system automatically tightens the interception threshold. This enhances the ability to identify and intercept minor abnormal traffic, low-frequency scanning, and slow penetration attacks, effectively solving the problem of "false blocking during peak hours and missed blocking during off-peak hours" caused by traditional fixed thresholds.

[0065] Attack source global synchronous blocking algorithm:

[0066] This algorithm eliminates discrepancies in reporting timing and execution delays caused by differences in deployment location and operating load among distributed routing devices, ensuring synchronized policy execution across all devices in the network and completely eliminating protection gaps. The algorithm formula is as follows:

[0067]

[0068] In the formula, To distribute synchronized parameters for a unified strategy across the entire network; Threat reporting timing parameters for a single local gateway; This is a dynamic timing synchronization compensation value for a single device. The system continuously analyzes the timing differences of each routing device and dynamically generates a unique compensation value. Correct single device timing parameters Ultimately, this generates unified synchronization execution parameters across the entire network. This ensures that all distributed routing devices synchronously complete operations such as blocking attack source IPs, intercepting malicious traffic, and isolating risky network segments, achieving seamless, closed-loop collaborative protection across the entire network.

[0069] The entire network closed-loop protection process is implemented, such as... Figure 4 As shown:

[0070] This invention constructs a closed-loop protection system covering the entire lifecycle, including pre-emptive baseline reinforcement, in-process algorithm-linked defense, post-event threat iterative optimization, and full-process auditing and tracing. It relies on the above four types of core algorithms to operate in conjunction throughout the process, achieving automated, intelligent, and precise security management. In the pre-attack hardening phase, the system matches scenario-based protection templates for parks, industries, and broadband networks with a single click based on the network topology, batches security baseline policies, and completes vulnerability patching, high-risk port blocking, and terminal access rule configuration for all network devices, thus mitigating basic security risks at the source. In the in-attack defense phase, edge devices collect real-time network operation data and perform initial risk interception using a local engine. Simultaneously, complete risk data is uploaded to the management and control center. The scheduling engine uses four core algorithms to perform risk location, latency calibration, threshold adaptation, and time synchronization, dynamically generating precise defense policies and distributing them synchronously across the network, achieving millisecond-level collaborative interception and handling. In the post-attack iteration phase, the threat intelligence aggregation and update unit automatically collects samples of the unknown attack, extracts new threat characteristics through in-depth sandbox analysis, iteratively updates the network protection feature library, and synchronizes devices, continuously optimizing the system's defense capabilities to adapt to constantly evolving new network attacks. In the end-to-end audit phase, the end-to-end security audit unit records device operation data, algorithm scheduling logs, policy change records, attack interception records, and personnel operation records throughout the process. Relying on a three-level permission system, it achieves refined compliance management, and all logs are retained long-term, traceable, and verifiable.

[0071] The system's supporting management and control functions have been implemented:

[0072] This invention features network segment isolation, tiered alarms, tiered access control, and full log auditing functions, comprehensively ensuring the secure, compliant, and stable operation of the network. The device partitioning and isolation control unit can divide the entire network into independent business terminal segments and device management segments, achieving logical isolation through customized VLAN isolation policies. This prevents abnormal traffic from devices and malicious traffic from the external network from penetrating into internal network business terminals, improving the internal network security level from the network topology perspective. The tiered alarm linkage module can push platform pop-ups, SMS notifications, and local audio-visual alarms according to the attack severity level and risk spread range, accurately locating risky devices, risky network segments, and attack types, assisting maintenance personnel in quickly completing emergency response. The full-link security auditing unit divides permissions into three levels: ordinary maintenance, security administrator, and super administrator, strictly distinguishing between viewing, editing, configuring, and deleting operation permissions to prevent unauthorized operations. Simultaneously, it fully retains all maintenance and defense logs, fully meeting the network security level protection compliance audit requirements. This system is adaptable to various distributed routing network scenarios, is simple to deploy, highly automated, provides precise protection, and has strong iteration capabilities, possessing engineering practicality and market promotion value.

[0073] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, material, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, material, or apparatus.

[0074] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A router security management system with proactive defense capabilities, comprising multiple distributed routing gateway devices and a centralized management server, characterized in that: The distributed routing gateway device is configured with an edge active defense execution engine, a device status acquisition unit, and a two-way linkage communication unit; the centralized management server deploys a global security management hub module, which integrates an active defense linkage scheduling engine, a network-wide policy batch distribution unit, a threat intelligence aggregation and update unit, and a full-link security audit unit. The two-way linkage communication unit establishes a data interaction channel between the distributed routing gateway device and the global security management and control center module. The distributed routing gateway device uploads raw data on network traffic, device vulnerabilities, network attacks, and terminal violations to the global security management and control center module, while receiving network-wide defense baselines, temporary blocking policies, threat signature databases, and device firmware upgrade instructions issued by the global security management and control center module. The edge proactive defense execution engine parses and processes various local network packets, completes real-time network interception operations, and simultaneously uploads threat events, device location offsets, link transmission delays and related data to the global security management and control central module. The proactive defense linkage scheduling engine aggregates threat data uploaded by all distributed routing gateway devices, calculates the spread of network attacks and security risk levels, generates defense strategies adapted to the entire network, and distributes them in batches to each distributed routing gateway device, forming a complete security defense link that combines local interception with centralized unified prevention and control. The network-wide policy batch distribution unit uniformly configures network-wide proactive defense rules and judgment thresholds, and pushes them in batches to all distributed routing gateway devices to complete synchronous security hardening of all network devices; The threat intelligence aggregation and update unit integrates various malicious network identifiers to form a unified intelligence database, which is periodically synchronized to the edge active defense execution engine configured on each distributed routing gateway device, and directly intercepts malicious traffic based on local intelligence. The end-to-end security audit unit aggregates all interception records, device operation records, traffic forwarding records, and policy change records generated by all distributed routing gateway devices, retaining complete and traceable data.

2. The router security management system with active defense function according to claim 1, characterized in that: The edge proactive defense execution engine includes a device self-security detection unit, an intranet terminal proactive management and control unit, a border traffic IPS protection unit, and a route hijacking protection unit; The device's self-security detection unit continuously scans the distributed routing gateway device for weak access passwords, plaintext management ports, high-risk external network mapping ports, and old firmware with security vulnerabilities. After identifying security risks, it locally closes the risky ports and reports the risk information to the global security control center module. The intranet terminal active management and control unit is equipped with illegal secondary routing identification logic, MAC address blacklist / whitelist verification logic, and port isolation control logic. After identifying unauthorized terminals and abnormal traffic, it cuts off the terminal network connection and reports the violation record. The Boundary Traffic IPS Protection Unit relies on the synchronously distributed threat intelligence database to identify port scanning, brute-force login, malicious external connections, and internal network penetration attack traffic, and performs actions such as dropping attack packets and blocking attack source addresses; The route hijacking protection unit verifies the legitimacy of BGP and OSPF route update messages, discards false route entries, and defends against network attacks such as route hijacking and traffic hijacking.

3. The router security management system with active defense function according to claim 1, characterized in that: The device status acquisition unit of the distributed routing gateway device includes a load sensing acquisition subunit, a link delay acquisition subunit, and an environmental traffic sensing subunit. The load sensing and acquisition subunit collects real-time data on the processor usage, memory usage, port uplink traffic, port downlink traffic, and the number of online terminals on the intranet from the distributed routing gateway device. The link delay acquisition subunit collects signal acquisition time, engine calculation time, and message forwarding time, generates single-device link delay parameters, and uploads them to the proactive defense linkage scheduling engine. The environmental traffic sensing subunit collects the network segment's regular traffic model and the time sequence characteristics of normal user access, and transmits them to the proactive defense linkage scheduling engine to establish a benchmark for normal access behavior across the entire network.

4. The router security management system with active defense function according to claim 1, characterized in that: The proactive defense linkage scheduling engine is configured with a network-wide risk offset calibration algorithm, a full-link timing delay calibration algorithm, a traffic baseline adaptive matching algorithm, and an attack source full-domain synchronous blocking algorithm; The calculation formula for the network-wide risk offset calibration algorithm configuration is as follows: In the formula This represents the overall risk offset of the attack source across the entire network. This represents the three-dimensional network segment coordinates corresponding to the gateway where the attack source is located. Represents the global threat propagation prediction coordinates; the proactive defense linkage scheduling engine calculates the offset value using a formula, controlling the overall risk offset within a certain range. Network segment range, locking down the attack spread boundary; The calculation formula for the end-to-end timing delay calibration algorithm configuration is as follows: In the formula This represents the total delay time of coordinated control and defense. This represents the time taken for signal acquisition by the distributed routing gateway device. This represents the computation time of the proactive defense linkage scheduling engine. The representative strategy's message forwarding time; the proactive defense linkage scheduling engine adjusts the operating parameters of each link to control the total latency of the entire network's collaborative defense within a specified timeframe. This enables rapid linkage between local interception and synchronized prevention and control across the entire network; Traffic baseline adaptive matching algorithm configuration calculation formula: In the formula Represents the real-time defense interception threshold. This represents the system's preset baseline defense threshold. Represents the real-time traffic load of the network segment. The system sets standard traffic thresholds; the proactive defense linkage scheduling engine adjusts the defense and interception thresholds of individual devices based on real-time traffic data of each network segment to adapt to traffic fluctuations. Calculation formula for attack source global synchronous blocking algorithm configuration: In the formula This represents the global policy's distribution of synchronization parameters. This represents the timing parameters for threat reporting to the local gateway. This represents the cross-device synchronization compensation and correction value; the proactive defense linkage scheduling engine compensates for synchronization deviations based on the timing data reported by each gateway, ensuring that all distributed routing gateway devices synchronously issue blocking policies.

5. The router security management system with active defense function according to claim 1, characterized in that: The global security control central module also includes a device partitioning isolation control unit; The device partitioning and isolation management unit divides the overall network topology into service terminal operating areas and routing device working areas, and issues partitioning and isolation VLAN policies to each distributed routing gateway device; Distributed routing gateway devices separate service terminal network segments from device management network segments based on VLAN policies, isolate probe traffic and malicious external connection traffic generated by routing devices, reduce the risk of service terminals being intruded, and complete the security isolation and protection of the two areas.

6. The router security management system with active defense function according to claim 1, characterized in that: The system also includes a tiered alarm linkage module, which is electrically connected to the global security control center module. The tiered alarm linkage module pushes three types of tiered prompts—audio-visual alarms, SMS notifications, and platform pop-ups—to different risk points across the entire network. This enables the linkage and matching of risk points, defense and interception events, and routing device topology locations, thereby shortening the risk response time for maintenance personnel.

7. The router security management system with active defense function according to claim 2, characterized in that: The whole network policy batch distribution unit is equipped with three types of switchable active defense baseline configuration templates: the campus intranet baseline template, the carrier broadband baseline template, and the industrial intranet isolation baseline template. The park's intranet baseline template includes built-in rules for blocking unauthorized routes, controlling terminal internet access behavior, and blocking malicious network domains. The operator's broadband baseline template includes built-in rules for mandatory repair of weak router passwords, rules for blocking external network scanning, and rules for controlling access to home terminals. The industrial intranet isolation baseline template includes built-in industrial control port isolation rules, external network access blocking rules, and routing protocol whitelist verification rules. The whole network policy batch distribution unit selects the corresponding template based on the on-site network scenario and distributes it in batches to all distributed routing gateway devices.

8. The router security management system with active defense function according to claim 1, characterized in that: The threat intelligence aggregation and update unit is configured with an unknown threat sample feedback subunit and an automatic feature iteration subunit. The unknown threat sample feedback subunit receives unknown abnormal messages and new attack traffic samples captured by each distributed routing gateway device and uploads them to the sandbox analysis module mounted on the global security management and control central module. The feature automatic iteration subunit generates an incremental intelligence database based on the new attack features output by the sandbox analysis module, and pushes it synchronously to the edge active defense execution engine configured on all distributed routing gateway devices to continuously update the system's defense identification capabilities.

9. The router security management system with active defense function according to claim 1, characterized in that: The end-to-end security audit unit has a built-in hierarchical access control subunit; The hierarchical access control subunit is divided into three categories of operation permissions: ordinary operation and maintenance read-only permission, security administrator policy editing permission, and super administrator global disposal permission. Regular maintenance permissions only allow viewing alarm information and device operating status; security administrator permissions allow editing defense rules and issuing network-wide blocking commands; and super administrator permissions allow device firmware upgrades and exporting audit logs. The system fully records policy modifications, address blocking, and batch blacklisting of corresponding operators, operation times, and operation content, retaining complete records for easy post-event verification and traceability.

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