KR100248022B1 - Method of node detecting and network constructing with snmp protocol - Google Patents

Abstract

The present invention relates to a method for automatic discovery and automatic network configuration of nodes in a network using SNMP, and more particularly, to a network management method for automatic discovery and automatic configuration of a network access system equipped with an agent of Simple Network Management Protocol (SNMP). .

For the purposes of the present invention, a first step of accessing a local Internet protocol protocol (IP) address of a system, performed by network management system software, and accessing a registered router IP address by examining an address resolution table of the accessed IP address The second step of the process, the third step of creating a list of all registered network IP addresses by examining the address resolution table of the router IP address, the SNMP request to the terminal of the IP address list is automatically registered in the network And a fifth process of classifying and displaying a network class of an automatically configured network.

As described above, according to the present invention, a network can be automatically configured by using a commonly used SNMP protocol.

Description

Automatic discovery of network nodes and automatic network configuration using SNMP

1 is a flowchart of a method for automatic discovery and automatic network configuration of nodes in a network using SNMP according to the present invention.

The present invention relates to a method for automatic discovery and automatic network configuration of nodes in a network using SNMP, and more particularly, to a network management method for automatic discovery and automatic configuration of a network access system equipped with an agent of Simple Network Management Protocol (SNMP). .

Conventionally, the Rotating Exchange protocol is used to dynamically exchange information about in-network nodes (computers) or inaccessible in-network nodes as a method of managing information about in-network access systems and inaccessible systems. It also had to include the network layer of the Open System Interconection (OSI) protocol stack.

However, current trends of standardization and development of network network management systems are becoming more common with the use of the SNMP protocol, an application protocol provided for network management services in the Internet, rather than OSI. The network configuration in the network management system using SNMP was inconvenient to be manually created by a human being.

Therefore, an object of the present invention is to automatically discover each system operating in the network by using the management information defined in SNMP, the network management protocol, and to automatically discover and automatically detect nodes in the network using SNMP to improve the management of the network management system. It relates to a configuration method.

In order to achieve the object of the present invention, the present invention provides a network management method using SNMP, comprising: a first process performed by a network management system software and accessing a local internet protocol (IP) address of a system; A second step of accessing a registered router IP address by examining an address resolution table of the IP address accessed in the first step; A third step of inspecting an address resolution table of a router IP address in a second step of creating a list of all registered network IP addresses; A fourth step of automatically registering in the network when the SNMP request is made to the terminal of the IP address list in the third step; And a fifth process of classifying and displaying a network class automatically configured in the fourth process.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a flowchart of a method for automatic discovery and automatic network configuration of nodes in a network using SNMP according to the present invention.

Figure 1 shows the local IP address access process 110, the ARP table lookup process 120, the Router IP presence determination process 130, which is the computer on which the software is currently being executed, and the Luther ARP table. Investigation process 140, IP address list creation process 150, ARP table termination determination process 160, active node determination process 170, network classification and display process 180, IP address removal process It is made up of 190.

As shown in FIG. 1, in step 110, a local IP (Internet Protocol) address of a system currently running network management system software is accessed. Here, the host IP address is accessed in an asynchronous manner provided by the Window Socket library.

In step 120, the ARP (Address Resolution Protocol) table of the local IP address accessed is examined. ARP is an internet protocol used to match an IP address to an Ethernet address, and an IP address is a 32-bit address used to indicate a contact point on the internet.

In step 130, it is determined whether a router IP address registered in a router, which is a device that interconnects a plurality of communication networks, using a network relay function.

In step 140, if the router IP registered in step 130 exists, the ARP table of the router IP address is examined, and in step 150, all network IP address lists are prepared.

In step 160, it is determined whether the ARP table of the router IP address is the end. If it is not the end, the network IP address list is continuously created. Only systems that can send request packets and receive responses are automatically registered in the network in step 180. Automatically configured network diagrams are classified by network classes (A, B, and C) and represented as sub-network map icons to take a hierarchical structure.

If you double-click each sub-network map icon with a mouse or enter a specific key with the keyboard, the map pops up and a list of the nodes belonging to it is displayed in the form of an icon.

In addition, if there is no response by requesting an SNMP request to the node that is the access point of the terminal of the accessed IP address list, the IP address is removed in step 190.

As described above, according to the present invention, a network can be automatically configured by using a commonly used SNMP protocol.

Claims (3)

A network management method using SNMP, the method comprising: a first step performed by a network management system software to access a local internet protocol protocol (IP) address of a system; A second step of accessing a registered router IP address by examining an address resolution table of the IP address accessed in the first step; A third step of inspecting an address resolution table of a router IP address in a second step of creating a list of all registered network IP addresses; A fourth step of automatically registering in the network when the SNMP request is made to the terminal of the IP address list in the third step; And a fifth step of classifying and displaying a network class that is automatically configured in the fourth step. The method of claim 1, wherein the fifth process is classified by network class and displayed as a map icon of a subnetwork. The method of claim 2, wherein the map icon of the sub-network automatically inputs a specific key with a mouse or a keyboard, and a corresponding map is popped up. How to find and configure automatic networks.