JPH0561801A - Network address management server - Google Patents

Abstract

(57) [Summary] [Purpose] To be able to automatically create an unused network address. [Structure] The message receiving function 3 outputs the message source network address and the message content when the destination of the message from the network line is the user.
The received message determination function 15 analyzes the content of the message, and if it determines that this message is an inquiry about an unused network address, it issues an instruction to generate an unused network address. The unused network address generation function 13 is the network address list file 12
A network address not registered in is created and newly registered in the network address list file 12.
The message transmission function 4 is a transmission message content generation function 1
A broadcast message including the generated network address designated by 4, the broadcast network address, and its own network address is created and transmitted to the network line 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to network operation and management, and more particularly to a network address management server.

[0002]

2. Description of the Related Art A computer connected to a network must be assigned a unique network address within the network. In the past, the address allocation was left to the network operator / administrator.

[0003]

Since the above-mentioned conventional network address allocation is performed by a human,
There was a problem that errors were likely to occur and the burden of allocation work was heavy.

[0004]

According to a first aspect of the present invention, a network address management server receives a message from a network line and outputs a source network address and a message content of the message when the destination network address of the message is oneself. A message receiving function for performing, a received message determining function for instructing generation of an unused network address when the message content is analyzed and it is determined that the message is an inquiry for an unused network address, and a network address list file provided in advance And an unused network address generation function for generating a network address not registered in the network address list file and newly registering it in the network address list file. As a message content, a transmission message content generation function for designating the generated network address and broadcast network address, and a broadcast message including the generated network address, broadcast network address, and own network address are created. And a message sending function for sending the message to the network line.

[0005]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a network address management server of the present invention, FIG. 2 is a general block diagram of a computer connected to a network, and FIG. 3 is an example of the composition of a message on a network line. FIG.

Referring to FIG. 2, the computer 1 has a message receiving function 3, a message transmitting function 4 and an information processing function 5, and is connected to a network line 2. A plurality of computers having the same block configuration as the computer 1 are connected to the network line 2, and each computer is given a uniquely determined network address for identification. When the computer 1 needs to send and receive information to and from another computer, it uses the message receiving function 3 and the message sending function 4 to send and receive the message 6 in the format shown in FIG. As the destination network address 7, a network address of a computer that is uniquely determined to receive the message 6 or a broadcast network address indicating that the message 6 is transmitted to all the computers in the network is set. The source network address 8 is a network address uniquely given to the computer transmitting the message 6. When the message receiving function 3 receives the message 6 from the network line 2, when it determines that the message is from the destination network address 7 to itself or is a broadcast message, it sends the sender network address 8 and the message content 9 to the information processing function 5. To do. The message transmission function 4 is activated by the information processing function 5 by designating the destination network address 7 and the message content 9, and creates a message 6 by using the designated destination network address 7, the message content 9 and the own network address to create a network line. Send to 2.

Next, FIG. 1 shows the configuration of the network address management server of the present invention. The message receiving function 3 of the network address management server 10 receives the message shown in FIG. When it is determined that the destination network address 7 points to the own network address management server 10, the source network address 8 of the message 6
And the message content 9 are transmitted to the received message determination function 15. The received message judgment function 15 analyzes the message content 9, and if it judges that the message is an inquiry about an unused network address, it instructs the unused network address generation function 13 to generate an unused network address. The unused network address generation function 13 refers to the network address list file 12 in the external storage device 11, generates a network address not registered in the network address list file 12, and newly registers it in the network address list file 12. To do.

The newly generated network address is hereinafter referred to as A1. Next, the unused network address generation function 13 sends A1 and the message content generation function 14
Then, the transmission message content generation function 14 activates the message transmission function 4 by designating the broadcast network address together with the message content 9 instructing to use A1. The message transmission function 4 includes a message content 9 instructing to use A1, a broadcast network address, and the network address management server 10.
Based on the network address uniquely assigned to
Create a broadcast message and send it to the network. The broadcast message is received by all computers including the computer that has transmitted the inquiry message for the unused network address.

[0010]

As described above, according to the present invention, since the unused network address can be automatically created, the burden on the operator can be reduced and the error-free allocation can be performed. Has the effect of

[Brief description of drawings]

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

FIG. 2 is a general block diagram of a computer connected to a network.

FIG. 3 is a diagram showing a configuration example of a message on a network line.

[Explanation of symbols]

 1 Computer 2 Network Line 3 Message Reception Function 4 Message Transmission Function 5 Information Processing Function 6 Message 7 Destination Network Address 8 Source Network Address 9 Message Content 10 Network Address Management Server 11 External Storage Device 12 Network Address List File 13 Unused Network Address Generation function 14 Transmission message content generation function 15 Reception message judgment function

Claims (1)

[Claims] 1. A network address management server, a message receiving function for receiving a message from a network line and outputting a source network address and a message content of the message when the destination network address of the message is oneself, and the message content If the message is analyzed and it is determined that the message is an inquiry about an unused network address, a received message determination function for instructing generation of an unused network address and a network address list file provided in advance are referred to An unused network address generation function for generating an unregistered network address and newly registering it in the network address list file, and the generation as the transmission message content. A transmission message content generation function for designating a network address and a broadcast network address, and a broadcast message containing the generated network address, broadcast network address, and own network address is created and transmitted to the network line. A network address management server comprising a message sending function for