JP2000112851A - Dynamic domain name system and dynamic domain name management method - Google Patents
Dynamic domain name system and dynamic domain name management methodInfo
- Publication number
- JP2000112851A JP2000112851A JP28789898A JP28789898A JP2000112851A JP 2000112851 A JP2000112851 A JP 2000112851A JP 28789898 A JP28789898 A JP 28789898A JP 28789898 A JP28789898 A JP 28789898A JP 2000112851 A JP2000112851 A JP 2000112851A
- Authority
- JP
- Japan
- Prior art keywords
- address
- terminal
- server
- host name
- dhcp
- 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.)
- Granted
Links
Landscapes
- Computer And Data Communications (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Small-Scale Networks (AREA)
Abstract
(57)【要約】
【課題】 ＤＨＣＰサーバとＤＮＳサーバとを連携さ
せ，ＤＨＣＰによるＩＰアドレスの動的割当てによりア
ドレスリソースの有効利用を図り，かつＤＮＳを用いた
ホストネームによる端末間アクセスを可能にする。
【解決手段】 ＤＨＣＰサーバ３は，端末1-1 からアド
レス割当て要求を受けると，プールしているＩＰアドレ
ス群から一つを選択して割り当て，通知処理部32により
割り当てたＩＰアドレスとＭＡＣアドレスの対応をＤＮ
Ｓサーバ４に通知する。ＤＮＳサーバ４は，通知情報に
基づいて，設定・更新処理部42によりＭＡＣアドレスか
ら該当する端末1-1 に対するホストネームとＩＰアドレ
スとの対応情報をＤＮＳテーブル41に設定する。その
後，端末1-2 から端末1-1 のＩＰアドレスの問い合わせ
があると，ＤＮＳテーブル41により，端末1-1 のホスト
ネームに対応するＩＰアドレスを回答する。
(57) [Summary] [Problem] To make effective use of address resources by dynamically assigning an IP address by DHCP by linking a DHCP server and a DNS server, and to enable access between terminals by a host name using DNS. I do. When an address assignment request is received from a terminal 1-1, a DHCP server 3 selects and assigns one from a pooled IP address group, and assigns an IP address and a MAC address assigned by a notification processing unit 32. Correspondence is DN
Notify the S server 4. The DNS server 4 sets the correspondence information between the host name and the IP address for the corresponding terminal 1-1 from the MAC address in the DNS table 41 by the setting / update processing unit 42 based on the notification information. Thereafter, when the terminal 1-2 inquires about the IP address of the terminal 1-1, the IP address corresponding to the host name of the terminal 1-1 is returned from the DNS table 41.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は，ＩＰ（Internet P
rotocol ）アドレスで管理されるＬＡＮにおいてＤＨＣ
Ｐ（Dynamic Host Configuration Protocol ）サーバと
ＤＮＳ（Domain Name System）サーバとを連携させるこ
とにより，ＤＨＣＰによるＩＰアドレスの動的割当てを
行いつつ，かつＤＮＳを用いたホストネームによる端末
間アクセスを可能にするダイナミック・ドメイン・ネー
ム・システムおよびダイナミック・ドメイン・ネーム管
理方法に関するものである。[0001] The present invention relates to an IP (Internet P
rotocol) in a LAN managed by an address
By linking a P (Dynamic Host Configuration Protocol) server with a DNS (Domain Name System) server, it is possible to dynamically assign IP addresses by DHCP and to enable terminal-to-terminal access using a host name using DNS. The present invention relates to a dynamic domain name system and a dynamic domain name management method.
【０００２】[0002]
【従来の技術】これまで，イーサネット等でコンピュー
タ端末の通信を行うネットワーク（ＬＡＮ）では，通常
ＩＰ（Internet Protocol ）通信が用いられるため，各
端末にはホストアドレスとしてＩＰアドレスが割り付け
られている。このときのＩＰアドレスとしては世界的に
ユニークなアドレス（グローバルＩＰアドレス），ある
いはローカルに使用可能なアドレス（プライベートＩＰ
アドレス）が用いられるが，近年，グローバルＩＰアド
レスの不足から，特に外部のネットワークと接続しない
閉域ネットワークあるいは実験用ネットワークでは，そ
のネットワークで独立管理できるプライベートＩＰアド
レスが用いられている。2. Description of the Related Art Conventionally, in a network (LAN) for communicating computer terminals by Ethernet or the like, since IP (Internet Protocol) communication is usually used, an IP address is assigned to each terminal as a host address. At this time, the IP address is a globally unique address (global IP address) or a locally usable address (private IP address).
In recent years, a private IP address that can be independently managed in the closed network or an experimental network that is not connected to an external network has been used due to a shortage of global IP addresses.
【０００３】ＩＰアドレスの設定方法として，ユーザに
よるＩＰアドレス設定の負荷の軽減やＩＰアドレスの有
効利用あるいはアドレス管理の容易性から，ＤＨＣＰ
（Dynamic Host Configuration Protocol ）によるＩＰ
アドレス割当てが広く用いられている。これはＤＨＣＰ
で予め複数のＩＰアドレスをプールしておき，端末は立
ち上げ時にＤＨＣＰサーバに対して自端末のＩＰアドレ
スを問い合わせ，ＤＨＣＰサーバはこれに対して，ＩＰ
アドレス群の中から一つのＩＰアドレスを選択して，端
末に割り当てる方式である。この方式では，動作中の端
末にのみＩＰアドレスを割り付けるため，アドレスリソ
ースの有効利用が可能であり，またサーバでアドレスを
一括管理するため，ユーザの設定ミスやアドレス重複が
発生しにくい等の利点がある。[0003] As a method of setting an IP address, DHCP is used in order to reduce the load of setting an IP address by a user, to effectively use an IP address, or to easily manage an address.
(Dynamic Host Configuration Protocol) IP
Address assignment is widely used. This is DHCP
Pools a plurality of IP addresses in advance, and the terminal queries the DHCP server for its own IP address at the time of startup, and the DHCP server
In this method, one IP address is selected from an address group and assigned to a terminal. In this method, IP addresses are assigned only to active terminals, so that address resources can be used effectively. In addition, since addresses are collectively managed by the server, user setting errors and address duplication are less likely to occur. There is.
【０００４】一方，ＩＰ通信ではＩＰアドレスを参照し
て通信を行うが，覚えにくくタイプミスを誘いやすい数
字入力を避けるため，各端末のホストアドレス（ＩＰア
ドレス）の代わりにホストネームを用いて通信を行うた
めのＤＮＳ（Domain Name System）が広く用いられてい
る。これはＤＮＳサーバがホストアドレスとホストネー
ムの対応付けを管理し，端末が通信を行うときにはこの
ＤＮＳサーバにアクセスすることによりホストネームか
らホストアドレスを得る仕組みである。On the other hand, in IP communication, communication is performed by referring to an IP address. However, in order to avoid entering numbers that are difficult to remember and cause typographical errors, communication is performed using a host name instead of the host address (IP address) of each terminal. (Domain Name System) is widely used. This is a mechanism in which a DNS server manages correspondence between a host address and a host name, and when a terminal performs communication, the terminal accesses this DNS server to obtain a host address from the host name.
【０００５】図３は，従来技術によるシステムの構成例
を示す。図３中，５１−１〜５１−ｎは端末（コンピュ
ータ端末），５２はＬＡＮ，５３はホストアドレス（Ｉ
Ｐアドレス）を動的に割り当てるＤＨＣＰサーバ，５４
はホストアドレスとホストネームの対応付けを管理する
ＤＮＳサーバである。図３に示す従来例では，ＤＮＳサ
ーバ５４とＤＨＣＰサーバ５３とを分離した構成で記載
しているが，これらを同一サーバ（ワークステーショ
ン）上にインプリメントし，動作させることも可能であ
る。FIG. 3 shows a configuration example of a system according to the prior art. 3, 51-1 to 51-n are terminals (computer terminals), 52 is a LAN, 53 is a host address (I
DHCP server for dynamically assigning P address), 54
Is a DNS server that manages the correspondence between host addresses and host names. In the conventional example shown in FIG. 3, the DNS server 54 and the DHCP server 53 are described as being separated from each other, but they can be implemented and operated on the same server (workstation).
【０００６】以下に，従来例における動作について説明
する。例えば，ＤＨＣＰサーバ５３においてＩＰアドレ
スをＩＰ−１〜ＩＰ−ｍまでプールしておき，端末５１
−１に対するホストアドレスとしてＩＰ−１，端末５１
−２に対するホストアドレスとしてＩＰ−２を割り当て
るとする。また，端末５１−１にはホストネームa1.are
a-a.jp，端末５１−２にはホストネームa2.area-a.jpが
設定され，ＤＮＳサーバ５４にホストアドレスとの対応
が登録されているとする。The operation of the conventional example will be described below. For example, in the DHCP server 53, IP addresses are pooled from IP-1 to IP-m, and the terminal 51
-1 as the host address for -1 and terminal 51
It is assumed that IP-2 is assigned as the host address for IP-2. The terminal 51-1 has the host name a1.are
It is assumed that the host name a2.area-a.jp is set in aa.jp and the terminal 51-2, and the correspondence with the host address is registered in the DNS server 54.
【０００７】ここで，端末５１−１から端末５１−２に
対して通信を行う場合に，端末５１−１は，端末５１−
２のホストネームa2.area-a.jpをキーとしてＤＮＳサー
バ５４に問い合わせる。この問い合わせに対して，ＤＮ
Ｓサーバ５４は，端末５１−２のホストアドレスＩＰ−
２を端末５１−１に回答する。その結果，端末５１−１
は，端末５１−２の宛先ＩＰアドレス（ＩＰ−２）を知
ることができ，これを用いてＩＰ通信が可能となる。Here, when communication is performed from the terminal 51-1 to the terminal 51-2, the terminal 51-1 is connected to the terminal 51-1.
Inquire the DNS server 54 using the host name a2.area-a.jp of the second as a key. In response to this inquiry, DN
The S server 54 receives the host address IP-
2 is returned to the terminal 51-1. As a result, the terminal 51-1
Can know the destination IP address (IP-2) of the terminal 51-2, and use this to enable IP communication.
【０００８】この他に，イーサネットアドレス解決の処
理（ＡＲＰ：Address Resolution Protocol ）等が行わ
れるが，本発明と直接関係しないため説明は省略する。[0008] In addition, processing of Ethernet address resolution (ARP: Address Resolution Protocol) is performed, but the description is omitted because it is not directly related to the present invention.
【０００９】[0009]
【発明が解決しようとする課題】以上のように，従来の
システムでは，ＤＨＣＰサーバ５３とＤＮＳサーバ５４
が独立しており，独自に端末情報の管理を行っているた
め，両者を併せて利用することは困難であった。すなわ
ち，ＤＮＳサーバ５４では固定的にホストネームとホス
トアドレス（ＩＰアドレス）とを対応づけているため，
ＤＨＣＰサーバ５３でＩＰアドレスを変化させると通信
ができなくなるという問題があった。As described above, in the conventional system, the DHCP server 53 and the DNS server 54
Is independent and independently manages terminal information, so it was difficult to use both together. That is, the DNS server 54 fixedly associates a host name with a host address (IP address).
If the IP address is changed in the DHCP server 53, communication becomes impossible.
【００１０】そのため，ＤＨＣＰサーバ５３を適用する
ためには端末のＩＰアドレスの割当てを常に一定にする
必要があり，ＤＨＣＰのメリットであるアドレスリソー
スの有効利用が図れないという制限があった。[0010] Therefore, in order to apply the DHCP server 53, it is necessary to constantly assign the IP address of the terminal, and there is a limitation that effective use of address resources, which is a merit of DHCP, cannot be achieved.
【００１１】本発明の目的は，ＤＨＣＰサーバとＤＮＳ
サーバとを連携させることにより，ＤＨＣＰによるＩＰ
アドレスの動的割当てによりアドレスリソースの有効利
用を図りつつ，かつＤＮＳを用いたホストネームによる
端末間アクセスを可能にするダイナミック・ドメイン・
ネーム・システムおよびダイナミック・ドメイン・ネー
ム管理方法を実現することにある。An object of the present invention is to provide a DHCP server and a DNS server.
By linking with server, IP by DHCP
A dynamic domain domain that enables effective use of address resources by dynamic address allocation and enables access between terminals by using a host name using DNS.
It is to implement a name system and a dynamic domain name management method.
【００１２】[0012]
【課題を解決するための手段】本発明は，ＩＰアドレス
体系で管理される複数の端末と，複数のＩＰアドレス群
の中から一つのＩＰアドレスを適応的に端末に割り当て
るＤＨＣＰ（DynamicHost Configuration Protocol ）
サーバと，ＩＰアドレスとホストネームとの対応付けを
行うＤＮＳ（Domain Name System）サーバとからなるＬ
ＡＮにおいて，端末のＭＡＣ（Media Access Control）
アドレスとホストネームとを固定的に対応付け，該ＭＡ
ＣアドレスデータをＤＨＣＰサーバとＤＮＳサーバとで
共有し，ＤＨＣＰサーバは割り当てた端末のＩＰアドレ
スと該端末のＭＡＣアドレスとの対応をＤＮＳサーバに
通知し，ＤＮＳサーバでは通知情報に基づいて該端末の
ＩＰアドレスとホストネームとを対応付けることを主要
な特徴とする。According to the present invention, there are provided a plurality of terminals managed by an IP address system and a DHCP (Dynamic Host Configuration Protocol) which adaptively assigns one IP address from a plurality of IP address groups to the terminals.
L consisting of a server and a DNS (Domain Name System) server that associates an IP address with a host name
In AN, terminal MAC (Media Access Control)
The address and the host name are fixedly associated with each other.
The C address data is shared between the DHCP server and the DNS server, and the DHCP server notifies the DNS server of the correspondence between the assigned IP address of the terminal and the MAC address of the terminal, and the DNS server notifies the terminal of the terminal based on the notification information. The main feature is to associate an IP address with a host name.
【００１３】より具体的には，以下のとおりである。 (1) ＤＨＣＰサーバは，ＭＡＣアドレスおよびＩＰアド
レス（群）を管理する第１のテーブルを有する。ただ
し，ＭＡＣアドレスとＩＰアドレスの組合せは，端末か
らの要求に応じてダイナミックに設定可能である。 (2) ＤＮＳサーバは，ホストネームとＭＡＣアドレスと
ＩＰアドレスとを対応させ，ホストネームとＭＡＣアド
レスを固定的に管理する第２のテーブルを有する。 (3) ＤＨＣＰサーバは，前記端末からＩＰアドレス要求
を受けると，該端末のＭＡＣアドレスとＩＰアドレスを
１組にしてＤＮＳサーバに通知する。 (4) ＤＮＳサーバは，第１のテーブルのＭＡＣアドレス
をキーとして，該端末のホストネームを知り，ホストネ
ームとＩＰアドレスの対応を設定あるいは更新する。 (5) 別の端末からのＩＰアドレス要求があった場合に
は，上記(3) と上記(4) によりホストネームとＩＰアド
レスの対応を設定あるいは更新する。 (6) ＤＮＳサーバは，ホストネームとＩＰアドレスの対
応表（第１のテーブル）を有するので，端末間のＩＰ通
信が可能になる。More specifically, it is as follows. (1) The DHCP server has a first table for managing a MAC address and an IP address (group). However, the combination of the MAC address and the IP address can be dynamically set according to a request from the terminal. (2) The DNS server has a second table in which the host name, the MAC address, and the IP address are associated with each other, and the host name and the MAC address are fixedly managed. (3) Upon receiving the IP address request from the terminal, the DHCP server notifies the DNS server of a set of the MAC address and the IP address of the terminal. (4) Using the MAC address in the first table as a key, the DNS server knows the host name of the terminal and sets or updates the correspondence between the host name and the IP address. (5) When an IP address is requested from another terminal, the correspondence between the host name and the IP address is set or updated according to (3) and (4). (6) Since the DNS server has a correspondence table (first table) between the host name and the IP address, IP communication between terminals becomes possible.
【００１４】また，本発明のダイナミック・ドメイン・
ネーム管理方法は，以下の過程を有する。 (1) 第１の端末からＤＨＣＰ要求があると，ＤＨＣＰサ
ーバはＩＰアドレスを第１の端末に送信すると同時に該
端末のＭＡＣアドレスとＩＰアドレスの組をＤＮＳサー
バに通知する。 (2) その通知情報に基づいてＤＮＳサーバでＭＡＣアド
レスをキーに，ホストネームとＩＰアドレスを対応づけ
て管理する。 (3) 同様に，第２の端末からＤＨＣＰ要求があると，Ｄ
ＨＣＰサーバはＩＰアドレスを第１の端末に送信すると
同時に該端末のＭＡＣアドレスとＩＰアドレスの組をＤ
ＮＳサーバに通知する。 (4) その通知情報に基づいてＤＮＳサーバでＭＡＣアド
レスをキーに，ホストネームとＩＰアドレスを対応づけ
て管理する。 (5) 第１または第２の端末からＤＮＳサーバにホストネ
ームが通知された場合，ホストネームをキーとしてＩＰ
アドレスを通知する。Further, the dynamic domain of the present invention
The name management method has the following steps. (1) Upon receiving a DHCP request from the first terminal, the DHCP server transmits the IP address to the first terminal and, at the same time, notifies the DNS server of the set of the MAC address and the IP address of the terminal. (2) On the basis of the notification information, the DNS server manages the host name and the IP address in association with the MAC address as a key. (3) Similarly, if there is a DHCP request from the second terminal, D
The HCP server transmits the IP address to the first terminal, and at the same time, sets the pair of the MAC address and the IP address of the terminal to D.
Notify the NS server. (4) Based on the notification information, the DNS server manages the host name and the IP address in association with the MAC address as a key. (5) When the host name is notified from the first or second terminal to the DNS server, the IP address is set using the host name as a key.
Advertise the address.
【００１５】従来の技術とは，端末のＭＡＣアドレスと
ホストネームとを固定的に対応付け，該対応データをＤ
ＨＣＰサーバとＤＮＳサーバとで共有し，ＤＨＣＰサー
バは割り当てた端末のＩＰアドレスと該端末のＭＡＣア
ドレスとの対応をＤＮＳサーバに通知し，ＤＮＳサーバ
では通知情報に基づいて該端末のＩＰアドレスとホスト
ネームとを対応付ける点が異なっている。[0015] The conventional technique is that a MAC address of a terminal is fixedly associated with a host name, and the corresponding data is stored in a D.
Shared by the HCP server and the DNS server, the DHCP server notifies the DNS server of the correspondence between the assigned IP address of the terminal and the MAC address of the terminal, and the DNS server notifies the IP address and host of the terminal based on the notification information. They differ in that they are associated with names.
【００１６】[0016]
【発明の実施の形態】以下，本発明の実施の形態を図を
用いて説明する。図１は，本発明の実施の形態に係るシ
ステムの構成例を示す。図１中，１−１〜１−ｎは端末
（コンピュータ端末），２はＬＡＮ，３はホストアドレ
ス（ＩＰアドレス）を動的に割り当てるＤＨＣＰサー
バ，４はホストアドレスとホストネームの対応付けを管
理するＤＮＳサーバである。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration example of a system according to an embodiment of the present invention. In FIG. 1, 1-1 to 1-n are terminals (computer terminals), 2 is a LAN, 3 is a DHCP server that dynamically allocates a host address (IP address), and 4 is a management of correspondence between host addresses and host names. DNS server.
【００１７】本システムでは，従来例とは異なり，ＤＮ
Ｓサーバ４およびＤＨＣＰサーバ３の両者において，端
末１−１〜１−ｎのＭＡＣアドレスデータを含むテーブ
ルを有する構成となっている。In this system, unlike the conventional example, the DN
Each of the S server 4 and the DHCP server 3 has a configuration including a table including the MAC address data of the terminals 1-1 to 1-n.
【００１８】ＤＨＣＰサーバ３は，ＭＡＣアドレスとＩ
Ｐアドレスの組合せが端末１−１〜１−ｎからの要求に
応じてダイナミックに設定可能であるＭＡＣアドレスお
よびＩＰアドレス（群）を管理するＤＨＣＰテーブル３
１と，端末１−１〜１−ｎからＩＰアドレス要求を受け
ると，要求元の端末のＭＡＣアドレスと割り当てられた
ＩＰアドレスとを１組にした割当て情報をＤＮＳサーバ
４に通知する通知処理部３２を持つ。The DHCP server 3 sends the MAC address and I
DHCP table 3 for managing MAC addresses and IP addresses (groups) in which combinations of P addresses can be dynamically set in response to requests from terminals 1-1 to 1-n
1 and a notification processing unit that, when receiving an IP address request from the terminals 1-1 to 1-n, notifies the DNS server 4 of allocation information in which the MAC address of the requesting terminal and the allocated IP address are paired. It has 32.
【００１９】ＤＮＳサーバ４は，ホストネームとＭＡＣ
アドレスを固定的に管理し，ホストネームとＭＡＣアド
レスとＩＰアドレスと対応させる情報を保持するＤＮＳ
テーブル４１と，ＤＨＣＰサーバ３から，端末のＭＡＣ
アドレスおよび割り当てられたＩＰアドレスを１組とす
る割当て情報を受けると，通知された端末のＭＡＣアド
レスをキーとして，その端末のホストネームを知り，Ｄ
ＮＳテーブル４１のホストネームとＩＰアドレスの対応
を設定あるいは更新する設定・更新処理部４２を持つ。The DNS server 4 has a host name and a MAC.
DNS that manages addresses in a fixed manner and holds information for associating host names, MAC addresses, and IP addresses
From the table 41 and the DHCP server 3, the MAC of the terminal
When receiving the assignment information including the address and the assigned IP address as a set, the host name of the notified terminal is known by using the notified MAC address as a key, and D
It has a setting / update processing unit 42 for setting or updating the correspondence between the host name and the IP address in the NS table 41.
【００２０】以下に，図１に示すシステムの動作の詳細
を説明する。例えば，端末１−１のＭＡＣアドレスをＭ
ＡＣ−１，端末１−２のＭＡＣアドレスをＭＡＣ−２と
する。このとき，ホストネームは固定的に割り付けるこ
ととする。ＤＮＳサーバ４では，端末１−１のホストネ
ームはa1.area-a.jp，端末１−２のホストネームはa2.a
rea-a.jpと設定し，各々の端末のＭＡＣアドレスとの対
応関係をＤＮＳテーブル４１に保持する。Hereinafter, the operation of the system shown in FIG. 1 will be described in detail. For example, if the MAC address of the terminal 1-1 is M
The MAC address of AC-1, terminal 1-2 is MAC-2. At this time, the host name is fixedly assigned. In the DNS server 4, the host name of the terminal 1-1 is a1.area-a.jp, and the host name of the terminal 1-2 is a2.a.
rea-a.jp is set, and the correspondence with the MAC address of each terminal is stored in the DNS table 41.
【００２１】一方，ＤＨＣＰサーバ３では端末１−１〜
１−ｎのＭＡＣアドレス情報を同様にＤＨＣＰテーブル
３１に保持しておく。ＤＨＣＰサーバ３は，端末１−１
からアドレス割当て要求を受けると，プールしているＩ
Ｐアドレス群の中から一つを選択して割り当て，同時に
割り当てたＩＰアドレスとＭＡＣアドレスの対応を，通
知処理部３２によりＤＮＳサーバ４に通知する。例え
ば，ＤＨＣＰサーバ３が端末１−１にＩＰアドレスとし
てＩＰ−１を割り当てると，通知処理部３２は，ＤＮＳ
サーバ４に「ＭＡＣ−１，ＩＰ−１」を通知する。On the other hand, in the DHCP server 3, the terminals 1-1 to 1-1
The 1-n MAC address information is similarly stored in the DHCP table 31. The DHCP server 3 is connected to the terminal 1-1.
Receives an address assignment request from the
One of the P address groups is selected and assigned, and the correspondence between the simultaneously assigned IP address and MAC address is notified to the DNS server 4 by the notification processing unit 32. For example, when the DHCP server 3 assigns IP-1 as an IP address to the terminal 1-1, the notification processing unit 32
The server 4 is notified of “MAC-1, IP-1”.
【００２２】ＤＮＳサーバ４では，設定・更新処理部４
２により，通知情報に基づいて，ＭＡＣアドレスから該
当の端末１−１に対するホストネームとＩＰアドレスの
対応をＤＮＳテーブル４１に設定する。In the DNS server 4, the setting / update processing unit 4
2, the correspondence between the host name and the IP address for the corresponding terminal 1-1 is set in the DNS table 41 from the MAC address based on the notification information.
【００２３】図２は，本発明の動作シーケンスの例を示
す図であり，端末１−１から端末１−２に対する通信開
始の場合のシーケンス例を示している。FIG. 2 is a diagram showing an example of an operation sequence according to the present invention, and shows an example of a sequence in a case where communication from the terminal 1-1 to the terminal 1-2 is started.
【００２４】端末１−１が立ち上げ時にＤＨＣＰサーバ
３に対して自端末のＩＰアドレス割当て要求を送信し，
ＤＨＣＰサーバ３はこれに対して，プールされているＩ
Ｐアドレス群の中から一つ（ＩＰ−１）を回答する。Ｄ
ＨＣＰサーバ３は，ＤＨＣＰテーブル３１を更新し，端
末１−１のＭＡＣアドレス（ＭＡＣ−１）と割当てＩＰ
アドレス（ＩＰ−１）との対応データ（割当て情報）を
ＤＮＳサーバ４に通知する。ＤＮＳサーバ４では，通知
された割当て情報に基づいてＭＡＣアドレス情報から端
末１−１のホストネームa1.area-a.jpに対するＩＰアド
レス（ＩＰ−１）をＤＮＳテーブル４１に設定・更新す
る。The terminal 1-1 transmits its own IP address assignment request to the DHCP server 3 when starting up,
The DHCP server 3 responds to the request by the pooled I
One (IP-1) is answered from the group of P addresses. D
The HCP server 3 updates the DHCP table 31 and updates the MAC address (MAC-1) of the terminal 1-1 and the assigned IP address.
The DNS server 4 is notified of data (assignment information) corresponding to the address (IP-1). The DNS server 4 sets and updates the IP address (IP-1) for the host name a1.area-a.jp of the terminal 1-1 in the DNS table 41 from the MAC address information based on the notified assignment information.
【００２５】次に，端末１−２が立ち上げ時にＤＨＣＰ
サーバ３に対して自端末のＩＰアドレス割当て要求を送
信し，ＤＨＣＰサーバ３はこれに対して，プールされて
いるＩＰアドレス群の中から一つ（ＩＰ−２）を回答す
る。ＤＨＣＰサーバ３は，ＤＨＣＰテーブル３１を更新
し，端末１−２のＭＡＣアドレス（ＭＡＣ−２）と割当
てＩＰアドレス（ＩＰ−２）との対応データ（割当て情
報）をＤＮＳサーバ４に通知する。ＤＮＳサーバ４で
は，通知された割当て情報に基づいてＭＡＣアドレス情
報から端末１−２のホストネームa2.area-a.jpに対する
ＩＰアドレス（ＩＰ−２）をＤＮＳテーブル４１に設定
し更新する。Next, when the terminal 1-2 starts up, the DHCP
The DHCP server 3 transmits an IP address assignment request of its own terminal to the server 3, and replies to the request with one (IP-2) from the pooled IP address group. The DHCP server 3 updates the DHCP table 31 and notifies the DNS server 4 of data (assignment information) corresponding to the MAC address (MAC-2) of the terminal 1-2 and the assigned IP address (IP-2). The DNS server 4 sets and updates the IP address (IP-2) for the host name a2.area-a.jp of the terminal 1-2 from the MAC address information in the DNS table 41 based on the notified assignment information.
【００２６】端末１−１では，端末１−２に対してＩＰ
通信を行うために，ＤＮＳサーバ４に対して端末１−２
のホストネームa2.area-a.jpに対するＩＰアドレスを問
い合わせる。これに対してＤＮＳサーバ４は，「ＩＰ−
２」を回答する。以下，端末１−１は，端末１−２のＩ
Ｐアドレスを知り得たので，通常のＡＲＰ(Address Res
olution Protocol）処理，すなわち，ＩＰアドレスから
ＭＡＣアドレスを取得する処理により端末１−２のＭＡ
Ｃアドレスを取得し，以降は直接，端末１−２との通信
が可能となる。The terminal 1-1 receives an IP address from the terminal 1-2.
To perform communication, the terminal 1-2 is sent to the DNS server 4.
Inquire about the IP address for the host name a2.area-a.jp. On the other hand, the DNS server 4 responds with “IP-
Answer "2". Hereinafter, the terminal 1-1 is the I-terminal of the terminal 1-2.
Since the P address was obtained, the normal ARP (Address Res
solution protocol), that is, a process of obtaining a MAC address from an IP address.
After acquiring the C address, communication with the terminal 1-2 can be directly performed thereafter.
【００２７】なお，ＤＨＣＰサーバ３におけるアドレス
割当て時間（リリース時間）に合せて，ＤＮＳサーバ４
のＤＮＳテーブル４１の対応データも更新することが望
ましい。これについては，ＤＨＣＰサーバ３からのリリ
ース時間終了時あるいは再割当て時にＤＮＳサーバ４に
通知し，対応データを更新することにより同期を確保す
ることが可能である。It should be noted that, in accordance with the address allocation time (release time) in the DHCP server 3, the DNS server 4
It is desirable that the corresponding data of the DNS table 41 be updated. This can be ensured by notifying the DNS server 4 at the end of the release time from the DHCP server 3 or at the time of reallocation, and updating the corresponding data to ensure synchronization.
【００２８】[0028]
【発明の効果】以上説明したように，本発明によればＤ
ＨＣＰサーバとＤＮＳサーバとを連携させることによ
り，ＤＨＣＰによるＩＰアドレスの動的割当てによるア
ドレスリソースの有効利用を図りつつ，かつＤＮＳを用
いたホストネームによる端末間アクセスを実現すること
が可能となる。As described above, according to the present invention, D
By linking the HCP server and the DNS server, it is possible to achieve effective use of address resources by dynamically allocating IP addresses by DHCP, and to realize terminal-to-terminal access using a host name using DNS.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明の実施の形態に係るシステムの構成例を
示す図である。FIG. 1 is a diagram showing a configuration example of a system according to an embodiment of the present invention.
【図２】本発明の実施の形態に係る動作シーケンスの例
を示す図である。FIG. 2 is a diagram showing an example of an operation sequence according to the embodiment of the present invention.
【図３】従来技術によるシステムの構成例を示す図であ
る。FIG. 3 is a diagram showing a configuration example of a system according to the related art.
１−１〜１−ｎ 端末 ２ ＬＡＮ ３ ＤＨＣＰサーバ ３１ ＤＨＣＰテーブル ３２ 通知処理部 ４ ＤＮＳサーバ ４１ ＤＮＳテーブル ４２ 設定・更新処理部 1-1 to 1-n Terminal 2 LAN 3 DHCP server 31 DHCP table 32 Notification processing unit 4 DNS server 41 DNS table 42 Setting / update processing unit
Claims (2)
末と，複数のＩＰアドレス群の中から一つのアドレスを
適応的に端末に割り当てるＤＨＣＰサーバと，ＩＰアド
レスとホストネームとの対応付けを行うＤＮＳサーバと
からなるネットワークにおけるダイナミック・ドメイン
・ネーム・システムにおいて，前記ＤＨＣＰサーバは，
ＭＡＣアドレスおよびＩＰアドレスを管理するテーブル
であって，ＭＡＣアドレスとＩＰアドレスの組合せを，
端末からの要求に応じてダイナミックに設定可能である
第１のテーブルと，前記端末からＩＰアドレス要求を受
けると，該端末のＭＡＣアドレスと該端末に割り当てた
ＩＰアドレスとを１組にして前記第１のテーブルに設定
するとともに，前記ＤＮＳサーバに通知する手段とを備
え，前記ＤＮＳサーバは，ホストネームとＭＡＣアドレ
スとを固定的に管理し，ホストネームとＭＡＣアドレス
とＩＰアドレスとを対応させた情報を保持する第２のテ
ーブルと，前記ＤＨＣＰサーバから，前記端末のＭＡＣ
アドレスとＩＰアドレスとを１組とする通知を受ける
と，前記第２のテーブルのＭＡＣアドレスをキーとし
て，当該端末のホストネームを知り，ホストネームとＩ
Ｐアドレスの対応を設定あるいは更新する手段とを備え
ることを特徴とするダイナミック・ドメイン・ネーム・
システム。1. A plurality of terminals managed by an IP address system, a DHCP server that adaptively assigns one address from a plurality of IP address groups to the terminals, and a correspondence between an IP address and a host name. In a dynamic domain name system in a network comprising a DNS server, the DHCP server comprises:
A table for managing a MAC address and an IP address, in which a combination of the MAC address and the IP address is stored.
When a first table that can be dynamically set in response to a request from a terminal and an IP address request from the terminal are received, the MAC address of the terminal and the IP address assigned to the terminal are grouped into one set. 1 and a means for notifying the DNS server, wherein the DNS server fixedly manages the host name and the MAC address, and associates the host name with the MAC address with the IP address. A second table holding information, and a MAC address of the terminal from the DHCP server.
When receiving the notification that the address and the IP address are one set, the host name of the terminal is known by using the MAC address of the second table as a key, and the host name and the I
Means for setting or updating the correspondence of P addresses.
system.
末とＤＨＣＰサーバとＤＮＳサーバとを備えるネットワ
ークにおいて，ＤＨＣＰのＩＰアドレスの動的割当てを
利用しつつ，ＤＮＳを用いたホストネームによる端末間
アクセスを可能にするダイナミック・ドメイン・ネーム
管理方法であって，前記端末の一つからＤＨＣＰ要求が
あると，前記ＤＨＣＰサーバはＩＰアドレスを該端末に
送信すると同時に該端末のＭＡＣアドレスとＩＰアドレ
スの組を前記ＤＮＳサーバに通知する過程と，該通知情
報に基づいて前記ＤＮＳサーバでＭＡＣアドレスをキー
に，ホストネームとＩＰアドレスを対応づけて管理する
過程と，前記ＤＮＳサーバに前記端末の一つからホスト
ネームが通知された場合に，ホストネームをキーとして
ＩＰアドレスを通知する過程とを有することを特徴とす
るダイナミック・ドメイン・ネーム管理方法。2. In a network including a plurality of terminals managed by an IP address system, a DHCP server, and a DNS server, access between terminals by using a host name using DNS while utilizing dynamic assignment of a DHCP IP address. A DHCP request from one of the terminals, the DHCP server transmits an IP address to the terminal and at the same time a set of a MAC address and an IP address of the terminal. Notification to the DNS server, a step of managing the DNS server by associating a host name and an IP address with a MAC address as a key based on the notification information, and a step of notifying the DNS server from one of the terminals. When the host name is notified, the IP address is notified using the host name as a key Dynamic domain name management method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28789898A JP3335582B2 (en) | 1998-10-09 | 1998-10-09 | Dynamic domain name system and dynamic domain name management method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28789898A JP3335582B2 (en) | 1998-10-09 | 1998-10-09 | Dynamic domain name system and dynamic domain name management method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000112851A true JP2000112851A (en) | 2000-04-21 |
| JP3335582B2 JP3335582B2 (en) | 2002-10-21 |
Family
ID=17723152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28789898A Expired - Fee Related JP3335582B2 (en) | 1998-10-09 | 1998-10-09 | Dynamic domain name system and dynamic domain name management method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3335582B2 (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000101589A (en) * | 1998-09-21 | 2000-04-07 | Nippon Telegr & Teleph Corp <Ntt> | Dynamic domain name system |
| KR20010088983A (en) * | 2001-08-30 | 2001-09-29 | 허기행 | The method to apply network policy and to prevent the cracking or hacking for the network client group using floating IP adress |
| JP3425192B2 (en) | 1993-08-25 | 2003-07-07 | 富士通株式会社 | Address information automatic setting processing method and address information setting device |
| KR20030065064A (en) * | 2002-01-29 | 2003-08-06 | 삼성전자주식회사 | Method for managing domain name |
| JP2004536500A (en) * | 2001-06-15 | 2004-12-02 | アドバンスト・ネットワーク・テクノロジー・ラボラトリーズ・ピーティーイー・リミテッド | Computer network |
| KR100469807B1 (en) * | 2002-09-19 | 2005-02-02 | 린나이코리아 주식회사 | Method for managing manufactured goods through internet |
| EP1505774A3 (en) * | 2003-07-28 | 2006-09-06 | Sony Corporation | Network interconnection apparatus, network interconnection method, name sesolution apparatus and computer program |
| KR100769616B1 (en) | 2005-04-25 | 2007-10-23 | 캐논 가부시끼가이샤 | Data processing device, registration method, and storage medium |
| KR100846536B1 (en) * | 2001-12-31 | 2008-07-15 | 주식회사 케이티 | Virtual Private Network using DHCCP and its Security Method |
| JP2009153050A (en) * | 2007-12-21 | 2009-07-09 | Canon Inc | Information processing apparatus, device, control method for information processing apparatus, and computer program |
| US7562155B2 (en) | 2003-01-31 | 2009-07-14 | Fujitsu Component Limited | System, method, and computer program for a console switch |
| JP2010531094A (en) * | 2007-06-15 | 2010-09-16 | エムフォーメイション テクノロジーズ インコーポレイテッド | System and method for automatic detection and reporting of mapping between device identification information and network address in a wireless network |
| JP2011023038A (en) * | 2010-10-18 | 2011-02-03 | Oki Data Corp | Parameter setting computer via network |
| US8055751B2 (en) * | 2007-11-20 | 2011-11-08 | International Business Machines Corporation | IP network management based on automatically acquired network entity status information |
| JP5195748B2 (en) * | 2007-03-29 | 2013-05-15 | 富士通株式会社 | Server management program, method, and apparatus |
| JP2013229782A (en) * | 2012-04-26 | 2013-11-07 | Nippon Telegr & Teleph Corp <Ntt> | Device and method for terminal state detection |
| JP2014230229A (en) * | 2013-05-27 | 2014-12-08 | 三菱電機インフォメーションシステムズ株式会社 | Open flow network system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3420512B2 (en) | 1998-09-21 | 2003-06-23 | 日本電信電話株式会社 | Dynamic domain name system |
-
1998
- 1998-10-09 JP JP28789898A patent/JP3335582B2/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3425192B2 (en) | 1993-08-25 | 2003-07-07 | 富士通株式会社 | Address information automatic setting processing method and address information setting device |
| JP2000101589A (en) * | 1998-09-21 | 2000-04-07 | Nippon Telegr & Teleph Corp <Ntt> | Dynamic domain name system |
| US8930573B2 (en) | 2001-06-15 | 2015-01-06 | Advanced Network Technology Laboratories Pte Ltd. | Computer networks with unique identification |
| JP2004536500A (en) * | 2001-06-15 | 2004-12-02 | アドバンスト・ネットワーク・テクノロジー・ラボラトリーズ・ピーティーイー・リミテッド | Computer network |
| US8005981B2 (en) | 2001-06-15 | 2011-08-23 | Advanced Network Technology Laboratories Pte Ltd. | Computer network with unique identification |
| KR20010088983A (en) * | 2001-08-30 | 2001-09-29 | 허기행 | The method to apply network policy and to prevent the cracking or hacking for the network client group using floating IP adress |
| KR100846536B1 (en) * | 2001-12-31 | 2008-07-15 | 주식회사 케이티 | Virtual Private Network using DHCCP and its Security Method |
| CN100405779C (en) * | 2002-01-29 | 2008-07-23 | 三星电子株式会社 | Domain name management method and device thereof |
| KR20030065064A (en) * | 2002-01-29 | 2003-08-06 | 삼성전자주식회사 | Method for managing domain name |
| KR100469807B1 (en) * | 2002-09-19 | 2005-02-02 | 린나이코리아 주식회사 | Method for managing manufactured goods through internet |
| US7562155B2 (en) | 2003-01-31 | 2009-07-14 | Fujitsu Component Limited | System, method, and computer program for a console switch |
| EP1505774A3 (en) * | 2003-07-28 | 2006-09-06 | Sony Corporation | Network interconnection apparatus, network interconnection method, name sesolution apparatus and computer program |
| US7295543B2 (en) | 2003-07-28 | 2007-11-13 | Sony Corporation | Network interconnection apparatus, network interconnection method, name resolution apparatus and computer program |
| KR100769616B1 (en) | 2005-04-25 | 2007-10-23 | 캐논 가부시끼가이샤 | Data processing device, registration method, and storage medium |
| JP5195748B2 (en) * | 2007-03-29 | 2013-05-15 | 富士通株式会社 | Server management program, method, and apparatus |
| JP2010531094A (en) * | 2007-06-15 | 2010-09-16 | エムフォーメイション テクノロジーズ インコーポレイテッド | System and method for automatic detection and reporting of mapping between device identification information and network address in a wireless network |
| US8055751B2 (en) * | 2007-11-20 | 2011-11-08 | International Business Machines Corporation | IP network management based on automatically acquired network entity status information |
| JP2009153050A (en) * | 2007-12-21 | 2009-07-09 | Canon Inc | Information processing apparatus, device, control method for information processing apparatus, and computer program |
| JP2011023038A (en) * | 2010-10-18 | 2011-02-03 | Oki Data Corp | Parameter setting computer via network |
| JP2013229782A (en) * | 2012-04-26 | 2013-11-07 | Nippon Telegr & Teleph Corp <Ntt> | Device and method for terminal state detection |
| JP2014230229A (en) * | 2013-05-27 | 2014-12-08 | 三菱電機インフォメーションシステムズ株式会社 | Open flow network system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3335582B2 (en) | 2002-10-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10148612B2 (en) | Method and system for increasing speed of domain name system resolution within a computing device | |
| JP3335582B2 (en) | Dynamic domain name system and dynamic domain name management method | |
| CN100405779C (en) | Domain name management method and device thereof | |
| US6944167B1 (en) | Method and apparatus for dynamic allocation of private address space based upon domain name service queries | |
| JP3488347B2 (en) | Automatic address distribution system and address distribution server | |
| US7010585B2 (en) | DNS server, DHCP server, terminal and communication system | |
| JP3420512B2 (en) | Dynamic domain name system | |
| JP2003198583A (en) | Setting information allocation method for external network connection | |
| JP4186733B2 (en) | Communication system, terminal, and address generation method | |
| JPH10136052A (en) | IPv4-IPv6 communication method and IPv4-IPv6 translation device | |
| JPH11284667A (en) | Multimedia communication network system and its router device and server device | |
| JP2000183874A (en) | Multiprotocol network management method, multiprotocol network management proxy server system, multiprotocol address management server system, and multiprotocol network management system | |
| CN118200027A (en) | Private domain DNS (Domain name Server) implementation method, system and equipment for sharing computing resources | |
| KR100355288B1 (en) | Apparatus and method for providing service server functionality to the hosts of a private network | |
| JPH09282259A (en) | Network system | |
| JP2001308909A (en) | Logical network address assignment method and terminal device | |
| JP2004015795A (en) | IPv4 management method and management device in IPv6 wireless LAN environment | |
| US7702812B2 (en) | Address allocation system and method | |
| JP2002152253A (en) | Communication management system, communication terminal, and communication management method, and program storage medium | |
| JP3775378B2 (en) | Firewall system that supports dynamic IP address assignment | |
| KR100628331B1 (en) | Dual Stack Switching Mechanism Communication Method for Automatically Acquiring Address Block from Server | |
| KR20040085644A (en) | Method For Building Auto Home Network Using Telephone Number and IPv6 | |
| KR20050048383A (en) | Assignment and registration method for ipv6 address over dhcpv6 server | |
| JP2001045050A (en) | CUG shared IP packet communication device | |
| JP2007074059A (en) | Communication support device, system, communication method, and computer program |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080802 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080802 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090802 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090802 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100802 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100802 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110802 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120802 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130802 Year of fee payment: 11 |
|
| LAPS | Cancellation because of no payment of annual fees |