JP2014232903A - Network relay device - Google Patents

Network relay device Download PDF

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JP2014232903A
JP2014232903A JP2013111458A JP2013111458A JP2014232903A JP 2014232903 A JP2014232903 A JP 2014232903A JP 2013111458 A JP2013111458 A JP 2013111458A JP 2013111458 A JP2013111458 A JP 2013111458A JP 2014232903 A JP2014232903 A JP 2014232903A
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network
relay device
network relay
display
processor
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JP6171568B2 (en
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文子 中部
Fumiko Nakabe
文子 中部
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Dai Nippon Printing Co Ltd
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Dai Nippon Printing Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a network relay device capable of checking a detailed content of data exchanged by using a network, without connecting with a personal computer.SOLUTION: A network relay device 1 has: a processor 10 for controlling the whole of the network relay device 1; and a display 11 being a device for displaying text data. The processor 10 operates in accordance with a program stored in a memory 12 and performs processing to display the whole or part of packet data exchanged by a server 2a connected to a WAN side and a client 2b connected to a LAN side through the network on the display 11.

Description

本発明は， ルータ，スイッチやファイヤーウォールなど，ネットワークを介してやりとりされるデータを中継するネットワーク中継装置に関する。   The present invention relates to a network relay device that relays data exchanged via a network, such as a router, a switch, and a firewall.

現在流通しているルータ，スイッチやファイヤーウォールといったネットワーク中継装置には，特許文献１に記載があるように，ネットワーク中継装置の状態を示すインジケータが設けられている。しかし，インジケータは，インジケータの色や点滅によって，電源投入の有無，エラーの有無，送信中であるか否か等を示すに過ぎず，ネットワーク中継装置をパーソナルコンピュータに接続しなければ，ネットワーク中継装置が中継するデータの詳細内容を調べることはできなかった。   Network relay devices such as routers, switches, and firewalls that are currently distributed are provided with an indicator that indicates the status of the network relay device, as described in Patent Document 1. However, the indicator only indicates whether the power is turned on, whether there is an error, whether transmission is in progress, or the like by the color or blinking of the indicator. If the network relay device is not connected to a personal computer, the network relay device Could not check the details of the data relayed by.

特開２００５−３９１９０号公報JP 2005-39190 A

そこで，本発明は，パーソナルコンピュータと接続することなく，ネットワークを介してやりとりされるデータの詳細内容を調べることができるネットワーク中継装置を提供することを目的とする。   Therefore, an object of the present invention is to provide a network relay device that can check the detailed contents of data exchanged via a network without being connected to a personal computer.

上述した課題を解決する本願発明は，ネットワークを介してやりとりされるパケットデータを中継する装置であって，テキストデータを表示する装置であるディスプレイと，中継する前記パケットデータの全てまたは一部を前記ディスプレイに表示させるプロセッサを備えたことを特徴とするネットワーク中継装置である。   The present invention that solves the above-described problems is an apparatus that relays packet data exchanged via a network, the display being an apparatus that displays text data, and all or part of the packet data to be relayed A network relay device comprising a processor to be displayed on a display.

上述した本発明によれば，本発明に係るネットワーク中継装置がディスプレイを備え，ネットワーク中継装置のプロセッサが，中継するパケットデータの全てまたは一部をディスプレイに表示させることで，ネットワーク中継装置のディスプレイを見れば，ネットワークを利用してやりとりされるデータの詳細内容を調べることができるようになる。   According to the above-described present invention, the network relay device according to the present invention includes a display, and the processor of the network relay device displays all or part of the packet data to be relayed on the display, whereby the display of the network relay device is displayed. If you look at it, you will be able to examine the details of the data exchanged using the network.

本実施形態に係るネットワーク中継装置の外観を説明する図。The figure explaining the external appearance of the network relay apparatus which concerns on this embodiment. 本実施形態に係るネットワーク中継装置のブロック図。The block diagram of the network relay apparatus which concerns on this embodiment. ＰＰＰ（Point-to-Point Protocol）によりセッションを確立する際の各種処理を説明する図。The figure explaining the various processes at the time of establishing a session by PPP (Point-to-Point Protocol).

ここから，本発明の好適な実施形態を記載する。なお，以下の記載は本発明の範囲を束縛するものでなく，理解を助けるために記述するものである。   From here, preferred embodiments of the present invention will be described. The following description is not intended to limit the scope of the present invention, but is provided to aid understanding.

図１は，本実施形態に係るネットワーク中継装置１の外観を説明する図，図２は，本実施形態に係るネットワーク中継装置１のブロック図である。   FIG. 1 is a diagram illustrating the appearance of the network relay device 1 according to the present embodiment, and FIG. 2 is a block diagram of the network relay device 1 according to the present embodiment.

本実施形態に係るネットワーク中継装置１は，ネットワークを介してやりとりされるパケットデータを中継する機器で，図１に図示したように，本実施形態に係るネットワーク中継装置１の前面パネル１ａには，ネットワークと有線で接続するネットワークポートとして，イントラネットやＷＡＮ（Wide Area Network）と接続するＷＡＮ側のネットワークポート１５と，ＬＡＮ（Local Area Network）と接続する少なくとも一つ（ここでは，４つ）のＬＡＮ側のネットワークポート１６が設けられ，更に，ネットワーク中継装置１の状況を知らせるデバイスとして，色が緑のＬＥＤ１７ａと色がオレンジ色のＬＥＤ１７ｂに加え，ネットワークを介してやりとりされるパケットデータの詳細内容の表示に用いるディスプレイ１１が設けられている。   The network relay device 1 according to the present embodiment is a device that relays packet data exchanged via a network. As illustrated in FIG. 1, the front panel 1a of the network relay device 1 according to the present embodiment includes: As network ports to be connected to the network in a wired manner, the network port 15 on the WAN side that is connected to an intranet or a WAN (Wide Area Network), and at least one (here, four) LANs that are connected to a LAN (Local Area Network) In addition to the green LED 17a and the orange LED 17b as a device for notifying the status of the network relay device 1, the detailed contents of the packet data exchanged via the network are provided. A display 11 used for display is provided.

また，図２に図示したように，本実施形態に係るネットワーク中継装置１は，ネットワーク中継装置１の全体を制御するプロセッサ１０を有し，このプロセッサ１０には，プロセッサ１０を動作させるためのプログラムやデータが格納されるメモリ１２と，テキストデータを表示するデバイスであるディスプレイ１１と，ネットワークの物理層に対応したＰＨＹ（Physical Layer）チップ１３と，ネットワークの物理層に対応したスイッチングハブチップ１４が接続されている。なお，ＷＡＮ側のネットワークポート１５はＰＨＹチップ１３に接続し，４つのＬＡＮ側のネットワークポート１６はスイッチングハブチップ１４に接続している。   As shown in FIG. 2, the network relay device 1 according to this embodiment includes a processor 10 that controls the entire network relay device 1, and the processor 10 includes a program for operating the processor 10. And a memory 12 for storing data, a display 11 which is a device for displaying text data, a PHY (Physical Layer) chip 13 corresponding to the physical layer of the network, and a switching hub chip 14 corresponding to the physical layer of the network. It is connected. The WAN-side network port 15 is connected to the PHY chip 13, and the four LAN-side network ports 16 are connected to the switching hub chip 14.

ネットワーク中継装置１が備えるプロセッサ１０は，メモリ１２に格納されたプログラムに従い動作し，ＷＡＮ側に接続されたサーバ２ａとＬＡＮ側に接続されたクライアント２ｂがネットワークを介してやりとりするパケットデータの全てまたは一部をディスプレイ１１に表示させる処理を行う。   The processor 10 included in the network relay device 1 operates according to a program stored in the memory 12, and all or all of the packet data exchanged via the network between the server 2a connected to the WAN side and the client 2b connected to the LAN side. A process of displaying a part on the display 11 is performed.

ここから，ＰＰＰ（Point-to-Point Protocol）によりセッションを確立する際の各種処理を例にあげて，ネットワーク中継装置１のプロセッサ１０がディスプレイ１１に表示させるデータについて説明する。   From here, the data which the processor 10 of the network relay apparatus 1 displays on the display 11 is demonstrated by taking as an example various processes at the time of establishing a session by PPP (Point-to-Point Protocol).

図３は，ＰＰＰによりセッションを確立する際の各種処理を説明する図である。サーバ２ａとクライアント２ｂ間でセッションを確立する際，サーバ２ａとクライアン２ｂ間のリンクを確立するリンク確立プロセス（Ｓ１）が実施される。このリンク確立プロセス（Ｓ１）では，サーバ２ａとクライアント２ｂ間でＬＣＰ（Link Control Protocol）パケットが交換され，最大パケットサイズなどの通信条件が決定されるため，ネットワーク中継装置１のプロセッサ１０は，サーバ２ａとクライアント２ｂ間で交換するＬＣＰパケットのデータ本体をディスプレイ１１に表示する。   FIG. 3 is a diagram for explaining various processes when a session is established by PPP. When a session is established between the server 2a and the client 2b, a link establishment process (S1) for establishing a link between the server 2a and the client 2b is performed. In this link establishment process (S1), LCP (Link Control Protocol) packets are exchanged between the server 2a and the client 2b, and communication conditions such as the maximum packet size are determined. The data body of the LCP packet exchanged between 2a and the client 2b is displayed on the display 11.

リンク確立プロセス（Ｓ１）が実施された後，サーバ２ａがクライアント２ｂを認証する認証プロセスが実施される。この認証プロセス（Ｓ２）において，サーバ２ａは，ＰＡＰ（Password Authentication Protocol）やＣＨＡＰ（Challenge Handshake Authentication Protocol）などの手法でクライアント２ｂを認証するため，ネットワーク中継装置１のプロセッサ１０は，クライアント２ｂからサーバ２ａへ送信する認証プロセス（Ｓ２）のパケットデータに含まれるユーザＩＤおよび認証データや，サーバ２ａからクライアント２ｂに送信される認証プロセス（Ｓ２）のパケットデータに含まれる認証結果をディスプレイ１１に表示する。   After the link establishment process (S1) is performed, an authentication process in which the server 2a authenticates the client 2b is performed. In this authentication process (S2), the server 2a authenticates the client 2b by a technique such as PAP (Password Authentication Protocol) or CHAP (Challenge Handshake Authentication Protocol). The user ID and authentication data included in the packet data of the authentication process (S2) transmitted to 2a and the authentication result included in the packet data of the authentication process (S2) transmitted from the server 2a to the client 2b are displayed on the display 11. .

認証プロセス（Ｓ２）が実施された後，ＯＳＩ参照モデルのネットワーク層を構成するネットワーク層プロトコルフェーズが実施され（Ｓ３），このネットワーク層プロトコルフェーズでは，ＮＣＰ（Network Control Protocol）を用いてネットワーク層が構成される。例えば，ＮＣＰがＩＰ（Internet Protocol）の場合，サーバ２ａとクライアント２ｂ間でＩＰパケットが交換されるため，ネットワーク中継装置１のプロセッサ１０は，サーバ２ａとクライアント２ｂ間で交換するＩＰパケットのヘッダの一部（送信元ＩＰアドレスと宛先ＩＰアドレス）をディスプレイ１１に表示する。   After the authentication process (S2) is performed, a network layer protocol phase constituting the network layer of the OSI reference model is performed (S3). In this network layer protocol phase, the network layer is configured using NCP (Network Control Protocol). Composed. For example, when the NCP is IP (Internet Protocol), since the IP packet is exchanged between the server 2a and the client 2b, the processor 10 of the network relay device 1 uses the header of the IP packet exchanged between the server 2a and the client 2b. A part (source IP address and destination IP address) is displayed on the display 11.

１ ネットワーク中継装置
１０ プロセッサ
１１ ディスプレイ
１２ メモリ
１３ ＰＨＹチップ
１４ スイッチングハブチップ
１５ ＷＡＮ側のネットワークポート
１６ ＬＡＮ側のネットワークポート
２ａ サーバ
２ｂ クライアント

DESCRIPTION OF SYMBOLS 1 Network relay apparatus 10 Processor 11 Display 12 Memory 13 PHY chip 14 Switching hub chip 15 WAN side network port 16 LAN side network port 2a Server 2b Client

Claims (1)

ネットワークを利用してやりとりされるパケットデータを中継する装置であって，テキストデータを表示する装置であるディスプレイと，中継する前記パケットデータの全てまたは一部を前記ディスプレイに表示させるプロセッサを備えたことを特徴とするネットワーク中継装置。
A device that relays packet data exchanged using a network, comprising a display that is a device that displays text data, and a processor that displays all or part of the packet data to be relayed on the display A network relay device characterized by the above.
JP2013111458A 2013-05-28 2013-05-28 Network relay device Expired - Fee Related JP6171568B2 (en)

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US20040218544A1 (en) * 2003-05-02 2004-11-04 Ray Lee Router capable of displaying network system
JP2005236908A (en) * 2004-02-23 2005-09-02 Yamaha Corp Data repeater
US20060187890A1 (en) * 2005-01-30 2006-08-24 Frank Lin LCD display on wireless router
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07115435A (en) * 1993-10-19 1995-05-02 Toshiba Corp Packet processing device
JP2001177595A (en) * 1999-11-08 2001-06-29 Agilent Technol Inc Device and method for identifying associated protocol data unit
JP2001230819A (en) * 1999-12-30 2001-08-24 At & T Corp Ip leased line
JP2004207962A (en) * 2002-12-25 2004-07-22 Nec Commun Syst Ltd High speed router, packet monitor system, and packet monitor method
US20040218544A1 (en) * 2003-05-02 2004-11-04 Ray Lee Router capable of displaying network system
JP2005236908A (en) * 2004-02-23 2005-09-02 Yamaha Corp Data repeater
US20060187890A1 (en) * 2005-01-30 2006-08-24 Frank Lin LCD display on wireless router
JP2010183214A (en) * 2009-02-04 2010-08-19 Nec Access Technica Ltd Apparatus, method and program for analysis of packet
US20110126095A1 (en) * 2009-11-25 2011-05-26 T-Mobile USA, Inc Router Management via Touch-Sensitive Display

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Title
山本洋介山: "愛用アプリがＵＵＩＤを使っているかチェックできる スマートフォンの通信を見てみよう", ハッカージャパン 第１１巻 第３号, JPN6017005553, 1 May 2012 (2012-05-01), JP, pages 52 - 55, ISSN: 0003502366 *

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