JP2001148718A - Network address acquisition system - Google Patents

Network address acquisition system

Info

Publication number
JP2001148718A
JP2001148718A JP32982699A JP32982699A JP2001148718A JP 2001148718 A JP2001148718 A JP 2001148718A JP 32982699 A JP32982699 A JP 32982699A JP 32982699 A JP32982699 A JP 32982699A JP 2001148718 A JP2001148718 A JP 2001148718A
Authority
JP
Japan
Prior art keywords
address
terminal device
network
network address
distribution server
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP32982699A
Other languages
Japanese (ja)
Inventor
Kenji Hirabayashi
健二 平林
Original Assignee
Nitsuko Corp
日通工株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nitsuko Corp, 日通工株式会社 filed Critical Nitsuko Corp
Priority to JP32982699A priority Critical patent/JP2001148718A/en
Publication of JP2001148718A publication Critical patent/JP2001148718A/en
Application status is Pending legal-status Critical

Links

Abstract

PROBLEM TO BE SOLVED: To automatically assign a network address to a terminal device irrelevantly to whether or not a network administrator is present. SOLUTION: A distribution server 13 is installed in a computer network 11 and equipped with an address list 14 for managing unused network addresses and network addresses in use. To obtain a network address, a terminal device 12 accesses the distribution server by using DHCP to make an address request. Once the address request is received, the distribution server sends an unused network address as a free network address to the terminal device 12 by referring to the address list. The terminal device 12 sets address using this free network address.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system used for obtaining a network address for a terminal device connected to a computer network.

[0002]

2. Description of the Related Art Generally, when a terminal device is newly added (connected) to a computer network, a network interface controller (NIC) of the terminal device is used.
Need to set the network address.

[0003] Conventionally, a network administrator has used a network address in use (an address currently used) and an unused network address (an unused address).
When a new terminal device is added to the computer network, a network address is assigned in response to a request from the terminal user. That is, the network administrator assigns a network address to the NIC of the terminal device according to the request of the terminal user.

On the other hand, a computer network has a DHC
P (Dynamic Host Cofiguratio)
n Protocol) server, the network address is automatically assigned to the terminal device. Then, in this method, the assigned network address dynamically changes each time the terminal device accesses the computer network.

[0005]

By the way, the network administrator responds to the request of the terminal user by setting the NIC of the terminal device.
In the method of assigning a network address to a network, the network administrator needs to know the used network address and the unused network address accurately, and sometimes the network address may be assigned to the terminal device twice. There is. Furthermore, if a network administrator is not present, there is a problem that a network address cannot be set in the terminal device.

[0006] On the other hand, DHC is used in computer networks.
When a P server is installed, the network address is automatically assigned to the terminal device. However, as described above, the assigned address changes dynamically each time the terminal device accesses the computer network. Therefore, there is a problem that an application that needs to fix the assigned address cannot be operated.

An object of the present invention is to provide a network address acquisition method capable of accurately assigning a network address to a terminal device regardless of whether or not a network administrator is absent.

Another object of the present invention is to provide a network address acquisition system capable of automatically and fixedly assigning a network address to a terminal device.

[0009]

According to the present invention, a new terminal is used in a computer network to which a plurality of terminal devices are connected and when a new terminal device is connected to the computer network as a new terminal device. An address acquisition method for causing a device to acquire a network address, comprising an address list indicating whether a network address is unused or not, referring to the address list in response to an address request of the new terminal device, and using an unused network. There is provided a network address acquisition method, characterized in that a distribution server for providing an address to the new address as a free network address is provided, and the new terminal device sets the free network address.

[0010] More specifically, the distribution server has a DHCP function, the new terminal device accesses the distribution server using DHCP and makes the address request, and the distribution server responds to the address request. Then, the unused network address is sent from the address list to the new terminal device as the free address, and the new terminal device sets an address with the free network address.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings.

First, referring to FIG. 1, a plurality of terminal devices 12 (only one terminal device is shown in FIG. 1) are connected to a computer network 11 shown in FIG. A network address distribution server (hereinafter simply referred to as a distribution server) 13 is connected to the computer network. The distribution server 13 has an address list 14 in which unused addresses and used addresses are described. Specifically, as shown in FIG. 2, the address list 14 is described as text data, and an address and a description indicating unused are recorded in each line. Here, “used” is used during use, and “available” is used.
e ".

The distribution server 13 also has a DHCP function, and addresses used in DHCP are not described in the address list 13.

Referring to FIGS. 1 and 3, when a new terminal device 12 is connected to the computer network 11, the distribution server 13 is accessed using DHCP. That is, the terminal device 12 performs the DHCP setting,
After connecting to the distribution server 13 by DHCP, a request for an IP address is made (see FIG. 4A).

The distribution server 13 sends a DH
It monitors whether there is a CP connection request (step S
1) When there is a DHCP connection request, the address list 14 is searched according to the IP address request to check whether there is an unused address (step S2). When there is no unused address, the terminal device 12 is notified of this (step S3), and the distribution server 13 ends the process.

On the other hand, if there is an unused address, the distribution server 13 acquires this unused address as a free address (see FIG. 4B). And the distribution server 13
Sends an empty address to the terminal device 12 as an IP address (step S4: see FIG. 4C). afterwards,
The distribution server 13 updates the address list 14 by changing the unused address that has been sent to “in use” (Step S).
5), end the processing.

When the terminal device 12 receives the IP address, the terminal device 12 releases the DHCP setting and performs the setting using the IP address.

[0018]

As described above, according to the present invention, when a terminal device accesses a network address distribution server by DHCP, the network address distribution server gives an empty address to the terminal device by referring to the address list, and provides this empty address. Is used as a fixed address, regardless of whether a network administrator is absent or not, not only can a network address be accurately assigned to a terminal device, but also automatically and fixedly to a terminal device. There is an effect that a network address can be assigned.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of a computer network to which a network address acquisition method according to the present invention is applied.

FIG. 2 is a diagram showing contents of an address list shown in FIG. 1;

FIG. 3 is a flowchart for explaining the operation of the distribution server shown in FIG. 1;

4 is a diagram for explaining an example of address acquisition in the computer network shown in FIG.

[Explanation of symbols]

 11 Computer Network 12 Terminal Device 13 Distribution Server 14 Address List

Claims (2)

    [Claims]
  1. An address acquisition method for use in a computer network to which a plurality of terminal devices are connected, wherein the new terminal device acquires a network address when the terminal device is newly connected to the computer network as a new terminal device. Comprising an address list indicating whether or not a network address is unused, referring to the address list in response to an address request of the new terminal device, and setting an unused network address as a free network address to the new address. A new distribution server, and the new terminal device sets the free network address.
  2. 2. The network address acquisition method according to claim 1, wherein the distribution server has a DHCP function, and the new terminal device accesses the distribution server using DHCP to make the address request. ,
    The distribution server sends the unused network address from the address list as the free address to the new terminal device in response to the address request, and the new terminal device changes the address with the free network address. A network address acquisition method, characterized in that:
JP32982699A 1999-11-19 1999-11-19 Network address acquisition system Pending JP2001148718A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32982699A JP2001148718A (en) 1999-11-19 1999-11-19 Network address acquisition system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32982699A JP2001148718A (en) 1999-11-19 1999-11-19 Network address acquisition system

Publications (1)

Publication Number Publication Date
JP2001148718A true JP2001148718A (en) 2001-05-29

Family

ID=18225673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32982699A Pending JP2001148718A (en) 1999-11-19 1999-11-19 Network address acquisition system

Country Status (1)

Country Link
JP (1) JP2001148718A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101141490B (en) * 2007-08-03 2011-11-23 中兴通讯股份有限公司 Network element address obtaining method
US8265084B2 (en) 2005-01-13 2012-09-11 Nec Corporation Local network connecting system local network connecting method and mobile terminal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8265084B2 (en) 2005-01-13 2012-09-11 Nec Corporation Local network connecting system local network connecting method and mobile terminal
CN101141490B (en) * 2007-08-03 2011-11-23 中兴通讯股份有限公司 Network element address obtaining method

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