[FLAGS] TCP 플래그

 

 

 

 

 

# SYN

Synchronize Flag는 접속을 요청할 때 사용됩니다.

 

# ACK

Acknowledgement Flag는 접속에 응답할 때 사용됩니다.

 

 

 

 

 

# FIN

Fin Flag는 데이터의 전송을 완료한 후 또는 세션 종료 요청을 할 경우에 사용됩니다.

 

# RST

Reset Flag는 원인을 알 수 없는 장애로 통신을 복구할 수 없는 경우 또는 일방적으로 세션을 끊기 위해 사용됩니다.

 

 

 

 

 

# PSH

Push Flag는 데이터를 빨리 보내고자 할 경우에 사용됩니다.

 

# URG

Urgent Flag는 긴급히 데이터를 처리해야 할 때 사용됩니다.

 

 

 

 

 

# ECE

ENC-echo는 네트워크의 혼잡 가능성을 미리 탐지하여 이를 송신측에 알려 전송속도를 조절할 경우 사용됩니다.

 

# CWR

Congestion Window Reduced는 수신자 버퍼의 상태를 송신자에게 알려 송신 윈도우의 사이즈를 줄이기 위해 사용됩니다.

 

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[Wireshark] 와이어샤크에서 국가정보 필터 활성화하는 방법

 

 

 

 

 

와이어샤크를 통해 트래픽 덤프를 확인할 때 가끔 출발지, 목적지 IP에 대한 지리정보가 필요한 경우가 있습니다.

 

 

이럴 때 와이어샤크 GeoIP 필터를 통해 실시간 덤프 또는 덤프 분석 시 유용하게 사용할 수 있습니다.

 

 

 

 

 

# Wireshark와 GeoIP 연동 방법

 

 

1. Wireshark에서는 GeoIP 연동이 가능합니다.

 

 

 

 

 

 

2. maxmind에서 무료버전인 GeoLite DB를 다운로드 합니다. (상용 DB도 있습니다.)

 

URL : http://geolite.maxmind.com/download/geoip/database/GeoLiteCountry/GeoIP.dat.gz

 

 

 

 

 

3. Country, City, AS Number 등의 DB를 사용할 수 있으나 이번엔 Country를 선택합니다.

 

다운 받으신 GeoIP.dat.gz 을 압축을 푸시면 GeoIP.dat 파일이 나옵니다.

 

 

 

 

 

4. 해당 GeoIP.dat 파일을 적당한 경로에 복사합니다.

 

저는 와이어샤크 경로에 폴더를 하나 만들어 저장을 하였습니다.

 

 

 

 

 

 

5. 이제 와이어샤크를 설정할 차례입니다.

 

먼저, 다운 받은 GeoIP 파일을 wireshark에 업로드 하기위해

Edit - Preferences - Name Resolution 에서 GeoIP database directories 를 설정합니다.

(4번에서 설정하신 경로를 선택하시면 됩니다.)

 

다음으로, Edit - Preferences 에서 Protocol 탭에 있는 IPv4를 선택합니다.

해당 창에서 Enable GeoIP lookups 을 체크 합니다.

 

 

 

 

 

 

6. 그 다음 User Interface - Columns 에서 다음과 같이 2개의 필터를 Add 합니다.

 

Add 를 하신 후 Title은 각각 Src Country, Dst Country로 마우스 클릭 후 입력하시고,

Field typeCustom을 선택하신 후 Field nameip.geoip.src_countryip.geoip.dst_country를 입력하신 후 Apply - OK로 저장합니다.

 

 

 

 

 

 

 

7. 이렇게 설정하시면 다음과 같이 트래픽 덤프 시 나라 정보 확인이 가능합니다.

 

 

 

 

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[패킷분석] 네트워크 포렌식 분석 툴 NetworkMiner

 

 

 

 

 

NetworkMiner 는 윈도우에서 동작하는 네트워크 포렌식 분석 툴(NFAT) 입니다.

 

 

 

 

 

네트워크 패킷 캡처가 가능하며, 오프라인에서 PCAP 파일을 분석할 수 있습니다.

 

 

 

 

 

다운로드 링크 : http://sourceforge.net/projects/networkminer/files/latest

 

 

 

 

 

 

 

 

 

 

IP, MAC, Hostname, Sent or Received Packet 등 여러가지 옵션으로 정렬하여 패킷을 분석할 수 있습니다.

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[명령어] Cisco Port Down 명령어 : UDLD


Cisco 스위치에서 Shutdown을 할 경우, 인터페이스 administrator down 과 port down이 있습니다.

그 중 port down을 강제적으로 할 때 다음과 같이 합니다.



1. 해당 인터페이스를 셧다운 합니다.

Switch#conf t
Switch(config)#interface fastEthernet 0/21
Switch(config-if)#shutdown


2. conf t 후 udld aggressive로 적용합니다.

Switch#conf t
Switch(config)#udld aggressive

 

# udld (UniDirectional Link Detection) 프로토콜 실행 버전 : 12.2_25

 

--
# 해제 방법

Switch#conf t
Switch(config)#no udld aggressive

 

// Fail Close 테스트 시 좋은 방법 입니다. ^^;

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  1. wind1237 2012.03.27 13:22 신고

    감사합니다!


[wireshark] 와이어샤크 필터 정리

arp 트래픽 필터 ; Filter에 arp 입력



icmp 트래픽 필터 ; Filter에 icmp 입력



http 트래픽 내 jpg 파일 포함 필터 ; Filter에 http contains jpg

필터 예)
1. 코드레드 확인 ; tcp contains default.ida
2. 님다 확인 ; http contains cmd.exe




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  1. 2011.12.11 05:31

    비밀댓글입니다

    • Wireshark 사용법에 대한 책이 시중에 있습니다만...

      만약 PC방 PC들 중 트래픽이 폭주하는 PC를 찾으려면
      Wireshark 보다는 Sniffer로 확인하시는 것이 빠릅니다.

      또한 PC방 스위치에 접속하여 확인하는 방법도 가능하고요...


[ping] ping 명령어 옵션


Usage: ping [-t] [-a] [-n count] [-l size] [-f] [-i TTL] [-v TOS]
            [-r count] [-s count] [[-j host-list] | [-k host-list]]
            [-w timeout] target_name


Options:
    -t             Ping the specified host until stopped.
                   To see statistics and continue - type Control-Break;
                   To stop - type Control-C.
    -a             Resolve addresses to hostnames.
    -n count       Number of echo requests to send.
    -l size        Send buffer size.
    -f             Set Don't Fragment flag in packet.
    -i TTL         Time To Live.
    -v TOS         Type Of Service.
    -r count       Record route for count hops.
    -s count       Timestamp for count hops.
    -j host-list   Loose source route along host-list.
    -k host-list   Strict source route along host-list.
    -w timeout     Timeout in milliseconds to wait for each reply.


--
-t : 정지할 때 까지 계속 ping을 보냄, Ctrl+C 는 중지, Ctrl+Break 는 통계 표시 후 계속 보냄



-a : 호스트명이나 FQDN을 보여줌



-n : echo request를 보낼 횟수를 정함 (기본은 4번)



-l : 보낼 패킷의 크기를 정함 (기본은 32바이트, 최대값은 65500바이트)



-f : 패킷이 라우터 등을 통과할 때 fragmentation 되지 않도록 정함

-i : 패킷이 네트워크 상에서 생존할 수 있는 시간 즉, Time To Live를 지정함 (라우터를 하나 거칠때 마다 1씩 감소, 기본은 윈도우의 경우 128)

위의 경우 kns.kornet.net 의 경우 해당 PC에서 6단계를 거쳐 통신됨
그러므로 TTL을 6으로 정하면 reply가 오지만, TTL을 5 이하로 정하면 TTL이 expired 되었다고 함



-v : 패킷의 TOS를 지정할 수 있음 (IP 헤더의 DS 필드값 조정을 통해 QoS를 변경할 수 있음)



-r : 라우팅 되는 Hop count를 기록할 수 있음 (최대 9개까지 IP 헤더의 Options 부분에 저장함)



-s : r과 마찬가지로 IP 헤더의 Options 부분에 경유한 라우터의 주소와 시간을 기록함 (최대 4개까지 가능)


-j : ...

-k : ...

-w : ...

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[MAC] Vendor 별 MAC Address

맥 주소별 제조사 리스트 입니다.

벤더별 mac 주소.txt


몇 몇 낯익은 벤더들이 보입니다. ^_^

00-00-00 XEROX CORPORATION
00-00-01 XEROX CORPORATION
00-00-02 XEROX CORPORATION
00-00-03 XEROX CORPORATION
00-00-04 XEROX CORPORATION
00-00-05 XEROX CORPORATION
00-00-06 XEROX CORPORATION
00-00-07 XEROX CORPORATION
00-00-08 XEROX CORPORATION
00-00-09 XEROX CORPORATION
00-00-0A OMRON TATEISI ELECTRONICS CO.
00-00-0B MATRIX CORPORATION
00-00-0C CISCO SYSTEMS, INC.
00-00-0D FIBRONICS LTD.
00-00-0E FUJITSU LIMITED
00-00-0F NEXT, INC.
00-00-10 SYTEK INC.
00-00-11 NORMEREL SYSTEMES
00-00-12 INFORMATION TECHNOLOGY LIMITED
00-00-13 CAMEX
00-00-14 NETRONIX
00-00-15 DATAPOINT CORPORATION
00-00-16 DU PONT PIXEL SYSTEMS .
00-00-17 TEKELEC
00-00-18 WEBSTER COMPUTER CORPORATION
00-00-19 APPLIED DYNAMICS INTERNATIONAL
00-00-1A ADVANCED MICRO DEVICES
00-00-1B NOVELL INC.
00-00-1C BELL TECHNOLOGIES
00-00-1D CABLETRON SYSTEMS, INC.
00-00-1E TELSIST INDUSTRIA ELECTRONICA
00-00-1F Telco Systems, Inc.
00-00-20 DATAINDUSTRIER DIAB AB
00-00-21 SUREMAN COMP. & COMMUN. CORP.
00-00-22 VISUAL TECHNOLOGY INC.
00-00-23 ABB INDUSTRIAL SYSTEMS AB
00-00-24 CONNECT AS
00-00-25 RAMTEK CORP.
00-00-26 SHA-KEN CO., LTD.
00-00-27 JAPAN RADIO COMPANY
00-00-28 PRODIGY SYSTEMS CORPORATION
00-00-29 IMC NETWORKS CORP.
00-00-2A TRW - SEDD/INP
00-00-2B CRISP AUTOMATION, INC
00-00-2C AUTOTOTE LIMITED
00-00-2D CHROMATICS INC
00-00-2E SOCIETE EVIRA
00-00-2F TIMEPLEX INC.
00-00-30 VG LABORATORY SYSTEMS LTD
00-00-31 QPSX COMMUNICATIONS PTY LTD
00-00-32 Marconi plc
00-00-33 EGAN MACHINERY COMPANY
00-00-34 NETWORK RESOURCES CORPORATION
00-00-35 SPECTRAGRAPHICS CORPORATION
00-00-36 ATARI CORPORATION
00-00-37 OXFORD METRICS LIMITED
00-00-38 CSS LABS
00-00-39 TOSHIBA CORPORATION
00-00-3A CHYRON CORPORATION
00-00-3B i Controls, Inc.
00-00-3C AUSPEX SYSTEMS INC.
00-00-3D UNISYS
00-00-3E SIMPACT
00-00-3F SYNTREX, INC.
00-00-40 APPLICON, INC.
00-00-41 ICE CORPORATION
00-00-42 METIER MANAGEMENT SYSTEMS LTD.
00-00-43 MICRO TECHNOLOGY
00-00-44 CASTELLE CORPORATION
00-00-45 FORD AEROSPACE & COMM. CORP.
00-00-46 OLIVETTI NORTH AMERICA
00-00-47 NICOLET INSTRUMENTS CORP.
00-00-48 SEIKO EPSON CORPORATION
00-00-49 APRICOT COMPUTERS, LTD
00-00-4A ADC CODENOLL TECHNOLOGY CORP.
00-00-4B ICL DATA OY
00-00-4C NEC CORPORATION
00-00-4D DCI CORPORATION
00-00-4E AMPEX CORPORATION
00-00-4F LOGICRAFT, INC.
00-00-50 RADISYS CORPORATION
00-00-51 HOB ELECTRONIC GMBH & CO. KG
00-00-52 OPTICAL DATA SYSTEMS
00-00-53 COMPUCORP
00-00-54 MODICON, INC.
00-00-55 COMMISSARIAT A L`ENERGIE ATOM.
00-00-56 DR. B. STRUCK
00-00-57 SCITEX CORPORATION LTD.
00-00-58 RACORE COMPUTER PRODUCTS INC.
00-00-59 HELLIGE GMBH
00-00-5A SYSKONNECT--A BUSINESS UNIT OF
00-00-5B ELTEC ELEKTRONIK AG
00-00-5C TELEMATICS INTERNATIONAL INC.
00-00-5D CS TELECOM
00-00-5E USC INFORMATION SCIENCES INST
00-00-5F SUMITOMO ELECTRIC IND., LTD.
00-00-60 KONTRON ELEKTRONIK GMBH
00-00-61 GATEWAY COMMUNICATIONS
00-00-62 BULL HN INFORMATION SYSTEMS
00-00-63 DR.ING.SEUFERT GMBH
00-00-64 YOKOGAWA DIGITAL COMPUTER CORP
00-00-65 NETWORK ASSOCIATES, INC.
00-00-66 TALARIS SYSTEMS, INC.
00-00-67 SOFT * RITE, INC.
00-00-68 ROSEMOUNT CONTROLS
00-00-69 CONCORD COMMUNICATIONS INC
00-00-6A COMPUTER CONSOLES INC.
00-00-6B SILICON GRAPHICS INC./MIPS
00-00-6D CRAY COMMUNICATIONS, LTD.
00-00-6E ARTISOFT, INC.
00-00-6F MADGE NETWORKS LTD.
00-00-70 HCL LIMITED
00-00-71 ADRA SYSTEMS INC.
00-00-72 MINIWARE TECHNOLOGY
00-00-73 SIECOR CORPORATION
00-00-74 RICOH COMPANY LTD.
00-00-75 Nortel Networks
00-00-76 ABEKAS VIDEO SYSTEM
00-00-77 INTERPHASE CORPORATION
00-00-78 LABTAM LIMITED
00-00-79 NETWORTH INCORPORATED
00-00-7A DANA COMPUTER INC.
00-00-7B RESEARCH MACHINES
00-00-7C AMPERE INCORPORATED
00-00-7D SUN MICROSYSTEMS, INC.
00-00-7E CLUSTRIX CORPORATION
00-00-7F LINOTYPE-HELL AG
00-00-80 CRAY COMMUNICATIONS A/S
00-00-81 BAY NETWORKS
00-00-82 LECTRA SYSTEMES SA
00-00-83 TADPOLE TECHNOLOGY PLC
00-00-84 SUPERNET
00-00-85 CANON INC.
00-00-86 MEGAHERTZ CORPORATION
00-00-87 HITACHI, LTD.
00-00-88 COMPUTER NETWORK TECH. CORP.
00-00-89 CAYMAN SYSTEMS INC.
00-00-8A DATAHOUSE INFORMATION SYSTEMS
00-00-8B INFOTRON
00-00-8C ALLOY COMPUTER PRODUCTS, INC.
00-00-8D VERDIX CORPORATION
00-00-8E SOLBOURNE COMPUTER, INC.
00-00-8F RAYTHEON COMPANY
00-00-90 MICROCOM
00-00-91 ANRITSU CORPORATION
00-00-92 COGENT DATA TECHNOLOGIES
00-00-93 PROTEON INC.
00-00-94 ASANTE TECHNOLOGIES
00-00-95 SONY TEKTRONIX CORP.
00-00-96 MARCONI ELECTRONICS LTD.
00-00-97 EPOCH SYSTEMS
00-00-98 CROSSCOMM CORPORATION
00-00-99 MTX, INC.
00-00-9A RC COMPUTER A/S
00-00-9B INFORMATION INTERNATIONAL, INC
00-00-9C ROLM MIL-SPEC COMPUTERS
00-00-9D LOCUS COMPUTING CORPORATION
00-00-9E MARLI S.A.
00-00-9F AMERISTAR TECHNOLOGIES INC.
00-00-A0 TOKYO SANYO ELECTRIC CO. LTD.
00-00-A1 MARQUETTE ELECTRIC CO.
00-00-A2 BAY NETWORKS
00-00-A3 NETWORK APPLICATION TECHNOLOGY
00-00-A4 ACORN COMPUTERS LIMITED
00-00-A5 COMPATIBLE SYSTEMS CORP.
00-00-A6 NETWORK GENERAL CORPORATION
00-00-A7 NETWORK COMPUTING DEVICES INC.
00-00-A8 STRATUS COMPUTER INC.
00-00-A9 NETWORK SYSTEMS CORP.
00-00-AA XEROX CORPORATION
00-00-AB LOGIC MODELING CORPORATION
00-00-AC CONWARE COMPUTER CONSULTING
00-00-AD BRUKER INSTRUMENTS INC.
00-00-AE DASSAULT ELECTRONIQUE
00-00-AF NUCLEAR DATA INSTRUMENTATION
00-00-B0 RND-RAD NETWORK DEVICES
00-00-B1 ALPHA MICROSYSTEMS INC.
00-00-B2 TELEVIDEO SYSTEMS, INC.
00-00-B3 CIMLINC INCORPORATED
00-00-B4 EDIMAX COMPUTER COMPANY
00-00-B5 DATABILITY SOFTWARE SYS. INC.
00-00-B6 MICRO-MATIC RESEARCH
00-00-B7 DOVE COMPUTER CORPORATION
00-00-B8 SEIKOSHA CO., LTD.
00-00-B9 MCDONNELL DOUGLAS COMPUTER SYS
00-00-BA SIIG, INC.
00-00-BB TRI-DATA
00-00-BC ALLEN-BRADLEY CO. INC.
00-00-BD MITSUBISHI CABLE COMPANY
00-00-BE THE NTI GROUP
00-00-BF SYMMETRIC COMPUTER SYSTEMS
00-00-C0 WESTERN DIGITAL CORPORATION
00-00-C1 Madge Networks Ltd.
00-00-C2 INFORMATION PRESENTATION TECH.
00-00-C3 HARRIS CORP COMPUTER SYS DIV
00-00-C4 WATERS DIV. OF MILLIPORE
00-00-C5 FARALLON COMPUTING/NETOPIA
00-00-C6 EON SYSTEMS
00-00-C7 ARIX CORPORATION
00-00-C8 ALTOS COMPUTER SYSTEMS
00-00-C9 EMULEX CORPORATION
00-00-CA APPLITEK
00-00-CB COMPU-SHACK ELECTRONIC GMBH
00-00-CC DENSAN CO., LTD.
00-00-CD Centrecom Systems, Ltd.
00-00-CE MEGADATA CORP.
00-00-CF HAYES MICROCOMPUTER PRODUCTS
00-00-D0 DEVELCON ELECTRONICS LTD.
00-00-D1 ADAPTEC INCORPORATED
00-00-D2 SBE, INC.
00-00-D3 WANG LABORATORIES INC.
00-00-D4 PURE DATA LTD.
00-00-D5 MICROGNOSIS INTERNATIONAL
00-00-D6 PUNCH LINE HOLDING
00-00-D7 DARTMOUTH COLLEGE
00-00-D8 NOVELL, INC.
00-00-D9 NIPPON TELEGRAPH & TELEPHONE
00-00-DA ATEX
00-00-DB BRITISH TELECOMMUNICATIONS PLC
00-00-DC HAYES MICROCOMPUTER PRODUCTS
00-00-DD TCL INCORPORATED
00-00-DE CETIA
00-00-DF BELL & HOWELL PUB SYS DIV
00-00-E0 QUADRAM CORP.
00-00-E1 GRID SYSTEMS
00-00-E2 ACER TECHNOLOGIES CORP.
00-00-E3 INTEGRATED MICRO PRODUCTS LTD
00-00-E4 IN2 GROUPE INTERTECHNIQUE
00-00-E5 SIGMEX LTD.
00-00-E6 APTOR PRODUITS DE COMM INDUST
00-00-E7 STAR GATE TECHNOLOGIES
00-00-E8 ACCTON TECHNOLOGY CORP.
00-00-E9 ISICAD, INC.
00-00-EA UPNOD AB
00-00-EB MATSUSHITA COMM. IND. CO. LTD.
00-00-EC MICROPROCESS
00-00-ED APRIL
00-00-EE NETWORK DESIGNERS, LTD.
00-00-EF KTI
00-00-F0 SAMSUNG ELECTRONICS CO., LTD.
00-00-F1 MAGNA COMPUTER CORPORATION
00-00-F2 SPIDER COMMUNICATIONS
00-00-F3 GANDALF DATA LIMITED
00-00-F4 ALLIED TELESYN INTERNATIONAL
00-00-F5 DIAMOND SALES LIMITED
00-00-F6 APPLIED MICROSYSTEMS CORP.
00-00-F7 YOUTH KEEP ENTERPRISE CO LTD
00-00-F8 DIGITAL EQUIPMENT CORPORATION
00-00-F9 QUOTRON SYSTEMS INC.
00-00-FA MICROSAGE COMPUTER SYSTEMS INC
00-00-FB RECHNER ZUR KOMMUNIKATION
00-00-FC MEIKO
00-00-FD HIGH LEVEL HARDWARE
00-00-FE ANNAPOLIS MICRO SYSTEMS
00-00-FF CAMTEC ELECTRONICS LTD.
00-01-00 EQUIP'TRANS
00-01-02 3COM CORPORATION
00-01-03 3COM CORPORATION
00-01-04 DVICO Co., Ltd.
00-01-05 BECKHOFF GmbH
00-01-06 Tews Datentechnik GmbH
00-01-07 Leiser GmbH
00-01-08 AVLAB Technology, Inc.
00-01-09 Nagano Japan Radio Co., Ltd.
00-01-0A CIS TECHNOLOGY INC.
00-01-0B Space CyberLink, Inc.
00-01-0C System Talks Inc.
00-01-0D CORECO, INC.
00-01-0E Bri-Link Technologies Co., Ltd
00-01-0F Nishan Systems, Inc.
00-01-10 Gotham Networks
00-01-11 iDigm Inc.
00-01-12 Shark Multimedia Inc.
00-01-13 OLYMPUS OPTICAL CO., LTD.
00-01-14 KANDA TSUSHIN KOGYO CO., LTD.
00-01-15 EXTRATECH CORPORATION
00-01-16 Netspect Technologies, Inc.
00-01-17 CANAL +
00-01-18 EZ Digital Co., Ltd.
00-01-19 Action Controls Pty. Ltd.
00-01-1A EEH DataLink GmbH
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00-30-4D ESI
00-30-4E BUSTEC PRODUCTION LTD.
00-30-4F PLANET Technology Corporation
00-30-50 Versa Technology
00-30-51 ORBIT AVIONIC & COMMUNICATION
00-30-52 ELASTIC NETWORKS
00-30-53 Basler AG
00-30-54 CASTLENET TECHNOLOGY, INC.
00-30-55 Hitachi Semiconductor America,
00-30-56 Beck IPC GmbH
00-30-57 E-Tel Corporation
00-30-58 API MOTION
00-30-59 DIGITAL-LOGIC AG
00-30-5A TELGEN CORPORATION
00-30-5B MODULE DEPARTMENT
00-30-5C SMAR Laboratories Corp.
00-30-5D DIGITRA SYSTEMS, INC.
00-30-5E Abelko Innovation
00-30-5F IMACON APS
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00-30-61 MobyTEL
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00-30-63 SANTERA SYSTEMS, INC.
00-30-64 ADLINK TECHNOLOGY, INC.
00-30-65 APPLE COMPUTER, INC.
00-30-66 DIGITAL WIRELESS CORPORATION
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00-30-68 CYBERNETICS TECH. CO., LTD.
00-30-69 IMPACCT TECHNOLOGY CORP.
00-30-6A PENTA MEDIA CO., LTD.
00-30-6B CMOS SYSTEMS, INC.
00-30-6C Hitex Holding GmbH
00-30-6D LUCENT TECHNOLOGIES
00-30-6E HEWLETT PACKARD
00-30-6F SEYEON TECH. CO., LTD.
00-30-70 1Net Corporation
00-30-71 Cisco Systems, Inc.
00-30-72 INTELLIBYTE INC.
00-30-73 International Microsystems, In
00-30-74 EQUIINET LTD.
00-30-75 ADTECH
00-30-76 N-CUBED.NET
00-30-77 ONPREM NETWORKS
00-30-78 Cisco Systems, Inc.
00-30-79 CQOS, INC.
00-30-7A Advanced Technology & Systems
00-30-7B Cisco Systems, Inc.
00-30-7C ADID SA
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00-30-80 CISCO SYSTEMS, INC.
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00-30-82 TAIHAN ELECTRIC WIRE CO., LTD.
00-30-83 VEDIA TECHNOLOGY, LTD.
00-30-84 ALLIED TELESYN INTERNAIONAL
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00-30-87 VEGA GRIESHABER KG
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00-30-90 CYRA TECHNOLOGIES, INC.
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00-30-92 ModuNORM GmbH
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00-30-A1 OPTI TECH CO., LTD.
00-30-A2 Lightner Engineering
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00-30-A4 Woodwind Communications System
00-30-A5 ACTIVE POWER
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00-30-A7 SCHWEITZER ENGINEERING
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00-30-CE Zaffire
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00-30-D3 Agilent Technologies
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00-30-D6 MSC VERTRIEBS GMBH
00-30-D7 Innovative Systems, L.L.C.
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00-30-D9 DATACORE SOFTWARE CORP.
00-30-DA COMTREND CO.
00-30-DB SEDERTA INC.
00-30-DC RIGHTECH CORPORATION
00-30-DD INDIGITA CORPORATION
00-30-DE WAGO Kontakttechnik GmbH
00-30-DF KB/TEL TELECOMUNICACIONES
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00-40-07 TELMAT INFORMATIQUE
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00-40-0F DATACOM TECHNOLOGIES
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00-40-18 ADOBE SYSTEMS, INC.
00-40-19 AEON SYSTEMS, INC.
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00-40-1B PRINTER SYSTEMS CORP.
00-40-1C AST RESEARCH, INC.
00-40-1D INVISIBLE SOFTWARE, INC.
00-40-1E ICC
00-40-1F COLORGRAPH LTD
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00-40-21 RASTER GRAPHICS
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00-40-23 LOGIC CORPORATION
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00-40-25 MOLECULAR DYNAMICS
00-40-26 MELCO, INC.
00-40-27 SMC MASSACHUSETTS, INC.
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00-40-2A CANOGA-PERKINS
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00-40-2F XLNT DESIGNS INC.
00-40-30 GK COMPUTER
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00-40-32 DIGITAL COMMUNICATIONS
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00-40-34 BUSTEK CORPORATION
00-40-35 OPCOM
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00-40-37 SEA-ILAN, INC.
00-40-38 TALENT ELECTRIC INCORPORATED
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00-40-3A IMPACT TECHNOLOGIES
00-40-3B SYNERJET INTERNATIONAL CORP.
00-40-3C FORKS, INC.
00-40-3D TERADATA
00-40-3E RASTER OPS CORPORATION
00-40-3F SSANGYONG COMPUTER SYSTEMS
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00-40-41 FUJIKURA LTD.
00-40-42 N.A.T. GMBH
00-40-43 NOKIA TELECOMMUNICATIONS
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00-40-45 TWINHEAD CORPORATION
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00-40-47 WIND RIVER SYSTEMS
00-40-48 SMD INFORMATICA S.A.
00-40-49 TEGIMENTA AG
00-40-4A WEST AUSTRALIAN DEPARTMENT
00-40-4B MAPLE COMPUTER SYSTEMS
00-40-4C HYPERTEC PTY LTD.
00-40-4D TELECOMMUNICATIONS TECHNIQUES
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00-40-50 IRONICS, INCORPORATED
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00-40-56 MCM JAPAN LTD.
00-40-57 LOCKHEED - SANDERS
00-40-58 KRONOS, INC.
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00-40-62 E-SYSTEMS, INC./GARLAND DIV.
00-40-63 VIA TECHNOLOGIES, INC.
00-40-64 KLA INSTRUMENTS CORPORATION
00-40-65 GTE SPACENET
00-40-66 HITACHI CABLE, LTD.
00-40-67 OMNIBYTE CORPORATION
00-40-68 EXTENDED SYSTEMS
00-40-69 LEMCOM SYSTEMS, INC.
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00-40-6B SYSGEN
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00-40-6E COROLLARY, INC.
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00-40-70 INTERWARE CO., LTD.
00-40-71 ATM COMPUTER GMBH
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00-40-73 BASS ASSOCIATES
00-40-74 CABLE AND WIRELESS
00-40-75 M-TRADE (UK) LTD
00-40-76 AMP INCORPORATED
00-40-77 MAXTON TECHNOLOGY CORPORATION
00-40-78 WEARNES AUTOMATION PTE LTD
00-40-79 JUKO MANUFACTURE COMPANY, LTD.
00-40-7A SOCIETE D'EXPLOITATION DU CNIT
00-40-7B SCIENTIFIC ATLANTA
00-40-7C QUME CORPORATION
00-40-7D EXTENSION TECHNOLOGY CORP.
00-40-7E EVERGREEN SYSTEMS, INC.
00-40-7F AGEMA INFRARED SYSTEMS AB
00-40-80 ATHENIX CORPORATION
00-40-81 MANNESMANN SCANGRAPHIC GMBH
00-40-82 LABORATORY EQUIPMENT CORP.
00-40-83 TDA INDUSTRIA DE PRODUTOS
00-40-84 HONEYWELL INC.
00-40-85 SAAB INSTRUMENTS AB
00-40-86 MICHELS & KLEBERHOFF COMPUTER
00-40-87 UBITREX CORPORATION
00-40-88 MOBIUS TECHNOLOGIES, INC.
00-40-89 MEIDENSHA CORPORATION
00-40-8A TPS TELEPROCESSING SYS. GMBH
00-40-8B RAYLAN CORPORATION
00-40-8C AXIS COMMUNICATIONS AB
00-40-8D THE GOODYEAR TIRE & RUBBER CO.
00-40-8E DIGILOG, INC.
00-40-8F WM-DATA MINFO AB
00-40-90 ANSEL COMMUNICATIONS
00-40-91 PROCOMP INDUSTRIA ELETRONICA
00-40-92 ASP COMPUTER PRODUCTS, INC.
00-40-93 PAXDATA NETWORKS LTD.
00-40-94 SHOGRAPHICS, INC.
00-40-95 R.P.T. INTERGROUPS INT'L LTD.
00-40-96 Aironet Wireless Communication
00-40-97 DATEX DIVISION OF
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00-40-99 NEWGEN SYSTEMS CORP.
00-40-9A NETWORK EXPRESS, INC.
00-40-9B HAL COMPUTER SYSTEMS INC.
00-40-9C TRANSWARE
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00-40-9E CONCURRENT TECHNOLOGIES LTD.
00-40-9F LANCAST/CASAT TECHNOLOGY, INC.
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00-40-A2 KINGSTAR TECHNOLOGY INC.
00-40-A3 MICROUNITY SYSTEMS ENGINEERING
00-40-A4 ROSE ELECTRONICS
00-40-A5 CLINICOMP INTL.
00-40-A6 CRAY RESEARCH INC.
00-40-A7 ITAUTEC PHILCO S.A.
00-40-A8 IMF INTERNATIONAL LTD.
00-40-A9 DATACOM INC.
00-40-AA VALMET AUTOMATION INC.
00-40-AB ROLAND DG CORPORATION
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00-40-AD SMA REGELSYSTEME GMBH
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00-40-B0 BYTEX CORPORATION, ENGINEERING
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00-40-B3 PAR MICROSYSTEMS CORPORATION
00-40-B4 NEXTCOM K.K.
00-40-B5 VIDEO TECHNOLOGY COMPUTERS LTD
00-40-B6 COMPUTERM CORPORATION
00-40-B7 STEALTH COMPUTER SYSTEMS
00-40-B8 IDEA ASSOCIATES
00-40-B9 MACQ ELECTRONIQUE SA
00-40-BA ALLIANT COMPUTER SYSTEMS CORP.
00-40-BB GOLDSTAR CABLE CO., LTD.
00-40-BC ALGORITHMICS LTD.
00-40-BD STARLIGHT NETWORKS, INC.
00-40-BE BOEING DEFENSE & SPACE
00-40-BF CHANNEL SYSTEMS INTERN'L INC.
00-40-C0 VISTA CONTROLS CORPORATION
00-40-C1 BIZERBA-WERKE WILHEIM KRAUT
00-40-C2 APPLIED COMPUTING DEVICES
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00-40-C5 MICOM COMMUNICATIONS INC.
00-40-C6 FIBERNET RESEARCH, INC.
00-40-C7 RUBY TECH CORPORATION
00-40-C8 MILAN TECHNOLOGY CORPORATION
00-40-C9 NCUBE
00-40-CA FIRST INTERNAT'L COMPUTER, INC
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00-40-CC SILCOM MANUF'G TECHNOLOGY INC.
00-40-CD TERA MICROSYSTEMS, INC.
00-40-CE NET-SOURCE, INC.
00-40-CF STRAWBERRY TREE, INC.
00-40-D0 MITAC INTERNATIONAL CORP.
00-40-D1 FUKUDA DENSHI CO., LTD.
00-40-D2 PAGINE CORPORATION
00-40-D3 KIMPSION INTERNATIONAL CORP.
00-40-D4 GAGE TALKER CORP.
00-40-D5 SARTORIUS AG
00-40-D6 LOCAMATION B.V.
00-40-D7 STUDIO GEN INC.
00-40-D8 OCEAN OFFICE AUTOMATION LTD.
00-40-D9 AMERICAN MEGATRENDS INC.
00-40-DA TELSPEC LTD
00-40-DB ADVANCED TECHNICAL SOLUTIONS
00-40-DC TRITEC ELECTRONIC GMBH
00-40-DD HONG TECHNOLOGIES
00-40-DE ELETTRONICA SAN GIORGIO
00-40-DF DIGALOG SYSTEMS, INC.
00-40-E0 ATOMWIDE LTD.
00-40-E1 MARNER INTERNATIONAL, INC.
00-40-E2 MESA RIDGE TECHNOLOGIES, INC.
00-40-E3 QUIN SYSTEMS LTD
00-40-E4 E-M TECHNOLOGY, INC.
00-40-E5 SYBUS CORPORATION
00-40-E6 C.A.E.N.
00-40-E7 ARNOS INSTRUMENTS & COMPUTER
00-40-E8 CHARLES RIVER DATA SYSTEMS,INC
00-40-E9 ACCORD SYSTEMS, INC.
00-40-EA PLAIN TREE SYSTEMS INC
00-40-EB MARTIN MARIETTA CORPORATION
00-40-EC MIKASA SYSTEM ENGINEERING
00-40-ED NETWORK CONTROLS INT'NATL INC.
00-40-EE OPTIMEM
00-40-EF HYPERCOM, INC.
00-40-F0 MICRO SYSTEMS, INC.
00-40-F1 CHUO ELECTRONICS CO., LTD.
00-40-F2 JANICH & KLASS COMPUTERTECHNIK
00-40-F3 NETCOR
00-40-F4 CAMEO COMMUNICATIONS, INC.
00-40-F5 OEM ENGINES
00-40-F6 KATRON COMPUTERS INC.
00-40-F7 POLAROID MEDICAL IMAGING SYS.
00-40-F8 SYSTEMHAUS DISCOM
00-40-F9 COMBINET
00-40-FA MICROBOARDS, INC.
00-40-FB CASCADE COMMUNICATIONS CORP.
00-40-FC IBR COMPUTER TECHNIK GMBH
00-40-FD LXE
00-40-FE SYMPLEX COMMUNICATIONS
00-40-FF TELEBIT CORPORATION
00-50-00 NEXO COMMUNICATIONS, INC.
00-50-01 YAMASHITA SYSTEMS CORP.
00-50-02 OMNISEC AG
00-50-03 GRETAG MACBETH AG
00-50-04 3COM CORPORATION
00-50-06 TAC AB
00-50-07 SIEMENS TELECOMMUNICATION
00-50-08 TIVA MICROCOMPUTER CORP. (TMC)
00-50-09 PHILIPS BROADBAND NETWORKS
00-50-0A IRIS TECHNOLOGIES, INC.
00-50-0B CISCO SYSTEMS, INC.
00-50-0C ETEK LABS, INC.
00-50-0D SATORI ELECTORIC CO., LTD.
00-50-0E CHROMATIS NETWORKS,INC.
00-50-0F CISCO SYSTEMS, INC.
00-50-10 NOVANET LEARNING, INC.
00-50-12 CBL - GMBH
00-50-13 CHAPARRAL TECHNOLOGIES, INC.
00-50-14 CISCO SYSTEMS, INC.
00-50-15 BRIGHT STAR ENGINEERING
00-50-16 SST/WOODHEAD INDUSTRIES
00-50-17 RSR S.R.L.
00-50-18 ADVANCED MULTIMEDIA INTERNET
00-50-19 SPRING TIDE NETWORKS, INC.
00-50-1A UISIQN
00-50-1B ABL CANADA, INC.
00-50-1C JATOM SYSTEMS, INC.
00-50-1E MIRANDA TECHNOLOGIES, INC.
00-50-1F MRG SYSTEMS, LTD.
00-50-20 MEDIASTAR CO., LTD.
00-50-21 EIS INTERNATIONAL, INC.
00-50-22 ZONET TECHNOLOGY, INC.
00-50-23 PG DESIGN ELECTRONICS, INC.
00-50-24 NAVIC SYSTEMS, INC.
00-50-26 COSYSTEMS, INC.
00-50-27 GENICOM CORPORATION
00-50-28 AVAL COMMUNICATIONS
00-50-29 1394 PRINTER WORKING GROUP
00-50-2A CISCO SYSTEMS, INC.
00-50-2B GENRAD LTD.
00-50-2C SOYO COMPUTER, INC.
00-50-2D ACCEL, INC.
00-50-2E CAMBEX CORPORATION
00-50-2F TOLLBRIDGE TECHNOLOGIES, INC.
00-50-30 FUTURE PLUS SYSTEMS
00-50-31 AEROFLEX LABORATORIES, INC.
00-50-32 PICAZO COMMUNICATIONS, INC.
00-50-33 MAYAN NETWORKS
00-50-36 NETCAM, LTD.
00-50-37 KOGA ELECTRONICS CO.
00-50-38 DAIN TELECOM CO., LTD.
00-50-39 MARINER NETWORKS
00-50-3A DATONG ELECTRONICS LTD.
00-50-3B MEDIAFIRE CORPORATION
00-50-3C TSINGHUA NOVEL ELECTRONICS
00-50-3E CISCO SYSTEMS, INC.
00-50-3F ANCHOR GAMES
00-50-40 EMWARE, INC.
00-50-41 CTX OPTO ELECTRONIC CORP.
00-50-42 SCI MANUFACTURING
00-50-43 MARVELL SEMICONDUCTOR, INC.
00-50-44 ASACA CORPORATION
00-50-45 RIOWORKS SOLUTIONS, INC.
00-50-46 MENICX INTERNATIONAL CO., LTD.
00-50-48 INFOLIBRIA
00-50-49 ELLACOYA NETWORKS, INC.
00-50-4A ELTECO A.S.
00-50-4B BARCO N.V. BCS
00-50-4C GALIL MOTION CONTROL, INC.
00-50-4D TOKYO ELECTRON DEVICE LTD.
00-50-4E SIERRA MONITOR CORP.
00-50-4F OLENCOM ELECTRONICS
00-50-50 CISCO SYSTEMS, INC.
00-50-51 IWATSU ELECTRIC CO., LTD.
00-50-52 TIARA NETWORKS, INC.
00-50-53 CISCO SYSTEMS, INC.
00-50-54 CISCO SYSTEMS, INC.
00-50-55 DOMS A/S
00-50-56 VMWARE, INC.
00-50-57 BROADBAND ACCESS SYSTEMS
00-50-58 VEGASTREAM LIMITED
00-50-59 SUITE TECHNOLOGY SYSTEMS
00-50-5A NETWORK ALCHEMY, INC.
00-50-5B KAWASAKI LSI U.S.A., INC.
00-50-5C TUNDO CORPORATION
00-50-5E DIGITEK MICROLOGIC S.A.
00-50-5F BRAND INNOVATORS
00-50-60 TANDBERG TELECOM AS
00-50-62 KOUWELL ELECTRONICS CORP. **
00-50-63 OY COMSEL SYSTEM AB
00-50-64 CAE ELECTRONICS
00-50-65 DENSEI-LAMBAD Co., Ltd.
00-50-66 ATECOM GMBH ADVANCED
00-50-67 AEROCOMM, INC.
00-50-68 ELECTRONIC INDUSTRIES
00-50-69 PIXSTREAM INCORPORATED
00-50-6A EDEVA, INC.
00-50-6B SPX-ATEG
00-50-6C G & L BEIJER ELECTRONICS AB
00-50-6D VIDEOJET SYSTEMS
00-50-6E CORDER ENGINEERING CORPORATION
00-50-6F G-CONNECT
00-50-70 CHAINTECH COMPUTER CO., LTD.
00-50-71 AIWA CO., LTD.
00-50-72 CORVIS CORPORATION
00-50-73 CISCO SYSTEMS, INC.
00-50-74 ADVANCED HI-TECH CORP.
00-50-75 KESTREL SOLUTIONS
00-50-76 IBM
00-50-77 PROLIFIC TECHNOLOGY, INC.
00-50-78 MEGATON HOUSE, LTD.
00-50-7A XPEED, INC.
00-50-7B MERLOT COMMUNICATIONS
00-50-7C VIDEOCON AG
00-50-7D IFP
00-50-7E NEWER TECHNOLOGY
00-50-7F DRAYTEK CORP.
00-50-80 CISCO SYSTEMS, INC.
00-50-81 MURATA MACHINERY, LTD.
00-50-82 FORESSON CORPORATION
00-50-83 GILBARCO, INC.
00-50-84 ATL PRODUCTS
00-50-86 TELKOM SA, LTD.
00-50-87 TERASAKI ELECTRIC CO., LTD.
00-50-88 AMANO CORPORATION
00-50-89 SAFETY MANAGEMENT SYSTEMS
00-50-8B COMPAQ COMPUTER CORPORATION
00-50-8C RSI SYSTEMS
00-50-8D ABIT COMPUTER CORPORATION
00-50-8E OPTIMATION, INC.
00-50-8F ASITA TECHNOLOGIES INT'L LTD.
00-50-90 DCTRI
00-50-91 NETACCESS, INC.
00-50-92 RIGAKU INDUSTRIAL CORPORATION
00-50-93 BOEING
00-50-94 PACE MICRO TECHNOLOGY PLC
00-50-95 PERACOM NETWORKS
00-50-96 SALIX TECHNOLOGIES, INC.
00-50-97 MMC-EMBEDDED
00-50-98 GLOBALOOP, LTD.
00-50-99 3COM EUROPE, LTD.
00-50-9A TAG ELECTRONIC SYSTEMS
00-50-9B SWITCHCORE AB
00-50-9C BETA RESEARCH
00-50-9D THE INDUSTREE B.V.
00-50-9E LES TECHNOLOGIES
00-50-9F HORIZON COMPUTER
00-50-A0 DELTA COMPUTER SYSTEMS, INC.
00-50-A1 CARLO GAVAZZI, INC.
00-50-A2 CISCO SYSTEMS, INC.
00-50-A3 TRANSMEDIA COMMUNICATIONS, INC
00-50-A4 IO TECH, INC.
00-50-A5 CAPITOL BUSINESS SYSTEMS, LTD.
00-50-A6 OPTRONICS
00-50-A7 CISCO SYSTEMS, INC.
00-50-A8 OPENCON SYSTEMS, INC.
00-50-A9 MOLDAT WIRELESS TECHNOLGIES
00-50-AA KONICA CORPORATION
00-50-AB NALTEC, INC.
00-50-AC MAPLE COMPUTER CORPORATION
00-50-AD COMMUNIQUE WIRELESS CORP.
00-50-AE IWAKI ELECTRONICS CO., LTD.
00-50-AF INTERGON, INC.
00-50-B0 TECHNOLOGY ATLANTA CORPORATION
00-50-B1 GIDDINGS & LEWIS
00-50-B2 BRODEL AUTOMATION
00-50-B3 VOICEBOARD CORPORATION
00-50-B4 SATCHWELL CONTROL SYSTEMS, LTD
00-50-B5 FICHET-BAUCHE
00-50-B6 GOOD WAY IND. CO., LTD.
00-50-B7 BOSER TECHNOLOGY CO., LTD.
00-50-B8 INOVA COMPUTERS GMBH & CO. KG
00-50-B9 XITRON TECHNOLOGIES, INC.
00-50-BA D-LINK
00-50-BB CMS TECHNOLOGIES
00-50-BC HAMMER STORAGE SOLUTIONS
00-50-BD CISCO SYSTEMS, INC.
00-50-BE FAST MULTIMEDIA AG
00-50-BF MOTOTECH INC.
00-50-C0 GATAN, INC.
00-50-C1 GEMFLEX NETWORKS, LTD.
00-50-C2 IEEE REGISTRATION AUTHORITY
00-50-C4 IMD
00-50-C5 ADS TECHNOLOGIES, INC.
00-50-C6 LOOP TELECOMMUNICATION
00-50-C8 ADDONICS COMMUNICATIONS, INC.
00-50-C9 MASPRO DENKOH CORP.
00-50-CA NET TO NET TECHNOLOGIES
00-50-CB JETTER
00-50-CC XYRATEX
00-50-CD DIGIANSWER A/S

 


00-50-CE LG INTERNATIONAL CORP.
00-50-CF VANLINK COMMUNICATION
00-50-D0 MINERVA SYSTEMS
00-50-D1 CISCO SYSTEMS, INC.
00-50-D2 CANADIAN MARCONI COMPANY
00-50-D3 DIGITAL AUDIO
00-50-D4 JOOHONG INFORMATION &
00-50-D5 AD SYSTEMS CORP.
00-50-D6 ATLAS COPCO TOOLS AB
00-50-D7 TELSTRAT
00-50-D8 UNICORN COMPUTER CORP.
00-50-D9 ENGETRON-ENGENHARIA ELETRONICA
00-50-DA 3COM CORPORATION
00-50-DB CONTEMPORARY CONTROL
00-50-DC TAS TELEFONBAU A. SCHWABE
00-50-DD SERRA SOLDADURA, S.A.
00-50-DE SIGNUM SYSTEMS CORP.
00-50-DF AIRFIBER, INC.
00-50-E1 NS TECH ELECTRONICS SDN BHD
00-50-E2 CISCO SYSTEMS, INC.
00-50-E3 TELEGATE
00-50-E4 APPLE COMPUTER, INC.
00-50-E6 HAKUSAN CORPORATION
00-50-E7 PARADISE INNOVATIONS (ASIA)
00-50-E8 NOMADIX INC.
00-50-EA XEL COMMUNICTIONS, INC.
00-50-EB ALPHA-TOP CORPORATION
00-50-EC OLICOM A/S
00-50-ED ANDA NETWORKS
00-50-EE TEK DIGITEL CORPORATION
00-50-EF SPE SYSTEMHAUS GMBH
00-50-F0 CISCO SYSTEMS, INC.
00-50-F1 LIBIT SIGNAL PROCESSING, LTD.
00-50-F2 MICROSOFT CORP.
00-50-F3 GLOBAL NET INFORMATION CO.,LTD
00-50-F4 SIGMATEK GMBH & CO. KG
00-50-F6 PAN-INTERNATIONAL
00-50-F7 VENTURE MANUFACTURING
00-50-F8 ENTREGA TECHNOLOGIES, INC.
00-50-FA OXTEL, LTD.
00-50-FB VSK ELECTRONICS
00-50-FC EDIMAX TECHNOLOGY CO., LTD.
00-50-FD ISIONCOMM CO., LTD.
00-50-FE PCTVNET ASA
00-50-FF HAKKO ELECTRONICS CO., LTD.
00-60-00 XYCOM INC.
00-60-01 INNOSYS, INC.
00-60-02 SCREEN SUBTITLING SYSTEMS, LTD
00-60-03 TERAOKA WEIGH SYSTEM PTE, LTD.
00-60-04 COMPUTADORES MODULARES SA
00-60-05 FEEDBACK DATA LTD.
00-60-06 SOTEC CO., LTD
00-60-07 ACRES GAMING, INC.
00-60-08 3COM CORPORATION
00-60-09 CISCO SYSTEMS, INC.
00-60-0A SORD COMPUTER CORPORATION
00-60-0B LOGWARE GMBH
00-60-0C APPLIED DATA SYSTEMS, INC.
00-60-0D MICRODESIGN GMBH
00-60-0E WAVENET INTERNATIONAL, INC.
00-60-0F WESTELL, INC.
00-60-10 NETWORK MACHINES, INC.
00-60-11 CRYSTAL SEMICONDUCTOR CORP.
00-60-12 POWER COMPUTING CORPORATION
00-60-13 NETSTAL MASCHINEN AG
00-60-14 EDEC CO., LTD.
00-60-15 NET2NET CORPORATION
00-60-16 CLARIION
00-60-17 TOKIMEC INC.
00-60-18 STELLAR ONE CORPORATION
00-60-19 BOEHRINGER MANNHEIM CORP.
00-60-1A KEITHLEY INSTRUMENTS
00-60-1B MESA ELECTRONICS
00-60-1C TELXON CORPORATION
00-60-1D LUCENT TECHNOLOGIES
00-60-1E SOFTLAB, INC.
00-60-1F STALLION TECHNOLOGIES
00-60-20 PIVOTAL NETWORKING, INC.
00-60-21 DSC CORPORATION
00-60-22 VICOM SYSTEMS, INC.
00-60-23 PERICOM SEMICONDUCTOR CORP.
00-60-24 GRADIENT TECHNOLOGIES, INC.
00-60-25 ACTIVE IMAGING PLC
00-60-26 VIKING COMPONENTS, INC.
00-60-27 Superior Modular Products
00-60-28 MACROVISION CORPORATION
00-60-29 CARY PERIPHERALS INC.
00-60-2A SYMICRON COMPUTER
00-60-2B PEAK AUDIO
00-60-2C LINX DATA TERMINALS, INC.
00-60-2D ALERTON TECHNOLOGIES, INC.
00-60-2E CYCLADES CORPORATION
00-60-2F CISCO SYSTEMS, INC.
00-60-30 VILLAGE TRONIC
00-60-31 HRK SYSTEMS
00-60-32 I-CUBE, INC.
00-60-33 ACUITY IMAGING, INC.
00-60-34 ROBERT BOSCH GMBH
00-60-35 DALLAS SEMICONDUCTOR, INC.
00-60-36 AUSTRIAN RESEARCH CENTER
00-60-37 PHILIPS SEMICONDUCTORS
00-60-38 Nortel Networks
00-60-39 SANCOM TECHNOLOGY, INC.
00-60-3A QUICK CONTROLS LTD.
00-60-3B AMTEC SPA
00-60-3C HAGIWARA SYS-COM CO., LTD.
00-60-3D 3CX
00-60-3E CISCO SYSTEMS, INC.
00-60-3F PATAPSCO DESIGNS
00-60-40 NETRO CORP.
00-60-41 3A INTERNATIONAL, INC.
00-60-42 TKS (USA), INC.
00-60-43 COMSOFT SYSTEMS, INC.
00-60-44 LITTON/POLY-SCIENTIFIC
00-60-45 PATHLIGHT TECHNOLOGIES
00-60-46 VMETRO, INC.
00-60-47 CISCO SYSTEMS, INC.
00-60-48 EMC CORPORATION
00-60-49 VINA TECHNOLOGIES
00-60-4A SAIC IDEAS GROUP
00-60-4B BIODATA GMBH
00-60-4C SAT
00-60-4D MMC NETWORKS, INC.
00-60-4E CYCLE COMPUTER CORPORATION, INC.
00-60-4F SUZUKI MFG. CO., LTD.
00-60-50 INTERNIX INC.
00-60-51 QUALITY SEMICONDUCTOR
00-60-52 PERIPHERALS ENTERPRISE CO., L.
00-60-53 TOYODA MACHINE WORKS, LTD.
00-60-54 CONTROLWARE GMBH
00-60-55 CORNELL UNIVERSITY
00-60-56 NETWORK TOOLS, INC.
00-60-57 MURATA MANUFACTURING CO., LTD.
00-60-58 COPPER MOUNTAIN
00-60-59 TECHNICAL COMMUNICATIONS CORP.
00-60-5A CELCORE, INC.
00-60-5B INTRASERVER TECHNOLOGY INC.
00-60-5C CISCO SYSTEMS, INC.
00-60-5D SCANIVALVE CORP.
00-60-5E LIBERTY TECHNOLOGY NETWORKING
00-60-5F NIPPON UNISOFT CORPORATION
00-60-60 DAWNING TECHNOLOGIES, INC.
00-60-61 WHISTLE COMMUNICATIONS CORP.
00-60-62 TELESYNC, INC.
00-60-63 PSION DACOM PLC.
00-60-64 NETCOMM LIMITED
00-60-65 BERNECKER & RAINER
00-60-66 LACROIX TECHNOLGIE
00-60-67 ACER NETXUS INC.
00-60-68 EICON TECHNOLOGY CORPORATION
00-60-69 BROCADE COMMUNICATIONS SYSTEMS
00-60-6A MITSUBISHI WIRELESS COMM. INC.
00-60-6B AICHI ELECTRONICS CO.,LTD.
00-60-6C ARESCOM
00-60-6D DIGITAL EQUIPMENT CORP.
00-60-6E DAVICOM SEMICONDUCTOR, INC.
00-60-6F CLARION CORPORATION OF AMERICA
00-60-70 CISCO SYSTEMS, INC.
00-60-71 MIDAS LAB, INC.
00-60-72 VXL INSTRUMENTS, LIMITED
00-60-73 REDCREEK COMMUNICATIONS, INC.
00-60-74 QSC AUDIO PRODUCTS
00-60-75 PENTEK, INC.
00-60-76 SCHLUMBERGER TECHNOLOGIES
00-60-77 PRISA NETWORKS
00-60-78 POWER MEASUREMENT LTD.
00-60-79 WAVEPHORE NETWORKS, INC.
00-60-7A DVS GMBH
00-60-7B FORE SYSTEMS, INC.
00-60-7C WAVEACCESS, LTD.
00-60-7D SENTIENT NETWORKS INC.
00-60-7E GIGALABS, INC.
00-60-7F AURORA TECHNOLOGIES, INC.
00-60-80 MICROTRONIX DATACOM LTD.
00-60-81 TV/COM INTERNATIONAL
00-60-82 NOVALINK TECHNOLOGIES, INC.
00-60-83 CISCO SYSTEMS, INC.
00-60-84 DIGITAL VIDEO
00-60-85 STORAGE CONCEPTS
00-60-86 LOGIC REPLACEMENT TECH. LTD.
00-60-87 KANSAI ELECTRIC CO., LTD.
00-60-88 WHITE MOUNTAIN DSP, INC.
00-60-89 XATA
00-60-8A CITADEL COMPUTER
00-60-8B CONFERTECH INTERNATIONAL
00-60-8C 3COM CORPORATION
00-60-8D UNIPULSE CORP.
00-60-8E HE ELECTRONICS, TECHNOLOGIE &
00-60-8F TEKRAM TECHNOLOGY CO., LTD.
00-60-90 ABLE COMMUNICATIONS, INC.
00-60-91 FIRST PACIFIC NETWORKS, INC.
00-60-92 MICRO/SYS, INC.
00-60-93 VARIAN
00-60-94 IBM CORP.
00-60-95 ACCU-TIME SYSTEMS, INC.
00-60-96 T.S. MICROTECH INC.
00-60-97 3COM CORPORATION
00-60-98 HT COMMUNICATIONS
00-60-99 LAN MEDIA CORPORATION
00-60-9A NJK TECHNO CO.
00-60-9B ASTRO-MED, INC.
00-60-9C PERKIN-ELMER CORPORATION
00-60-9D PMI FOOD EQUIPMENT GROUP
00-60-9E X3 - INFORMATION TECHNOLOGY
00-60-9F PHAST CORPORATION
00-60-A0 SWITCHED NETWORK
00-60-A1 VPNET
00-60-A2 NIHON UNISYS LIMITED CO.
00-60-A3 CONTINUUM TECHNOLOGY CORP.
00-60-A4 GRINAKER SYSTEM TECHNOLOGIES
00-60-A5 PERFORMANCE TELECOM CORP.
00-60-A6 PARTICLE MEASURING SYSTEMS
00-60-A7 MICROSENS GMBH & CO. KG
00-60-A8 TIDOMAT AB
00-60-A9 GESYTEC MBH
00-60-AA INTELLIGENT DEVICES INC. (IDI)
00-60-AB LARSCOM INCORPORATED
00-60-AC RESILIENCE CORPORATION
00-60-AD MEGACHIPS CORPORATION
00-60-AE TRIO INFORMATION SYSTEMS AB
00-60-AF PACIFIC MICRO DATA, INC.
00-60-B0 HEWLETT-PACKARD CO.
00-60-B1 INPUT/OUTPUT, INC.
00-60-B2 PROCESS CONTROL CORP.
00-60-B3 Z-COM, INC.
00-60-B4 GLENAYRE R&D INC.
00-60-B5 KEBA GMBH
00-60-B6 LAND COMPUTER CO., LTD.
00-60-B7 CHANNELMATIC, INC.
00-60-B8 CORELIS INC.
00-60-B9 NITSUKO CORPORATION
00-60-BA SAHARA NETWORKS, INC.
00-60-BB CABLETRON - NETLINK, INC.
00-60-BC KEUNYOUNG ELECTRONICS &
00-60-BD HUBBELL-PULSECOM
00-60-BE WEBTRONICS
00-60-BF MACRAIGOR SYSTEMS, INC.
00-60-C0 NERA AS
00-60-C1 WAVESPAN CORPORATION
00-60-C2 MPL AG
00-60-C3 NETVISION CORPORATION
00-60-C4 SOLITON SYSTEMS K.K.
00-60-C5 ANCOT CORP.
00-60-C6 DCS AG
00-60-C7 AMATI COMMUNICATIONS CORP.
00-60-C8 KUKA WELDING SYSTEMS & ROBOTS
00-60-C9 CONTROLNET, INC.
00-60-CA HARMONIC SYSTEMS INCORPORATED
00-60-CB HITACHI ZOSEN CORPORATION
00-60-CC EMTRAK, INCORPORATED
00-60-CD VIDEOSERVER, INC.
00-60-CE ACCLAIM COMMUNICATIONS
00-60-CF ALTEON NETWORKS, INC.
00-60-D0 SNMP RESEARCH INCORPORATED
00-60-D1 CASCADE COMMUNICATIONS
00-60-D2 LUCENT TECHNOLOGIES TAIWAN
00-60-D3 AT&T
00-60-D4 ELDAT COMMUNICATION LTD.
00-60-D5 MIYACHI TECHNOS CORP.
00-60-D6 NOVATEL WIRELESS TECHNOLOGIES
00-60-D7 ECOLE POLYTECHNIQUE FEDERALE
00-60-D8 ELMIC SYSTEMS, INC.
00-60-D9 TRANSYS NETWORKS INC.
00-60-DA JBM ELECTRONICS CO.
00-60-DB NTP ELEKTRONIK A/S
00-60-DC TOYO COMMUNICATION EQUIPMENT
00-60-DD MYRICOM, INC.
00-60-DE KAYSER-THREDE GMBH
00-60-DF INRANGE TECHNOLOGIES CORP.
00-60-E0 AXIOM TECHNOLOGY CO., LTD.
00-60-E1 ORCKIT COMMUNICATIONS LTD.
00-60-E2 QUEST ENGINEERING & DEV.
00-60-E3 ARBIN INSTRUMENTS
00-60-E4 COMPUSERVE, INC.
00-60-E5 FUJI AUTOMATION CO., LTD.
00-60-E6 SHOMITI SYSTEMS INCORPORATED
00-60-E7 RANDATA
00-60-E8 HITACHI COMPUTER PRODUCTS
00-60-E9 ATOP TECHNOLOGIES, INC.
00-60-EA STREAMLOGIC
00-60-EB FOURTHTRACK SYSTEMS
00-60-EC HERMARY OPTO ELECTRONICS INC.
00-60-ED RICARDO TEST AUTOMATION LTD.
00-60-EE APOLLO
00-60-EF FLYTECH TECHNOLOGY CO., LTD.
00-60-F0 JOHNSON & JOHNSON MEDICAL, INC
00-60-F1 EXP COMPUTER, INC.
00-60-F2 LASERGRAPHICS, INC.
00-60-F3 NETCOM SYSTEMS, INC.
00-60-F4 ADVANCED COMPUTER SOLUTIONS,
00-60-F5 ICON WEST, INC.
00-60-F6 NEXTEST COMMUNICATION
00-60-F7 DATAFUSION SYSTEMS
00-60-F8 LORAN INTERNATIONAL TECHN. INC
00-60-F9 DIAMOND LANE COMMUNICATIONS
00-60-FA EDUCATIONAL TECHNOLOGY
00-60-FB PACKETEER, INC.
00-60-FC CONSERVATION THROUGH
00-60-FD NETICS, INC.
00-60-FE LYNX SYSTEM DEVELOPERS, INC.
00-60-FF QUVIS, INC.
00-70-B0 M/A-COM INC. COMPANIES
00-70-B3 DATA RECALL LTD.
00-80-00 MULTITECH SYSTEMS, INC.
00-80-01 PERIPHONICS CORPORATION
00-80-02 SATELCOM (UK) LTD
00-80-03 HYTEC ELECTRONICS LTD.
00-80-04 ANTLOW COMMUNICATIONS, LTD.
00-80-05 CACTUS COMPUTER INC.
00-80-06 COMPUADD CORPORATION
00-80-07 DLOG NC-SYSTEME
00-80-08 DYNATECH COMPUTER SYSTEMS
00-80-09 JUPITER SYSTEMS, INC.
00-80-0A JAPAN COMPUTER CORP.
00-80-0B CSK CORPORATION
00-80-0C VIDECOM LIMITED
00-80-0D VOSSWINKEL F.U.
00-80-0E ATLANTIX CORPORATION
00-80-0F STANDARD MICROSYSTEMS
00-80-10 COMMODORE INTERNATIONAL
00-80-11 DIGITAL SYSTEMS INT'L. INC.
00-80-12 INTEGRATED MEASUREMENT SYSTEMS
00-80-13 THOMAS-CONRAD CORPORATION
00-80-14 ESPRIT SYSTEMS
00-80-15 SEIKO SYSTEMS, INC.
00-80-16 WANDEL AND GOLTERMANN
00-80-17 PFU LIMITED
00-80-18 KOBE STEEL, LTD.
00-80-19 DAYNA COMMUNICATIONS, INC.
00-80-1A BELL ATLANTIC
00-80-1B KODIAK TECHNOLOGY
00-80-1C NEWPORT SYSTEMS SOLUTIONS
00-80-1D INTEGRATED INFERENCE MACHINES
00-80-1E XINETRON, INC.
00-80-1F KRUPP ATLAS ELECTRONIK GMBH
00-80-20 NETWORK PRODUCTS
00-80-21 NEWBRIDGE RESEARCH CORP.
00-80-22 SCAN-OPTICS
00-80-23 INTEGRATED BUSINESS NETWORKS
00-80-24 KALPANA, INC.
00-80-25 STOLLMANN GMBH
00-80-26 NETWORK PRODUCTS CORPORATION
00-80-27 ADAPTIVE SYSTEMS, INC.
00-80-28 TRADPOST (HK) LTD
00-80-29 EAGLE TECHNOLOGY, INC.
00-80-2A TEST SYSTEMS & SIMULATIONS INC
00-80-2B INTEGRATED MARKETING CO
00-80-2C THE SAGE GROUP PLC
00-80-2D XYLOGICS INC
00-80-2E CASTLE ROCK COMPUTING
00-80-2F NATIONAL INSTRUMENTS CORP.
00-80-30 NEXUS ELECTRONICS
00-80-31 BASYS, CORP.
00-80-32 ACCESS CO., LTD.
00-80-33 FORMATION, INC.
00-80-34 SMT GOUPIL
00-80-35 TECHNOLOGY WORKS, INC.
00-80-36 REFLEX MANUFACTURING SYSTEMS
00-80-37 Ericsson Group
00-80-38 DATA RESEARCH & APPLICATIONS
00-80-39 ALCATEL STC AUSTRALIA
00-80-3A VARITYPER, INC.
00-80-3B APT COMMUNICATIONS, INC.
00-80-3C TVS ELECTRONICS LTD
00-80-3D SURIGIKEN CO., LTD.
00-80-3E SYNERNETICS
00-80-3F TATUNG COMPANY
00-80-40 JOHN FLUKE MANUFACTURING CO.
00-80-41 VEB KOMBINAT ROBOTRON
00-80-42 FORCE COMPUTERS
00-80-43 NETWORLD, INC.
00-80-44 SYSTECH COMPUTER CORP.
00-80-45 MATSUSHITA ELECTRIC IND. CO
00-80-46 UNIVERSITY OF TORONTO
00-80-47 IN-NET CORP.
00-80-48 COMPEX INCORPORATED
00-80-49 NISSIN ELECTRIC CO., LTD.
00-80-4A PRO-LOG
00-80-4B EAGLE TECHNOLOGIES PTY.LTD.
00-80-4C CONTEC CO., LTD.
00-80-4D CYCLONE MICROSYSTEMS, INC.
00-80-4E APEX COMPUTER COMPANY
00-80-4F DAIKIN INDUSTRIES, LTD.
00-80-50 ZIATECH CORPORATION
00-80-51 FIBERMUX
00-80-52 TECHNICALLY ELITE CONCEPTS
00-80-53 INTELLICOM, INC.
00-80-54 FRONTIER TECHNOLOGIES CORP.
00-80-55 FERMILAB
00-80-56 SPHINX ELEKTRONIK GMBH
00-80-57 ADSOFT, LTD.
00-80-58 PRINTER SYSTEMS CORPORATION
00-80-59 STANLEY ELECTRIC CO., LTD
00-80-5A TULIP COMPUTERS INTERNAT'L B.V
00-80-5B CONDOR SYSTEMS, INC.
00-80-5C AGILIS CORPORATION
00-80-5D CANSTAR
00-80-5E LSI LOGIC CORPORATION
00-80-5F COMPAQ COMPUTER CORPORATION
00-80-60 NETWORK INTERFACE CORPORATION
00-80-61 LITTON SYSTEMS, INC.
00-80-62 INTERFACE CO.
00-80-63 RICHARD HIRSCHMANN GMBH & CO.
00-80-64 WYSE TECHNOLOGY
00-80-65 CYBERGRAPHIC SYSTEMS PTY LTD.
00-80-66 ARCOM CONTROL SYSTEMS, LTD.
00-80-67 SQUARE D COMPANY
00-80-68 YAMATECH SCIENTIFIC LTD.
00-80-69 COMPUTONE SYSTEMS
00-80-6A ERI (EMPAC RESEARCH INC.)
00-80-6B SCHMID TELECOMMUNICATION
00-80-6C CEGELEC PROJECTS LTD
00-80-6D CENTURY SYSTEMS CORP.
00-80-6E NIPPON STEEL CORPORATION
00-80-6F ONELAN LTD.
00-80-70 COMPUTADORAS MICRON
00-80-71 SAI TECHNOLOGY
00-80-72 MICROPLEX SYSTEMS LTD.
00-80-73 DWB ASSOCIATES
00-80-74 FISHER CONTROLS
00-80-75 PARSYTEC GMBH
00-80-76 MCNC
00-80-77 BROTHER INDUSTRIES, LTD.
00-80-78 PRACTICAL PERIPHERALS, INC.
00-80-79 MICROBUS DESIGNS LTD.
00-80-7A AITECH SYSTEMS LTD.
00-80-7B ARTEL COMMUNICATIONS CORP.
00-80-7C FIBERCOM, INC.
00-80-7D EQUINOX SYSTEMS INC.
00-80-7E SOUTHERN PACIFIC LTD.
00-80-7F DY-4 INCORPORATED
00-80-80 DATAMEDIA CORPORATION
00-80-81 KENDALL SQUARE RESEARCH CORP.
00-80-82 PEP MODULAR COMPUTERS GMBH
00-80-83 AMDAHL
00-80-84 THE CLOUD INC.
00-80-85 H-THREE SYSTEMS CORPORATION
00-80-86 COMPUTER GENERATION INC.
00-80-87 OKI ELECTRIC INDUSTRY CO., LTD
00-80-88 VICTOR COMPANY OF JAPAN, LTD.
00-80-89 TECNETICS (PTY) LTD.
00-80-8A SUMMIT MICROSYSTEMS CORP.
00-80-8B DACOLL LIMITED
00-80-8C FRONTIER SOFTWARE DEVELOPMENT
00-80-8D WESTCOAST TECHNOLOGY B.V.
00-80-8E RADSTONE TECHNOLOGY
00-80-8F C. ITOH ELECTRONICS, INC.
00-80-90 MICROTEK INTERNATIONAL, INC.
00-80-91 TOKYO ELECTRIC CO.,LTD
00-80-92 JAPAN COMPUTER INDUSTRY, INC.
00-80-93 XYRON CORPORATION
00-80-94 ALFA LAVAL AUTOMATION AB
00-80-95 BASIC MERTON HANDELSGES.M.B.H.
00-80-96 HUMAN DESIGNED SYSTEMS, INC.
00-80-97 CENTRALP AUTOMATISMES
00-80-98 TDK CORPORATION
00-80-99 KLOCKNER MOELLER IPC
00-80-9A NOVUS NETWORKS LTD
00-80-9B JUSTSYSTEM CORPORATION
00-80-9C LUXCOM, INC.
00-80-9D Commscraft Ltd.
00-80-9E DATUS GMBH
00-80-9F ALCATEL BUSINESS SYSTEMS
00-80-A0 EDISA HEWLETT PACKARD S/A
00-80-A1 MICROTEST, INC.
00-80-A2 CREATIVE ELECTRONIC SYSTEMS
00-80-A3 LANTRONIX
00-80-A4 LIBERTY ELECTRONICS
00-80-A5 SPEED INTERNATIONAL
00-80-A6 REPUBLIC TECHNOLOGY, INC.
00-80-A7 MEASUREX CORP.
00-80-A8 VITACOM CORPORATION
00-80-A9 CLEARPOINT RESEARCH
00-80-AA MAXPEED
00-80-AB DUKANE NETWORK INTEGRATION
00-80-AC IMLOGIX, DIVISION OF GENESYS
00-80-AD CNET TECHNOLOGY, INC.
00-80-AE HUGHES NETWORK SYSTEMS
00-80-AF ALLUMER CO., LTD.
00-80-B0 ADVANCED INFORMATION
00-80-B1 SOFTCOM A/S
00-80-B2 NETWORK EQUIPMENT TECHNOLOGIES
00-80-B3 AVAL DATA CORPORATION
00-80-B4 SOPHIA SYSTEMS
00-80-B5 UNITED NETWORKS INC.
00-80-B6 THEMIS COMPUTER
00-80-B7 STELLAR COMPUTER
00-80-B8 BUG, INCORPORATED
00-80-B9 ARCHE TECHNOLIGIES INC.
00-80-BA SPECIALIX (ASIA) PTE, LTD
00-80-BB HUGHES LAN SYSTEMS
00-80-BC HITACHI ENGINEERING CO., LTD
00-80-BD THE FURUKAWA ELECTRIC CO., LTD
00-80-BE ARIES RESEARCH
00-80-BF TAKAOKA ELECTRIC MFG. CO. LTD.
00-80-C0 PENRIL DATACOMM
00-80-C1 LANEX CORPORATION
00-80-C2 IEEE 802 COMMITTEE
00-80-C3 BICC INFORMATION SYSTEMS & SVC
00-80-C4 DOCUMENT TECHNOLOGIES, INC.
00-80-C5 NOVELLCO DE MEXICO
00-80-C6 NATIONAL DATACOMM CORPORATION
00-80-C7 XIRCOM
00-80-C8 D-LINK SYSTEMS, INC.
00-80-C9 ALBERTA MICROELECTRONIC CENTRE
00-80-CA NETCOM RESEARCH INCORPORATED
00-80-CB FALCO DATA PRODUCTS
00-80-CC MICROWAVE BYPASS SYSTEMS
00-80-CD MICRONICS COMPUTER, INC.
00-80-CE BROADCAST TELEVISION SYSTEMS
00-80-CF EMBEDDED PERFORMANCE INC.
00-80-D0 COMPUTER PERIPHERALS, INC.
00-80-D1 KIMTRON CORPORATION
00-80-D2 SHINNIHONDENKO CO., LTD.
00-80-D3 SHIVA CORP.
00-80-D4 CHASE RESEARCH LTD.
00-80-D5 CADRE TECHNOLOGIES
00-80-D6 NUVOTECH, INC.
00-80-D7 FANTUM ENGINEERING, INC.
00-80-D8 NETWORK PERIPHERALS INC.
00-80-D9 EMK ELEKTRONIK
00-80-DA BRUEL & KJAER
00-80-DB GRAPHON CORPORATION
00-80-DC PICKER INTERNATIONAL
00-80-DD GMX INC/GIMIX
00-80-DE GIPSI S.A.
00-80-DF ADC CODENOLL TECHNOLOGY CORP.
00-80-E0 XTP SYSTEMS, INC.
00-80-E1 STMICROELECTRONICS
00-80-E2 T.D.I. CO., LTD.
00-80-E3 CORAL NETWORK CORPORATION
00-80-E4 NORTHWEST DIGITAL SYSTEMS, INC
00-80-E5 MYLEX CORPORATION
00-80-E6 PEER NETWORKS, INC.
00-80-E7 LYNWOOD SCIENTIFIC DEV. LTD.
00-80-E8 CUMULUS CORPORATIION
00-80-E9 MADGE NETWORKS
00-80-EA THE FIBER COMPANY
00-80-EB COMPCONTROL B.V.
00-80-EC SUPERCOMPUTING SOLUTIONS, INC.
00-80-ED IQ TECHNOLOGIES, INC.
00-80-EE THOMSON CSF
00-80-EF RATIONAL
00-80-F0 KYUSHU MATSUSHITA ELECTRIC CO.
00-80-F1 OPUS SYSTEMS
00-80-F2 RAYCOM SYSTEMS INC
00-80-F3 SUN ELECTRONICS CORP.
00-80-F4 TELEMECANIQUE ELECTRIQUE
00-80-F5 QUANTEL LTD
00-80-F6 SYNERGY MICROSYSTEMS
00-80-F7 ZENITH ELECTRONICS
00-80-F8 MIZAR, INC.
00-80-F9 HEURIKON CORPORATION
00-80-FA RWT GMBH
00-80-FB BVM LIMITED
00-80-FC AVATAR CORPORATION
00-80-FD EXSCEED CORPRATION
00-80-FE AZURE TECHNOLOGIES, INC.
00-80-FF SOC. DE TELEINFORMATIQUE RTC
00-90-00 DIAMOND MULTIMEDIA
00-90-01 NISHIMU ELCTRONICS INDUSTRIES
00-90-02 ALLGON AB
00-90-03 APLIO
00-90-04 3COM EUROPE LTD.
00-90-05 PROTECH SYSTEMS CO., LTD.
00-90-06 HAMAMATSU PHOTONICS K.K.
00-90-07 DOMEX TECHNOLOGY CORP.
00-90-08 HAN A SYSTEMS, INC.
00-90-09 i Controls, Inc.
00-90-0A PROTON ELECTRONIC INDUSTRIAL
00-90-0B LANNER ELECTRONICS, INC.
00-90-0C CISCO SYSTEMS, INC.
00-90-0D OVERLAND DATA INC.
00-90-0E HANDLINK TECHNOLOGIES, INC.
00-90-0F KAWASAKI HEAVY INDUSTRIES, LTD
00-90-10 SIMULATION LABORATORIES, INC.
00-90-11 WAVTRACE, INC.
00-90-12 GLOBESPAN SEMICONDUCTOR, INC.
00-90-13 SAMSAN CORP.
00-90-14 ROTORK INSTRUMENTS, LTD.
00-90-15 CENTIGRAM COMMUNICATIONS CORP.
00-90-16 ZAC
00-90-17 ZYPCOM, INC.
00-90-18 ITO ELECTRIC INDUSTRY CO, LTD.
00-90-19 HERMES ELECTRONICS CO., LTD.
00-90-1A UNISPHERE SOLUTIONS
00-90-1B DIGITAL CONTROLS
00-90-1C MPS SOFTWARE GMBH
00-90-1D PEC (NZ) LTD.
00-90-1E SELESTA INGEGNE RIA S.P.A.
00-90-1F ADTEC PRODUCTIONS, INC.
00-90-20 PHILIPS ANALYTICAL X-RAY B.V.
00-90-21 CISCO SYSTEMS, INC.
00-90-22 IVEX
00-90-23 ZILOG INC.
00-90-24 PIPELINKS, INC.
00-90-25 VISION SYSTEMS LTD. PTY
00-90-26 ADVANCED SWITCHING
00-90-27 INTEL CORPORATION
00-90-28 NIPPON SIGNAL CO., LTD.
00-90-29 CRYPTO AG
00-90-2A COMMUNICATION DEVICES, INC.
00-90-2B CISCO SYSTEMS, INC.
00-90-2C DATA & CONTROL EQUIPMENT LTD.
00-90-2D DATA ELECTRONICS
00-90-2E NAMCO LIMITED
00-90-2F NETCORE SYSTEMS, INC.
00-90-30 HONEYWELL-DATING
00-90-31 MYSTICOM, LTD.
00-90-32 PELCOMBE GROUP LTD.
00-90-33 INNOVAPHONE GMBH
00-90-34 IMAGIC, INC.
00-90-35 ALPHA TELECOM, INC.
00-90-36 ENS, INC.
00-90-37 ACUCOMM, INC.
00-90-38 FOUNTAIN TECHNOLOGIES, INC.
00-90-39 SHASTA NETWORKS
00-90-3A NIHON MEDIA TOOL INC.
00-90-3B TRIEMS RESEARCH LAB, INC.
00-90-3C ATLANTIC NETWORK SYSTEMS
00-90-3D BIOPAC SYSTEMS, INC.
00-90-3E N.V. PHILIPS INDUSTRIAL
00-90-3F AZTEC RADIOMEDIA
00-90-40 CASTLE NETWORKS, INC.
00-90-41 APPLIED DIGITAL ACCESS
00-90-42 ECCS
00-90-43 NICHIBEI DENSHI CO., LTD.
00-90-44 ASSURED DIGITAL, INC.
00-90-45 MARIPOSA TECHNOLOGY
00-90-46 DEXDYNE, LTD.
00-90-47 GIGA FAST E. LTD.
00-90-48 ZEAL CORPORATION
00-90-49 ENTRIDIA CORPORATION
00-90-4A CONCUR SYSTEM TECHNOLOGIES
00-90-4B GEMTEK TECHNOLOGY CO., LTD.
00-90-4C EPIGRAM, INC.
00-90-4D SPEC S.A.
00-90-4E DELEM BV
00-90-4F ABB POWER T&D COMPANY, INC.
00-90-50 TELESTE OY
00-90-51 ULTIMATE TECHNOLOGY CORP.
00-90-52 SELCOM ELETTRONICA S.R.L.
00-90-53 DAEWOO ELECTRONICS CO., LTD.
00-90-54 INNOVATIVE SEMICONDUCTORS, INC
00-90-55 PARKER HANNIFIN CORPORATION
00-90-56 TELESTREAM, INC.
00-90-57 AANETCOM, INC.
00-90-58 ULTRA ELECTRONICS LTD.
00-90-59 TELECOM DEVICE K.K.
00-90-5A DEARBORN GROUP, INC.
00-90-5B RAYMOND AND LAE ENGINEERING
00-90-5C EDMI
00-90-5D NETCOM SICHERHEITSTECHNIK GMBH
00-90-5E RAULAND-BORG CORPORATION
00-90-5F CISCO SYSTEMS, INC.
00-90-60 SYSTEM CREATE CORP.
00-90-61 PACIFIC RESEARCH & ENGINEERING
00-90-62 ICP VORTEX COMPUTERSYSTEME
00-90-63 COHERENT COMMUNICATIONS
00-90-64 THOMSON BROADCAST SYSTEMS
00-90-65 FINISAR CORPORATION
00-90-66 TROIKA DESIGN, INC.
00-90-67 WALKABOUT COMPUTERS, INC.
00-90-68 DVT CORP.
00-90-69 JUNIPER NETWORKS, INC.
00-90-6A TURNSTONE SYSTEMS, INC.
00-90-6B APPLIED RESOURCES, INC.
00-90-6C GWT GLOBAL WEIGHING
00-90-6D CISCO SYSTEMS, INC.
00-90-6E PRAXON, INC.
00-90-6F CISCO SYSTEMS, INC.
00-90-70 NEO NETWORKS, INC.
00-90-71 BADGER TECHNOLOGY, INC.
00-90-72 SIMRAD AS
00-90-73 GAIO TECHNOLOGY
00-90-74 ARGON NETWORKS, INC.
00-90-75 NEC DO BRASIL S.A.
00-90-76 FMT AIRCRAFT GATE SUPPORT
00-90-77 ADVANCED FIBRE COMMUNICATIONS
00-90-78 MER TELEMANAGEMENT
00-90-79 CLEARONE INC.
00-90-7A SPECTRALINK CORP.
00-90-7B E-TECH, INC.
00-90-7C DIGITALCAST, INC.
00-90-7D HOME WIRELESS NETWORKS
00-90-7E VETRONIX CORP.
00-90-7F WATCHGUARD TECHNOLOGIES, INC.
00-90-80 NOT LIMITED, INC.
00-90-81 ALOHA NETWORKS, INC.
00-90-82 FORCE INSTITUTE
00-90-83 TURBO COMMUNICATION, INC.
00-90-84 ATECH SYSTEM
00-90-85 GOLDEN ENTERPRISES, INC.
00-90-86 CISCO SYSTEMS, INC.
00-90-87 ITIS
00-90-88 BAXALL SECURITY LTD.
00-90-89 SOFTCOM MICROSYSTEMS, INC.
00-90-8A BAYLY COMMUNICATIONS, INC.
00-90-8B CELL COMPUTING, INC.
00-90-8C ETREND ELECTRONICS, INC.
00-90-8D VICKERS ELECTRONICS SYSTEMS
00-90-8E Nortel Networks Broadband Access
00-90-8F AUDIOCODES LTD.
00-90-90 I-BUS
00-90-91 DIGITALSCAPE, INC.
00-90-92 CISCO SYSTEMS, INC.
00-90-93 NANAO CORPORATION
00-90-94 OSPREY TECHNOLOGIES, INC.
00-90-95 UNIVERSAL AVIONICS
00-90-96 ASKEY COMPUTER CORP.
00-90-97 SYCAMORE NETWORKS
00-90-98 SBC DESIGNS, INC.
00-90-99 ALLIED TELESIS,K.K.
00-90-9A ONE WORLD SYSTEMS, INC.
00-90-9B MARKPOINT AB
00-90-9C COMBOX, LTD.
00-90-9D GSE SYSTEMS, INC.
00-90-9E DELPHI ENGINEERING GROUP
00-90-9F DIGI-DATA CORPORATION
00-90-A0 8X8 INC.
00-90-A1 FLYING PIG SYSTEMS, LTD.
00-90-A2 CYBERTAN TECHNOLOGY, INC.
00-90-A3 MEDIALINCS CO., LTD.
00-90-A4 ALTIGA NETWORKS
00-90-A5 SPECTRA LOGIC
00-90-A6 CISCO SYSTEMS, INC.
00-90-A7 CLIENTEC CORPORATION
00-90-A8 NINETILES NETWORKS LTD.
00-90-A9 WESTERN DIGITAL
00-90-AA INDIGO ACTIVE VISION
00-90-AB CISCO SYSTEMS, INC.
00-90-AC OPTIVISION, INC.
00-90-AD ASPECT ELECTRONICS, INC.
00-90-AE ITALTEL SPA
00-90-AF J. MORITA MFG. CORP.
00-90-B0 VADEM
00-90-B1 CISCO SYSTEMS, INC.
00-90-B2 AVICI SYSTEMS INC.
00-90-B3 AGRANAT SYSTEMS
00-90-B4 WILLOWBROOK TECHNOLOGIES
00-90-B5 NIKON CORPORATION
00-90-B6 FIBEX SYSTEMS
00-90-B7 DIGITAL LIGHTWAVE, INC.
00-90-B8 ROHDE & SCHWARZ GMBH & CO. KG
00-90-B9 BERAN INSTRUMENTS LTD.
00-90-BA VALID NETWORKS, INC.
00-90-BB TAINET COMMUNICATION SYSTEM
00-90-BC TELEMANN CO., LTD.
00-90-BD OMNIA COMMUNICATIONS, INC.
00-90-BE IBC/INTEGRATED BUSINESS
00-90-BF CISCO SYSTEMS, INC.
00-90-C0 K.J. LAW ENGINEERS, INC.
00-90-C1 EDA INDUSTRIES
00-90-C2 JK MICROSYSTEMS, INC.
00-90-C3 TOPIC SEMICONDUCTOR CORP.
00-90-C4 JAVELIN SYSTEMS, INC.
00-90-C5 INTERNET MAGIC, INC.
00-90-C6 OPTIM SYSTEMS, INC.
00-90-C7 ICOM INC.
00-90-C8 WAVERIDER COMMUNICATIONS
00-90-C9 PRODUCTIVITY ENHANCEMENT
00-90-CA ACCORD VIDEO
00-90-CB WIRELESS ONLINE, INC.
00-90-CC PLANEX COMMUNICATIONS, INC.
00-90-CD ENT-EMPRESA NACIONAL
00-90-CE TETRA GMBH
00-90-CF NORTEL
00-90-D0 ALCATEL BELL
00-90-D1 LEICHU ENTERPRISE CO., LTD.
00-90-D2 ARTEL VIDEO SYSTEMS
00-90-D3 GIESECKE & DEVRIENT GMBH
00-90-D4 BINDVIEW DEVELOPMENT CORP.
00-90-D5 EUPHONIX, INC.
00-90-D6 CRYSTAL GROUP
00-90-D7 NETBOOST CORP.
00-90-D8 WHITECROSS SYSTEMS
00-90-D9 CISCO SYSTEMS, INC.
00-90-DA DYNARC, INC.
00-90-DB NEXT LEVEL COMMUNICATIONS
00-90-DC TECO INFORMATION SYSTEMS
00-90-DD THE MIHARU COMMUNICATIONS
00-90-DE CARDKEY SYSTEMS, INC.
00-90-DF MITSUBISHI CHEMICAL
00-90-E0 SYSTRAN CORP.
00-90-E1 TELENA S.P.A.
00-90-E2 DISTRIBUTED PROCESSING
00-90-E3 AVEX ELECTRONICS INC.
00-90-E4 NEC AMERICA, INC.
00-90-E5 TEKNEMA, INC.
00-90-E6 ACER LABORATORIES, INC.
00-90-E7 HORSCH ELEKTRONIK AG
00-90-E8 MOXA TECHNOLOGIES CORP., LTD.
00-90-E9 JANZ COMPUTER AG
00-90-EA ALPHA TECHNOLOGIES, INC.
00-90-EB SENTRY TELECOM SYSTEMS
00-90-EC PYRESCOM
00-90-ED CENTRAL SYSTEM RESEARCH
00-90-EE PERSONAL COMMUNICATIONS
00-90-EF INTEGRIX, INC.
00-90-F0 HARMONIC LIGHTWAVES, LTD.
00-90-F1 DOT HILL SYSTEMS CORPORATION
00-90-F2 CISCO SYSTEMS, INC.
00-90-F3 ASPECT COMMUNICATIONS
00-90-F4 LIGHTNING INSTRUMENTATION
00-90-F5 CLEVO CO.
00-90-F6 ESCALATE NETWORKS, INC.
00-90-F7 NBASE COMMUNICATIONS LTD.
00-90-F8 MEDIATRIX TELECOM
00-90-F9 LEITCH
00-90-FA GIGANET, INC.
00-90-FB PORTWELL, INC.
00-90-FC NETWORK COMPUTING DEVICES
00-90-FD COPPERCOM, INC.
00-90-FE ELECOM CO., LTD. (LANEED DIV.
00-90-FF TELLUS TECHNOLOGY INC.
00-9D-8E CARDIAC RECORDERS, INC.
00-A0-00 CENTILLION NETWORKS, INC.
00-A0-01 WATKINS-JOHNSON COMPANY
00-A0-02 LEEDS & NORTHRUP AUSTRALIA
00-A0-03 STAEFA CONTROL SYSTEM
00-A0-04 NETPOWER, INC.
00-A0-05 DANIEL INSTRUMENTS, LTD.
00-A0-06 IMAGE DATA PROCESSING
00-A0-07 APEXX TECHNOLOGY, INC.
00-A0-08 NETCORP
00-A0-09 WHITETREE NETWORK
00-A0-0A R.D.C. COMMUNICATION
00-A0-0B COMPUTEX CO., LTD.
00-A0-0C KINGMAX TECHNOLOGY, INC.
00-A0-0D THE PANDA PROJECT
00-A0-0E VISUAL NETWORKS, INC.
00-A0-0F Broadband Technologies
00-A0-10 SYSLOGIC DATENTECHNIK AG
00-A0-11 MUTOH INDUSTRIES LTD.
00-A0-12 B.A.T.M. ADVANCED TECHNOLOGIES
00-A0-13 TELTREND LTD.
00-A0-14 CSIR
00-A0-15 WYLE
00-A0-16 MICROPOLIS CORP.
00-A0-17 J B M CORPORATION
00-A0-18 CREATIVE CONTROLLERS, INC.
00-A0-19 NEBULA CONSULTANTS, INC.
00-A0-1A BINAR ELEKTRONIK AB
00-A0-1B PREMISYS COMMUNICATIONS, INC.
00-A0-1C NASCENT NETWORKS CORPORATION
00-A0-1D SIXNET
00-A0-1E EST CORPORATION
00-A0-1F TRICORD SYSTEMS, INC.
00-A0-20 CITICORP/TTI
00-A0-21 GENERAL DYNAMICS-
00-A0-22 CENTRE FOR DEVELOPMENT OF
00-A0-23 APPLIED CREATIVE TECHNOLOGY,
00-A0-24 3COM CORPORATION
00-A0-25 REDCOM LABS INC.
00-A0-26 TELDAT, S.A.
00-A0-27 FIREPOWER SYSTEMS, INC.
00-A0-28 CONNER PERIPHERALS
00-A0-29 COULTER CORPORATION
00-A0-2A TRANCELL SYSTEMS
00-A0-2B TRANSITIONS RESEARCH CORP.
00-A0-2C INTERWAVE COMMUNICATIONS
00-A0-2D SKIPSTONE, INC.
00-A0-2E BRAND COMMUNICATIONS, LTD.
00-A0-2F PIRELLI CAVI
00-A0-30 CAPTOR NV/SA
00-A0-31 HAZELTINE CORPORATION, MS 1-17
00-A0-32 GES SINGAPORE PTE. LTD.
00-A0-33 IMC MESS-SYSTEME GMBH
00-A0-34 AXEL
00-A0-35 CYLINK CORPORATION
00-A0-36 APPLIED NETWORK TECHNOLOGY
00-A0-37 DATASCOPE CORPORATION
00-A0-38 EMAIL ELECTRONICS
00-A0-39 ROSS TECHNOLOGY, INC.
00-A0-3A KUBOTEK CORPORATION
00-A0-3B TOSHIN ELECTRIC CO., LTD.
00-A0-3C EG&G NUCLEAR INSTRUMENTS
00-A0-3D OPTO - 22
00-A0-3E ATM FORUM
00-A0-3F COMPUTER SOCIETY MICROPROCES'R
00-A0-40 APPLE COMPUTER
00-A0-41 LEYBOLD-INFICON
00-A0-42 SPUR PRODUCTS CORP.
00-A0-43 AMERICAN TECHNOLOGY LABS, INC.
00-A0-44 NTT INTELLIGENT TECHNOLOGY
00-A0-45 PHOENIX CONTACT GMBH & CO.
00-A0-46 SCITEX CORP. LTD.
00-A0-47 INTEGRATED FITNESS CORP.
00-A0-48 QUESTECH, LTD.
00-A0-49 DIGITECH INDUSTRIES, INC.
00-A0-4A NISSHIN ELECTRIC CO., LTD.
00-A0-4B TFL LAN INC.
00-A0-4C INNOVATIVE SYSTEMS & TECH. INC
00-A0-4D EDA INSTRUMENTS, INC.
00-A0-4E VOELKER TECHNOLOGIES, INC.
00-A0-4F AMERITEC CORP.
00-A0-50 CYPRESS SEMICONDUCTOR
00-A0-51 ANGIA COMMUNICATIONS. INC.
00-A0-52 STANILITE ELECTRONICS PTY. LTD
00-A0-53 COMPACT DEVICES, INC.
00-A0-55 LINKTECH, INC.
00-A0-56 MICROPROSS
00-A0-57 ELSA AG
00-A0-58 GLORY, LTD.
00-A0-59 HAMILTON HALLMARK
00-A0-5A KOFAX IMAGE PRODUCTS
00-A0-5B MARQUIP, INC.
00-A0-5C INVENTORY CONVERSION, INC./
00-A0-5D CS COMPUTER SYSTEME GMBH
00-A0-5E MYRIAD LOGIC INC.
00-A0-5F BTG ENGINEERING BV
00-A0-60 ACER PERIPHERALS, INC.
00-A0-61 PURITAN BENNETT
00-A0-62 AES PRODATA
00-A0-63 JRL SYSTEMS, INC.
00-A0-64 KVB/ANALECT
00-A0-65 NEXLAND, INC.
00-A0-66 ISA CO., LTD.
00-A0-67 NETWORK SERVICES GROUP
00-A0-68 BHP LIMITED
00-A0-69 TRUETIME
00-A0-6A VERILINK CORP.
00-A0-6B DMS DORSCH MIKROSYSTEM GMBH
00-A0-6C SHINDENGEN ELECTRIC MFG.
00-A0-6D MANNESMANN TALLY CORPORATION
00-A0-6E AUSTRON, INC.
00-A0-6F THE APPCON GROUP, INC.
00-A0-70 COASTCOM
00-A0-71 VIDEO LOTTERY TECHNOLOGIES,INC
00-A0-72 OVATION SYSTEMS LTD.
00-A0-73 COM21, INC.
00-A0-74 PERCEPTION TECHNOLOGY
00-A0-75 MICRON TECHNOLOGY, INC.
00-A0-76 CARDWARE LAB, INC.
00-A0-77 FUJITSU NEXION, INC.
00-A0-78 CELLACCESS TECHNOLOGY, INC.
00-A0-79 ALPS ELECTRIC (USA), INC.
00-A0-7A ADVANCED PERIPHERALS
00-A0-7B DAWN COMPUTER INCORPORATION
00-A0-7C TONYANG NYLON CO., LTD.
00-A0-7D SEEQ TECHNOLOGY, INC.
00-A0-7E AVID TECHNOLOGY, INC.
00-A0-7F GSM-SYNTEL, LTD.
00-A0-80 ANTARES MICROSYSTEMS
00-A0-81 ALCATEL DATA NETWORKS
00-A0-82 NKT ELEKTRONIK A/S
00-A0-83 ASIMMPHONY TURKEY
00-A0-84 DATAPLEX PTY. LTD.
00-A0-86 AMBER WAVE SYSTEMS, INC.
00-A0-87 MITEL SEMICONDUCTOR, LTD.
00-A0-88 ESSENTIAL COMMUNICATIONS
00-A0-89 XPOINT TECHNOLOGIES, INC.
00-A0-8A BROOKTROUT TECHNOLOGY, INC.
00-A0-8B ASTON ELECTRONIC DESIGNS LTD.
00-A0-8C MULTIMEDIA LANS, INC.
00-A0-8D JACOMO CORPORATION
00-A0-8E IPSILON NETWORKS, INC.
00-A0-8F DESKNET SYSTEMS, INC.
00-A0-90 TIMESTEP CORPORATION
00-A0-91 APPLICOM INTERNATIONAL
00-A0-92 H. BOLLMANN MANUFACTURERS, LTD
00-A0-93 B/E AEROSPACE
00-A0-94 COMSAT CORPORATION
00-A0-95 ACACIA NETWORKS, INC.
00-A0-96 MITSUMI ELECTRIC CO., LTD.
00-A0-97 JC INFORMATION SYSTEMS
00-A0-98 NETWORK APPLIANCE CORP.
00-A0-99 K-NET LTD.
00-A0-9A NIHON KOHDEN AMERICA
00-A0-9B QPSX COMMUNICATIONS, LTD.
00-A0-9C XYPLEX, INC.
00-A0-9D JOHNATHON FREEMAN TECHNOLOGIES
00-A0-9E ICTV
00-A0-9F COMMVISION CORP.
00-A0-A0 COMPACT DATA, LTD.
00-A0-A1 EPIC DATA INC.
00-A0-A2 DIGICOM S.P.A.
00-A0-A3 RELIABLE POWER METERS
00-A0-A4 MICROS SYSTEMS, INC.
00-A0-A5 TEKNOR MICROSYSTEME, INC.
00-A0-A6 M.I. SYSTEMS, K.K.
00-A0-A7 VORAX CORPORATION
00-A0-A8 RENEX CORPORATION
00-A0-A9 GN NETTEST (CANADA) INC.
00-A0-AA SPACELABS MEDICAL
00-A0-AB NETCS INFORMATIONSTECHNIK GMBH
00-A0-AC GILAT SATELLITE NETWORKS, LTD.
00-A0-AD MARCONI SPA
00-A0-AE NUCOM SYSTEMS, INC.
00-A0-AF WMS INDUSTRIES
00-A0-B0 I-O DATA DEVICE, INC.
00-A0-B1 FIRST VIRTUAL CORPORATION
00-A0-B2 SHIMA SEIKI
00-A0-B3 ZYKRONIX
00-A0-B4 TEXAS MICROSYSTEMS, INC.
00-A0-B5 3H TECHNOLOGY
00-A0-B6 SANRITZ AUTOMATION CO., LTD.
00-A0-B7 CORDANT, INC.
00-A0-B8 SYMBIOS LOGIC INC.
00-A0-B9 EAGLE TECHNOLOGY, INC.
00-A0-BA PATTON ELECTRONICS CO.
00-A0-BB HILAN GMBH
00-A0-BC VIASAT, INCORPORATED
00-A0-BD I-TECH CORP.
00-A0-BE INTEGRATED CIRCUIT SYSTEMS,INC
00-A0-BF WIRELESS DATA GROUP MOTOROLA
00-A0-C0 DIGITAL LINK CORP.
00-A0-C1 ORTIVUS MEDICAL AB
00-A0-C2 R.A. SYSTEMS CO., LTD.
00-A0-C3 UNICOMPUTER GMBH
00-A0-C4 CRISTIE ELECTRONICS LTD.
00-A0-C5 ZYXEL COMMUNICATION
00-A0-C6 QUALCOMM INCORPORATED
00-A0-C7 TADIRAN TELECOMMUNICATIONS
00-A0-C8 ADTRAN INC.
00-A0-C9 INTEL CORPORATION - HF1-06
00-A0-CA FUJITSU DENSO LTD.
00-A0-CB ARK TELECOMMUNICATIONS, INC.
00-A0-CC LITE-ON COMMUNICATIONS, INC.
00-A0-CD DR. JOHANNES HEIDENHAIN GMBH
00-A0-CE ASTROCOM CORPORATION
00-A0-CF SOTAS, INC.
00-A0-D0 TEN X TECHNOLOGY, INC.
00-A0-D1 INVENTEC CORPORATION
00-A0-D2 ALLIED TELESIS INTERNATIONAL
00-A0-D3 INSTEM COMPUTER SYSTEMS, LTD.
00-A0-D4 RADIOLAN, INC.
00-A0-D5 SIERRA WIRELESS INC.
00-A0-D6 SBE, INC.
00-A0-D7 KASTEN CHASE APPLIED RESEARCH
00-A0-D8 SPECTRA - TEK
00-A0-D9 CONVEX COMPUTER CORPORATION
00-A0-DA INTEGRATED SYSTEMS
00-A0-DB FISHER & PAYKEL PRODUCTION
00-A0-DC O.N. ELECTRONIC CO., LTD.
00-A0-DD AZONIX CORPORATION
00-A0-DE YAMAHA CORPORATION
00-A0-DF STS TECHNOLOGIES, INC.
00-A0-E0 TENNYSON TECHNOLOGIES PTY LTD
00-A0-E1 WESTPORT RESEARCH
00-A0-E2 KEISOKU GIKEN CORP.
00-A0-E3 XKL SYSTEMS CORP.
00-A0-E4 OPTIQUEST
00-A0-E5 NHC COMMUNICATIONS
00-A0-E6 DIALOGIC CORPORATION
00-A0-E7 CENTRAL DATA CORPORATION
00-A0-E8 REUTERS HOLDINGS PLC
00-A0-E9 ELECTRONIC RETAILING SYSTEMS
00-A0-EA ETHERCOM CORP.
00-A0-EB FASTCOMM COMMUNICATIONS CORP.
00-A0-EC TRANSMITTON LTD.
00-A0-ED PRI AUTOMATION
00-A0-EE NASHOBA NETWORKS
00-A0-EF LUCIDATA LTD.
00-A0-F0 TORONTO MICROELECTRONICS INC.
00-A0-F1 MTI
00-A0-F2 INFOTEK COMMUNICATIONS, INC.
00-A0-F3 STAUBLI
00-A0-F4 GE
00-A0-F5 RADGUARD LTD.
00-A0-F6 AUTOGAS SYSTEMS, INC.
00-A0-F7 V.I COMPUTER CORP.
00-A0-F8 SYMBOL TECHNOLOGIES, INC.
00-A0-F9 BINTEC COMMUNICATIONS GMBH
00-A0-FA Marconi Communication GmbH
00-A0-FB TORAY ENGINEERING CO., LTD.
00-A0-FC IMAGE SCIENCES, INC.
00-A0-FD SCITEX DIGITAL PRINTING, INC.
00-A0-FE BOSTON TECHNOLOGY, INC.
00-A0-FF TELLABS OPERATIONS, INC.
00-AA-00 INTEL CORPORATION
00-AA-01 INTEL CORPORATION
00-AA-02 INTEL CORPORATION
00-AA-3C OLIVETTI TELECOM SPA (OLTECO)

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  1. logo design samples 2010.10.18 18:31 신고

    Your site is amazing.I am very impressed to see this,i want to come back for visiting your site.Keep doing Good as well as you can..

    • tisiphone 2010.10.19 00:24 신고

      Thanks for your high compliment :-)
      Because your advice, I will operate the better this blog~ Xie Xie~!

  2. sh jeong 2013.03.07 19:54 신고

    떠도는 맥어드레스의 정체를 여기서 알게 되네요....
    하루이상헤메었는데 ㅎㅎ 허무합니다.
    감사요~~

  3. 2014.07.16 19:52

    비밀댓글입니다

    • MAC 주소는 손쉽게 변경이 가능하므로,
      해킹의 경우 정확한 제조사를 파악하는 것은 현실상 어렵습니다.


[ICON] Cisco Icons

구성도 그릴 때 요긴한 시스코 아이콘 모음 템플릿


2009_cisco_icons_4_29_09.ppt


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[UDP] UDP의 프로토콜 넘버는 ?


http://www.iana.org/assignments/protocol-numbers/
에 보면 IANA에서 지정한 UDP의 프로토콜 넘버는 17입니다.




테스트를 통해 맞는지 확인해 보겠습니다.

NTP 시간동기화를 할때 Wireshark를 통해 UDP 패킷을 떠보기로 했습니다.


해당 IP 207.46.232.182는 윈도우 PC에서 시간동기화를 할 때 time.windows.com으로 NTP 서버의 IP 입니다.

Wireshark로 패킷을 뜬 후 NTP 정보만 Sort 하였습니다.


중간에 보면 IP 헤더에 포함된 UDP의 프로토콜이...

11로 되어있습니다.

처음에는 Hex 값인 줄 모르고 대단한 오류를 발견한 줄 알았습니다...ㅜㅜ

0x11 이니...Decimal로는 17, UDP의 프로토콜 넘버는 17이 맞네요...OTZ


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[C3500XL] Catalyst 3500 series XL 비밀번호 복구 방법

# 시스코 패스워드 리커버리 방법

1. 전원 코드를 뺐다가 다시 꼽아서 전원을 켭니다.

2. 로딩 과정 중 스위치 전면부 STAT LED의 램프의 불이 들어올 때 MODE 버튼을 한번 누릅니다.

3. 다음과 같은 화면이 나옵니다.

 The system has been interrupted, or encountered an error
during initializion of the flash filesystem.  The following
commands will initialize the flash filesystem, and finish
loading the operating system software:

    flash_init
    load_helper
    boot

switch:


4. flash_init 이라고 입력합니다.

5. dir flash: 를 해보면 config.text 파일이 보입니다.

6. rename flash:config.text flash:config.bak 으로 파일 이름을 변경합니다.

7. boot 를 입력합니다.

8. 이제 초기화가 되면서 다음과 같은 화면이 나옵니다.
 Continue with configuration dialog? [yes/no]:

9. n을 입력합니다.

10. rename flash:config.bak flash:config.text 을 입력합니다.

11. conf t 하여 패스워드를 재 설정한 후, wr m으로 저장합니다.


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[ well-known port number ]

C:\WINDOWS\system32\drivers\etc 에 services 파일을 열어보면,
흔히들 사용하는 well-known 포트정보에 대한 리스트가 있습니다.

자주 사용하지 않는 포트번호를 암기할 필요없이 필요할때 확인해보면 되겠죠? ^^;

-------------------------------------------------------------------------------------------

# Copyright (c) 1993-1999 Microsoft Corp.
#
# This file contains port numbers for well-known services defined by IANA
#
# Format:
#
# <service name>  <port number>/<protocol>  [aliases...]   [#<comment>]
#

echo                7/tcp
echo                7/udp
discard             9/tcp    sink null
discard             9/udp    sink null
systat             11/tcp    users                  #Active users
systat             11/tcp    users                  #Active users
daytime            13/tcp
daytime            13/udp
qotd               17/tcp    quote                  #Quote of the day
qotd               17/udp    quote                  #Quote of the day
chargen            19/tcp    ttytst source          #Character generator
chargen            19/udp    ttytst source          #Character generator
ftp-data           20/tcp                           #FTP, data
ftp                21/tcp                           #FTP. control
telnet             23/tcp
smtp               25/tcp    mail                   #Simple Mail Transfer Protocol
time               37/tcp    timserver
time               37/udp    timserver
rlp                39/udp    resource               #Resource Location Protocol
nameserver         42/tcp    name                   #Host Name Server
nameserver         42/udp    name                   #Host Name Server
nicname            43/tcp    whois
domain             53/tcp                           #Domain Name Server
domain             53/udp                           #Domain Name Server
bootps             67/udp    dhcps                  #Bootstrap Protocol Server
bootpc             68/udp    dhcpc                  #Bootstrap Protocol Client
tftp               69/udp                           #Trivial File Transfer
gopher             70/tcp
finger             79/tcp
http               80/tcp    www www-http           #World Wide Web
kerberos           88/tcp    krb5 kerberos-sec      #Kerberos
kerberos           88/udp    krb5 kerberos-sec      #Kerberos
hostname          101/tcp    hostnames              #NIC Host Name Server
iso-tsap          102/tcp                           #ISO-TSAP Class 0
rtelnet           107/tcp                           #Remote Telnet Service
pop2              109/tcp    postoffice             #Post Office Protocol - Version 2
pop3              110/tcp                           #Post Office Protocol - Version 3
sunrpc            111/tcp    rpcbind portmap        #SUN Remote Procedure Call
sunrpc            111/udp    rpcbind portmap        #SUN Remote Procedure Call
auth              113/tcp    ident tap              #Identification Protocol
uucp-path         117/tcp
nntp              119/tcp    usenet                 #Network News Transfer Protocol
ntp               123/udp                           #Network Time Protocol
epmap             135/tcp    loc-srv                #DCE endpoint resolution
epmap             135/udp    loc-srv                #DCE endpoint resolution
netbios-ns        137/tcp    nbname                 #NETBIOS Name Service
netbios-ns        137/udp    nbname                 #NETBIOS Name Service
netbios-dgm       138/udp    nbdatagram             #NETBIOS Datagram Service
netbios-ssn       139/tcp    nbsession              #NETBIOS Session Service
imap              143/tcp    imap4                  #Internet Message Access Protocol
pcmail-srv        158/tcp                           #PCMail Server
snmp              161/udp                           #SNMP
snmptrap          162/udp    snmp-trap              #SNMP trap
print-srv         170/tcp                           #Network PostScript
bgp               179/tcp                           #Border Gateway Protocol
irc               194/tcp                           #Internet Relay Chat Protocol       
ipx               213/udp                           #IPX over IP
ldap              389/tcp                           #Lightweight Directory Access Protocol
https             443/tcp    MCom
https             443/udp    MCom
microsoft-ds      445/tcp
microsoft-ds      445/udp
kpasswd           464/tcp                           # Kerberos (v5)
kpasswd           464/udp                           # Kerberos (v5)
isakmp            500/udp    ike                    #Internet Key Exchange
exec              512/tcp                           #Remote Process Execution
biff              512/udp    comsat
login             513/tcp                           #Remote Login
who               513/udp    whod
cmd               514/tcp    shell
syslog            514/udp
printer           515/tcp    spooler
talk              517/udp
ntalk             518/udp
efs               520/tcp                           #Extended File Name Server
router            520/udp    route routed
timed             525/udp    timeserver
tempo             526/tcp    newdate
courier           530/tcp    rpc
conference        531/tcp    chat
netnews           532/tcp    readnews
netwall           533/udp                           #For emergency broadcasts
uucp              540/tcp    uucpd
klogin            543/tcp                           #Kerberos login
kshell            544/tcp    krcmd                  #Kerberos remote shell
new-rwho          550/udp    new-who
remotefs          556/tcp    rfs rfs_server
rmonitor          560/udp    rmonitord
monitor           561/udp
ldaps             636/tcp    sldap                  #LDAP over TLS/SSL
doom              666/tcp                           #Doom Id Software
doom              666/udp                           #Doom Id Software
kerberos-adm      749/tcp                           #Kerberos administration
kerberos-adm      749/udp                           #Kerberos administration
kerberos-iv       750/udp                           #Kerberos version IV
kpop             1109/tcp                           #Kerberos POP
phone            1167/udp                           #Conference calling
ms-sql-s         1433/tcp                           #Microsoft-SQL-Server
ms-sql-s         1433/udp                           #Microsoft-SQL-Server
ms-sql-m         1434/tcp                           #Microsoft-SQL-Monitor
ms-sql-m         1434/udp                           #Microsoft-SQL-Monitor               
wins             1512/tcp                           #Microsoft Windows Internet Name Service
wins             1512/udp                           #Microsoft Windows Internet Name Service
ingreslock       1524/tcp    ingres
l2tp             1701/udp                           #Layer Two Tunneling Protocol
pptp             1723/tcp                           #Point-to-point tunnelling protocol
radius           1812/udp                           #RADIUS authentication protocol
radacct          1813/udp                           #RADIUS accounting protocol
nfsd             2049/udp    nfs                    #NFS server
knetd            2053/tcp                           #Kerberos de-multiplexor
man              9535/tcp                           #Remote Man Server

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[네트워크] 리눅스에서 네트워크 대역폭 측정하기

네트워크 관점에서 보면 트래픽을 유발할 수 있는 NFS와 같은 파일서버의 대역폭이 궁금할 때가 있습니다.

보통 윈도우서버의 경우 티밍, 리눅스서버의 경우 본딩이라는 기술을 이용해 2개 이상의 랜카드를 묶어서
하나의 채널로 사용하기에 더 넓은 대역폭을 사용하는 경우도 있습니다.

"그럼 실제 랜카드의 대역폭은 어떻게 될까요?"

만약 기가비트 랜카드의 경우 이론상,
1Gbit는 1024Mbit 이므로, 1024Mbit/8=128MBytes 즉, 128MB가 되게 됩니다.

리눅스의 경우 툴을 이용하여 대역폭을 측정할 수 있습니다.
레드햇계열의 경우)

yum -y install iperf 를 하여 측정하고자 하는 서버에 설치를 합니다.

한번 VMWARE에 있는 2개의 가상 OS를 바탕으로 테스트를 해봤습니다.

1. LINUX A 서버 192.168.31.130
트래픽을 받는 서버의 경우 iperf -s -f M


2. LINUX B 서버 192.168.31.133
트래픽을 보내는 서버의 경우 iperf -c 192.168.31.133 -P 4 -f M -w 256k -t 60


# 결과 ; 상기와 같이 VMWARE에 있는 가상 리눅스서버를 대상으로 했을 때 거의 이론상 근접한 100MB의 대역폭을 사용할 수 있음을 알 수 있습니다. (VMWARE 6.0 버전의 경우 OS 상의 랜카드가 기가비트로 잡힌다는 것도 알 수 있습니다.)

만약, 본딩 및 티밍을 구성하였을 경우 현재 랜카드 대역폭의 2배 정도를 소화할 수 있다고 생각됩니다...^-^




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내 IP를 확인하는 방법.pdf


[내 PC의 공인 IP를 확인하는 방법]

회사 또는 가정에서 PC를 사용할 경우 자신의 IP를 사설로 사용하는 경우가 많습니다.
사설 IP의 경우 보통 192.168.x.x와 같은 IP를 사용하는데요...
그럼, 외부에서 보이는 IP는 어떻게 될까요?

여기서 말하는 IP는 웹서버의 접속 로그에 남는 IP이기도 하죠 ^^;

[사용용도]
1. 방화벽 정책을 오픈할 경우 상대방의 IP를 확인할 때 필요함
2. 실제 본인의 IP가 웹접속 및 인터넷 망에서 어떻게 표현되는지 확인할 때 필요함 등등...



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전 세계 IP 대역 리스트가 있는 곳...(maxmind)

http://www.maxmind.com/app/geolitecountry

http://www.maxmind.com/download/geoip/database/GeoIPCountryCSV.zip

이젠 MAXMIND라는 곳에서 매월 업데이트된 국가별 아이피 정보를 얻을 수 있습니다.

해당 파일을 이용할 수 있는 방법은 어떤게 있을까요?

1. 윈도우 IPSec을 이용해 서버에서 짱개 IP 대역을 차단하는 방법 -> 자기 PC에 가능함 ; 재밌음

2. 리눅스 머신에서 iptable과 GeoIP를 연계하여 짱개 IP 대역을 차단하는 방법 -> 사이트에서 요긴함

3. Snort는 IDS 기반이지만 Snort-iptable를 연계하여 실제 IPS를 만든 후 차단된 리스트 중

국가별 통계를 확인할 때 쓰는 방법 등등...

윈도우 및 리눅스 머신을 다룰 때 언젠간 요긴하게 먹히는 자료입니다.

그럼? 한국 IP 대역은 어캐 확인할까엽?

https://ip.nic.or.kr/main.html 요기 한국인터넷진흥원에서 확인합니다. ^^;;;


신고

Why Cisco's 802.11n?

지난 시스코 3월 웹세미나 강의 동영상입니다.

http://emessages.cisco.com/Key=81306.1xs.D.2.G7zQBG

FYI


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[TAP] Test Access Ports 자료입니다.

tap.alz

한때 모 담당자께서 탭장비가 모예용? 하고 물었을 때, 

왈 ; 약자가 Traffic Aggregation Passed 라고 트래픽을 모아서 흘려보내는 ㅡ.ㅡ 이라고 얼렁뚱땅
넘어간 일이 있었네염 ^^;;;

암튼 저처럼 무식하지 맙시다!

참고로 요즘 보안솔루션 도입시 자주 사용되는 바이패스 스위치 자료도 첨부합니당~


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[링크] JunOS 교육용 플래쉬

http://www.juniper.net/us/en/training/technical_education/jsl_international_editions/index.html


주니퍼에서 괜찮은 링크를 만들었네요...

지인이 추천해준 링크 ^-^

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[정보] UNC Address (\\192.168.x.x)

\\으로 접속하는 주소를 UNC address라고 하더군요...

like \\192.168.1.1
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[정보] 스위치 보호 설정(Arp Spoofing 대비)

# Mac Address Flooding 공격 보호

Switch#int fa0/1
Switch(config)#switchport port-security maximum 5     // 접속가능 최대허용 맥주소 개수 5개
Switch(config)#switchport port-security mac-address H.H.H     // 접속할 맥주소 지정
Switch(config)#switchport port-security violation [protect/restrict/shutdown]     // 설정위반시 실행모드

- 시스코 기준



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  1. # C3524에서 port security 설정하기
    1. conf t
    2. int fa 0/1
    3. port security max-mac-count 5

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