JPH0528065A - Information processing system - Google Patents

Abstract

PURPOSE:To automatize the management and to reduce the labor and the time for management by automatically setting an internetwork address. CONSTITUTION:An internetwork address requesting means 1 broadcasts an internetwork address request packet at the time of starting of a machine. A management server 12 receives the packet, and an address is assigned by an internetwork address assigning means 3, and a response packet is returned. A client 11 receives the packet, and the address is assigned to the machine by an interset address setting means 2, thereby automatically assigning the internetwork address. Thus, the internetwork address is automatically managed to reduce the trouble for network setting.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is used for managing internet addresses. The present invention relates to an information processing system capable of automatically allocating an internet address without requiring humans to manage the internet address in a network environment using the internet address.

[0002]

2. Description of the Related Art Conventionally, is an internet address management method managed by the administrator of each machine by providing a table in the internet address management file on each machine in which all host computer names and addresses on the network are associated? Or, a machine that manages the Internet address is set on the network to centrally manage the Internet address, and another machine inquires the address of the machine that manages the Internet address. Both of these methods were manually managed by the machine administrator.

[0003]

In any of the above-mentioned conventional Internet address management methods, the management file of the Internet address is manually updated in any of the methods, and therefore, when the management file is erroneously updated (for example, another different host). Assigning the same address to the computer, etc.) may seriously interfere with the network,
In addition, there is a drawback in that the management file must be updated every time a machine is added because it is manually managed, which is a troublesome problem.

The present invention solves such a problem, and an object of the present invention is to provide a system capable of easily introducing a new machine by eliminating the artificial management of the internet address of each machine.

[0005]

According to the present invention, in an information processing system in which a plurality of clients are connected to a host computer, an internet address management server for managing internet addresses of the plurality of clients is provided, and each of the plurality of clients is provided. And an internet address setting means for inquiring the internet address management server about the internet address at startup, and an internet address setting means for receiving a response packet returned by the internet address management server and setting the internet address. The internet address management server is provided with an internet address / host name correspondence table that associates the internet address of each of the clients with the host computer name. An internet address assigning means for receiving an internet address request packet transmitted by the internet address requesting means of Ant, allocating an unused internet address by searching the internet address / host name correspondence table, and transmitting the response packet; A machine that sends packets at regular time intervals to monitor whether each of the clients is up and deletes the entry of the host computer from the internet address / host name correspondence table for the clients that do not respond. It is characterized by having a survival monitoring means.

The internet address requesting means preferably includes means for generating a packet for inquiring the internet address management server about the internet address.

[0007]

[Function] One internet address management server automatically manages internet addresses in the same network so that each client in the network does not have its own internet address fixedly on its own machine.
When the machine is started up, the Internet address management server is inquired about the address, and when the management server receives the inquiry, the address is assigned to each server.

As a result, the management of the internet address of each machine can be eliminated, and since it is not necessary for the administrator to consciously manage the internet address, a new machine can be easily introduced, and the internet can be easily introduced. It is possible to avoid the trouble of duplicate addresses.

[0009]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a block diagram showing the configuration of the embodiment of the present invention.

In the embodiment of the present invention, the host computer 10 is used.
A plurality of clients 11 are connected to each other, and an internet address management server 12 that manages the internet addresses of the plurality of clients 11 is provided, and each of the plurality of clients 11 inquires the internet address management server 12 about the internet address at startup. The internet address management server 12 includes a request means 1 and an internet address setting means 2 for receiving a response packet returned by the internet address management server 12 and setting an internet address. The internet address / host name correspondence table 4 for correlating the names is provided, and the internet address request means 1 of the client 11 transmits the internet address. Receiving a request packet, the Internet address of the Internet address that is not used
An internet address assigning means 3 for searching and assigning a host name correspondence table 4 and transmitting a response packet thereof,
In order to monitor whether or not each of the clients 11 has started up, a packet is transmitted at a constant time interval, and for the client 11 that does not respond, the entry of that host computer is deleted from the internet address / host name correspondence table 4. The machine address monitoring means 5 is provided, and the internet address requesting means 1 includes means for generating a packet for inquiring the internet address management server 12 about the internet address.

Next, the operation of the automatic internet address allocation in the embodiment of the present invention thus constructed will be described.

The client 11 using the internet address requests the internet address management server 12 to allocate the internet address by means of the internet address request means 1 when the machine starts up, and the internet address setting means 2 sets the internet address in its own machine. FIG. 2 is a flow chart showing the flow of processing from the internet address request to setting.

The internet address requesting means 1 generates a packet for inquiring the internet address management server 12 about the internet address of its own machine by the internet address request packet creation processing (step 21). Next, the Internet address request packet is broadcasted by the Internet address request packet transmission process (step 22). After that, it waits for the Internet address management server 12 to return a response.

The internet address setting means 2 receives the response packet transmitted by the internet address management server 12 by the internet address assignment response packet reception process, and extracts the assigned internet address of the own machine from the response packet by the internet address retrieval process. (Step 24) Then, an address is set in the own machine by the internet address setting process (step 25).

Next, the internet address management server 1
The process when 2 receives the internet address request packet will be described with reference to FIG. The internet address allocation means 3 receives the internet address allocation packet from the client 11 by the internet address request packet reception processing (step 3).
1). After that, in the free address search process, the Internet address / host name correspondence table 4 is searched to find an unused Internet address,
The internet address retrieved by the update processing of the host name correspondence table 4 is registered in the correspondence table (step 33). here,
Internet addresses are assigned in ascending order of numbers. After that, an internet address assignment response packet is created, and the response packet is returned to the client 11 which has made a request in the internet address assignment response packet return processing (step 34).

The machine survival monitoring means 5 monitors whether or not the client 11 managed by the internet address management server 12 is alive. That is, the existence confirmation packet is transmitted to each client 11 at a constant time interval, and the existence of the client 11 is confirmed by whether the client 11 responds to the packet.

When the client 11 does not respond, it is determined that the client 11 has been shut down, and the entry of the client 11 from the internet address / host name correspondence table 4 is deleted. This ensures that only the surviving machine has an entry in the internet address / host name correspondence table 4, so that the entry is automatically deleted when the machine is removed from the network.

[0018]

As described above, according to the present invention, it is possible to eliminate the management of the internet address of each machine, and it is not necessary for the administrator to consciously manage the internet address. Therefore, a new machine is introduced. Can be easily performed, and the trouble of duplicate internet addresses can be avoided.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is a flow chart showing a flow of processing from a request for an internet address of a client to setting in the embodiment of the present invention.

FIG. 3 is a flowchart showing a flow of a server internet address allocation process in the embodiment of the present invention.

[Explanation of symbols]

1 Internet address requesting means 2 Internet address setting means 3 Internet address allocation means 4 Internet address / host name correspondence table 5 Machine survival monitoring means 10 Host computer 11 clients 12 Internet address management server

Claims (2)

[Claims] 1. An information processing system in which a plurality of clients are connected to a host computer is provided with an internet address management server that manages internet addresses of the plurality of clients, and each of the plurality of clients is provided with an internet address at startup. The internet address management server comprises: an internet address requesting means for inquiring the internet address management server; and an internet address setting means for receiving a response packet returned by the internet address management server and setting an internet address. An internet address / host name correspondence table for associating each internet address with the host computer name is provided. An internet address assigning means for receiving the internet address request packet sent by the address requesting means, searching the internet address / host name correspondence table and assigning an unused internet address, and sending the response packet; Machine existence monitoring means for transmitting a packet at a fixed time interval to monitor whether each of them is up and deleting the entry of the host computer from the internet address / host name correspondence table for a client that does not respond An information processing system comprising: 2. The internet address requesting means,
The information processing system according to claim 1, further comprising means for generating a packet for inquiring of the internet address management server about an internet address.