HP Webcache Filter Series Bedienungsanleitung Seite 1

http://www.3com.com/Part No. DUA1611-5AAA02Published May 2001SuperStack® 3 Webcache 1000 (3C16115)Webcache 3000 (3C16116)User Guide

100 CHAPTER 11: SOFTWARE UPGRADE AND INSTALLATION3Com recommends that you save your system configuration settings once the Webcache is configured and

Performing a Software Upgrade 101If you selected Upgrade Later, the Finish screen is displayed. Click Finish to exit the Upgrade Software wizard.If yo

102 CHAPTER 11: SOFTWARE UPGRADE AND INSTALLATION7 The software upgrade may take several minutes to complete. The Software Upgrade Successful screen i

Saving and Restoring Configurations 1033 Select System -> Control -> Install Software in the Navigation Tree. The first screen of the Software I

104 CHAPTER 11: SOFTWARE UPGRADE AND INSTALLATIONsystem configuration file includes a record of the Webcache software version that was running when th

Saving a Configuration 105earlier software version via a software installation, you can use a matching configuration file to restore the settings.Savi

106 CHAPTER 11: SOFTWARE UPGRADE AND INSTALLATIONCAUTION: You cannot restore a system configuration file which was created on a different software ver

IIICOMMAND LINE INTERFACEChapter 12 Command Line Interface

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12COMMAND LINE INTERFACEThe Webcache 1000/3000 has a Command Line Interface that allows you to manage certain features from a terminal. You may want t

ABOUT THIS GUIDEThis guide provides all the information you need to install and use a SuperStack® 3 Webcache 1000/3000. It also describes the features

110 CHAPTER 12: COMMAND LINE INTERFACEAccessing theCommand LineInterface Through theConsole PortTo manage the Webcache using the Command Line Interfac

Logging In To the Command Line Interface 111Accessing theCommand LineInterface Over theNetworkTo manage the Webcache using the Command Line Interface

112 CHAPTER 12: COMMAND LINE INTERFACEUnderstanding the Command Line InterfaceOnce you log in to the Command Line Interface, the Top-level menu is dis

Understanding the Command Line Interface 113 System menuThis menu contains commands that allow you to view and configure information about the Webcac

114 CHAPTER 12: COMMAND LINE INTERFACE To display sub-menus:At the Select menu option prompt, enter the name of the menu or menus. To display parent

Getting Started 115Getting Started The Getting Started command allows you to quickly configure or view basic setup information for the Webcache.To co

116 CHAPTER 12: COMMAND LINE INTERFACE9 Enter a valid domain name.The following prompt is displayed:Enter DNS Server IP address [0.0.0.0]:10 Enter a v

Exiting the Command Line Interface 117The following prompt is displayed:Retype password:16 Re-enter the new password. A message is displayed informing

118 CHAPTER 12: COMMAND LINE INTERFACE Specify an IP address to be tracedSpecifying Basic IPConfigurationYou can use the basicConfig command on the I

Displaying and Changing IP-related Information 119The following prompt is displayed:Enter DNS Server IP address [196.168.100.3]:4 Enter a valid Domain

12 ABOUT THIS GUIDEConventions Table 1 and Table 2 list conventions that are used throughout this guide.Table 1 Notice IconsIcon Notice Type Descrip

120 CHAPTER 12: COMMAND LINE INTERFACE64 bytes from 192.156.136.22: icmp_seq=0 ttl=248 time=195.2msIf the device is not accessible, or is not function

Displaying and Changing Security Information 121If the device is accessible and functioning correctly, a message similar to the following is displayed

122 CHAPTER 12: COMMAND LINE INTERFACEEnabling andDisabling PasswordRecoveryYou can enable or disable password recovery for the Webcache using the pwd

Displaying and Changing Webcache Information and Functions 1232 Enter yes if you wish to proceed, or no if you want to stop the initialization.What Ha

124 CHAPTER 12: COMMAND LINE INTERFACETo specify the contact name details: 1 At the Top-level menu, enter:system management contactThe following promp

Displaying and Changing Webcache Information and Functions 125To set the community string:1 At the Top-level menu, enter:system management communityTh

126 CHAPTER 12: COMMAND LINE INTERFACE ContactDisplays the details of a person to contact about the Webcache. For information about assigning new con

IVPROBLEM SOLVINGChapter 13 Problem Solving

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13PROBLEM SOLVINGThis chapter contains a list of known problems and suggested solutions. It covers the following topics: Accessing the Webcache via t

Related Documentation 13Related DocumentationIn addition to this Guide, the Webcache 1000/3000 documentation set includes the following documents: We

130 CHAPTER 13: PROBLEM SOLVINGThe terminal or terminal emulator can no longer access the Webcache over the network. Check that the connections and ne

Solving Web Interface Problems 131For the browser to operate the Web interface correctly JavaScript™ and Cascading Style Sheets must be enabled on you

132 CHAPTER 13: PROBLEM SOLVINGproblem, click in the part of the Web interface that has not displayed and repeat the above.Some of the text is not dis

Solving Command Line Interface Problems 133The System Time is inaccurateCheck that: The Webcache system time is configured to be set through the Netw

134 CHAPTER 13: PROBLEM SOLVINGSolving Webcache Performance ProblemsThe performance of the Webcache is poorCheck: Whether any of the cache storage de

Solving Webcache Performance Problems 135Local domain sites cannot be accessed using the Webcache as a proxyThis is caused by an incorrect setting of

136 CHAPTER 13: PROBLEM SOLVING

VAPPENDICES AND INDEXAppendix A Safety InformationAppendix B Cable Specifications and Pin-outsAppendix C Technical SpecificationsAppendix D Technical

138

ASAFETY INFORMATIONYou must read the following safety information before carrying out any installation or removal of components, or any maintenance pr

14 ABOUT THIS GUIDE Page number (if appropriate)Example: SuperStack 3 Webcache 1000/3000 User Guide Part number: DUA1611-5AAA01 Page 25Please note

140 APPENDIX A: SAFETY INFORMATIONImportant Safety Information Installation and removal of the unit must be carried out by qualified personnel only.

Important Safety Information 141 France and Peru onlyThis unit cannot be powered from IT† supplies. If your supplies are of IT type, this unit must b

142 APPENDIX A: SAFETY INFORMATIONConsignes importantes de sécurité L'installation et la dépose de ce groupe doivent être confiés à un personnel

Consignes importantes de sécurité 143que si l'équipement auquel il est raccordé fonctionne dans les mêmes conditions. Le coupleur d'apparei

144 APPENDIX A: SAFETY INFORMATIONWichtige Sicherheitsinformationen Die Installation und der Ausbau des Geräts darf nur durch Fachpersonal erfolgen.

Wichtige Sicherheitsinformationen 145Bezeichnung Neutral tragen.†Impédance à la terre.WARNHINWEIS: RJ-45-Porte. Diese Porte sind geschützte Datenstec

146 APPENDIX A: SAFETY INFORMATION

BCABLE SPECIFICATIONS AND PIN-OUTSCable Specifications The Webcache supports the following cable types: Category 3One of five grades of Twisted Pair

148 APPENDIX B: CABLE SPECIFICATIONS AND PIN-OUTSPin-outsNull-Modem Cable 9-pin to RS-232 25-pinPC-AT Serial Cable 9-pin to 9-pinScreenTxDRxDGroundRTS

Pin-outs 149Modem Cable 9-pin to RS-232 25-pinRJ-45 PinAssignmentsPin assignments are identical for 10BASE-T and 100BASE-TX RJ-45 connectors.Table 13

IGETTING STARTEDChapter 1 Introducing the WebcacheChapter 2 Installing the WebcacheChapter 3 Configuring Web Browsers

150 APPENDIX B: CABLE SPECIFICATIONS AND PIN-OUTS

CTECHNICAL SPECIFICATIONSPhysical Dimensions Height: 44.45mm (1.75 in.) x Width: 482.6 mm (19.00 in.) x Depth: 610 mm (24.02 in.) (not including bulge

152 APPENDIX C: TECHNICAL SPECIFICATIONSStandards Supported SNMP:SNMP protocol (RFC 1517)MIB-II (RFC 1213)Interface MIB (RFC 1573)Remote Monitoring MI

DTECHNICAL SUPPORT3Com provides easy access to technical support information through a variety of services. This appendix describes these services.Inf

154 APPENDIX D: TECHNICAL SUPPORT3Com FTP Site Download drivers, patches, software, and MIBs across the Internet from the 3Com public FTP site. This s

Support from 3Com 155 A list of system hardware and software, including revision levels Diagnostic error messages Details about recent configuratio

156 APPENDIX D: TECHNICAL SUPPORTReturning Products for RepairBefore you send a product directly to 3Com for repair, you must first obtain an authoriz

Returning Products for Repair 157U.S.A. and Canada 1 800 NET 3Com(1 800 638 3266)Enterprise Customers:1 800 876 32661 408 326 7120(not toll-free)Count

158 APPENDIX D: TECHNICAL SUPPORT

GLOSSARY3Com NetworkSupervisorThe 3Com umbrella management system used to manage all of 3Com’s networking solutions.10BASE-T The IEEE specification fo

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160 GLOSSARYDNS Domain Name System. This system maps a numerical Internet Protocol (IP) address to a more meaningful and easy-to-remember name. When y

GLOSSARY 161with periods (full-stops), and is made up of a network section, an optional subnet section and a host section.LAN Local Area Network. A ne

162 GLOSSARYproxy cache The Webcache is connected to a Layer 2 switch in your LAN. The Web browser on each client machine in your network must be conf

GLOSSARY 163VLAN Virtual LAN. A group of location- and topology-independent devices that communicate as if they are on the same physical LAN.WAN Wide

164 GLOSSARY

INDEXNumbers10BASE-T/100BASE-TX port 213Com Knowledgebase Web Services 1533Com Network Supervisor 18, 833Com URL 153Aaccess levels of default users 58

166 INDEXsaving 103, 105connecting to the live network 44console port 20, 41hotspot 62contact command 123controlling Web access 75conventionsnotice ic

INDEX 167link speed 22port activity 22WAN port 21location command 124log, system 93configuring 93viewing 95logging access 79analyzing the logs 81confi

168 INDEXWAN 21positioning the Webcache 26power cord 26power socket 20power-up 31problem solving 129command line interface 133Web interface 130Proxy A

INDEX 169trace route 92traceroute command 120tracking access 79analyzing the logs 81configuring 80viewing 81transparent cache 33, 34transparent mode 2

1INTRODUCING THE WEBCACHEThis chapter contains introductory information about the Webcache 1000/3000 and how it can be used in your network. It covers

170 INDEX

3COM END USER SOFTWARE LICENSE AGREEMENTIMPORTANT: Read Before Using This ProductYOU SHOULD CAREFULLY READ THE FOLLOWING TERMS AND CONDITIONS BEFORE U

be affected or impaired and a valid, legal and enforceable provision of similar intent and economic impact shall be substituted therefor.ENTIRE AGREEM

medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact

6. Each time you redistribute the Program (or any work based on the Program), the recipient automatically receives a license from the original licenso

<one line to give the program's name and a brief idea of what it does.>Copyright (C) 19yy <name of author>This program is free softw

REGULATORY NOTICESFCC STATEMENT This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 o

18 CHAPTER 1: INTRODUCING THE WEBCACHE Smoother Traffic FlowTraffic surges can stress your network and server. The Webcache can help smooth out netwo

Webcache — Front View Detail 19Webcache — Front View DetailFigure 1 Webcache — Front ViewThe above illustration shows a Webcache 3000. The Webcache

3Com Corporation5400 Bayfront Plaza Santa Clara, California 95052-8145Copyright © 2001, 3Com Technologies. All rights reserved. No part of this docume

20 CHAPTER 1: INTRODUCING THE WEBCACHEWebcache — Rear View DetailFigure 2 Webcache — Rear ViewWARNING: WAN and LAN RJ-45 Ports. These are shielded R

Webcache — Rear View Detail 21console port uses a standard null-modem cable and is set to 9600 baud, 8 data bits, no parity and 1 stop bit.WAN Port Th

22 CHAPTER 1: INTRODUCING THE WEBCACHETable 4 LED Behavior The Link Speed LED does not change its state if the link is broken. It remains in its cur

Default Settings 23If you initialize the Webcache by selecting System -> Control -> Initialize in the Web interface or by entering system contro

24 CHAPTER 1: INTRODUCING THE WEBCACHE

2INSTALLING THE WEBCACHEThis chapter contains the information you need to install and set up the Webcache 1000/3000. It covers the following topics:

26 CHAPTER 2: INSTALLING THE WEBCACHEPackage Contents Webcache 1000 (3C16115) or Webcache 3000 (3C16116) CD-ROM User Guide (this guide) Release N

Rack-Mounting the Webcache 27If the Webcache is installed in a 19-inch rack or closed assembly its local air temperature may be greater than room ambi

28 CHAPTER 2: INSTALLING THE WEBCACHE3 Attach a rack-mounting bracket to each side of your Webcache using 4 of the screws provided for each bracket, a

Rack-Mounting the Webcache 294 Use an adjustable bracket to secure a rack-mounting rail to the rear of your rack as shown in Figure 6. To do this:a Sl

CONTENTSABOUT THIS GUIDEConventions 12Related Documentation 13Documentation Comments 13Product Registration 14IGETTING STARTED1 INTRODUCING THE WEBCAC

30 CHAPTER 2: INSTALLING THE WEBCACHE5 Attach the rack-mounting rail to the front of the rack. To do this:a Insert two screws through aligned openings

The Power-up Sequence 317 Slide the rack-mounting brackets on the sides of the Webcache into the rack-mounting rails.8 Secure the front of the Webcach

32 CHAPTER 2: INSTALLING THE WEBCACHECAUTION: The Webcache has no ON/OFF switch; the only method of connecting or disconnecting mains power is by conn

Deploying the Webcache in Your Network 33Deploying the Webcache in Your NetworkYou must determine how you are going to deploy the Webcache in your net

34 CHAPTER 2: INSTALLING THE WEBCACHEIn the Proxy Cache deployment the Webcache is connected to an Ethernet switch in your LAN. You must configure the

Deploying the Webcache in Your Network 35If the Webcache fails, the Layer 4 device will detect the failure and redirect Web requests to the WAN, if th

36 CHAPTER 2: INSTALLING THE WEBCACHENetwork Address Translation (NAT) does not apply to the DMZ port of the Firewall so you will need to configure th

Setting Up the Webcache for Management 37Webcache to your live network. In particular, ensure that the IP settings of the Webcache fit into those of y

38 CHAPTER 2: INSTALLING THE WEBCACHESetting Up Using theWeb InterfaceYou can setup the Webcache for management via the Web interface by using a Web b

Setting Up the Webcache for Management 39Accessing the Web InterfaceTo access the Web interface:1 Open the Web browser on the management workstation.

Proxy Cache 33Transparent Cache 34Migrating from Proxy Cache to Transparent Cache Mode 35Deploying the SuperStack 3 Firewall as a Proxy Forwarder 35Se

40 CHAPTER 2: INSTALLING THE WEBCACHEFigure 14 User name and password screenIf the user name and password screen is not displayed, see “Solving Web

Setting Up the Webcache for Management 41To setup the Webcache using the Command Line Interface over a test network using Telnet, open a Telnet sessio

42 CHAPTER 2: INSTALLING THE WEBCACHEb Tighten the retaining screws on the cable to prevent it from being loosened.c Connect the other end of the cabl

Getting Started Wizard Settings 43Getting Started Wizard SettingsThe following table shows the settings that you can configure in both the Web interfa

44 CHAPTER 2: INSTALLING THE WEBCACHEConnecting the Webcache to the Live NetworkThe following sections describe how to connect the Webcache to your li

Network Configuration Concepts 45Network Configuration ConceptsThe following sections explain certain key concepts of configuring your network, which

46 CHAPTER 2: INSTALLING THE WEBCACHESubnets and Using aSubnet MaskYou can divide your IP network into sub-networks also known as subnets. Support for

Network Configuration Concepts 47exists on your network, enter the IP address 0.0.0.0 or leave the field blank. If you set the default router to 0.0.0

48 CHAPTER 2: INSTALLING THE WEBCACHE You cannot enter a host name starting or ending with a . (dot) character. It must start and end with a letter o

3CONFIGURING WEB BROWSERSThis chapter contains information about configuring Web browsers on client machines for use in a Webcache proxy cache deploym

The Device View 61The Help View 63The Navigation Tree 64The Information Area 655 SYSTEM TIMEConfiguring the System Time 67What is the Network Time Pro

50 CHAPTER 3: CONFIGURING WEB BROWSERSYou can view the port number for the Webcache by:a Logging into the Web Interface.b Selecting Device View ->

Proxy Auto Configuration (PAC) File Scripts 51You can only use a PAC file to configure the Web browsers on client machines when the Webcache is operat

52 CHAPTER 3: CONFIGURING WEB BROWSERS6 Tick Go Direct if no Webcache Available if you want to configure Web browsers to directly access the Web if th

Web Proxy Auto-Discovery (WPAD) 536 Click Reload.7 Click OK.Web Proxy Auto-Discovery (WPAD)The Webcache and Microsoft Internet Explorer 5 (and later v

54 CHAPTER 3: CONFIGURING WEB BROWSERSTo configure Internet Explorer 5 to use WPAD:1 Open Internet Explorer.2 From the Tools menu, click Internet Opti

IIWEBCACHE FEATURESChapter 4 Managing the WebcacheChapter 5 System TimeChapter 6 SecurityChapter 7 Controlling and Monitoring Web AccessChapter 8 Syst

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4MANAGING THE WEBCACHEThis chapter contains information about managing the Webcache using the management software that resides on the Webcache. Managi

58 CHAPTER 4: MANAGING THE WEBCACHELogging in as a Default UserIf you manage the Webcache using the Web interface or the Command Line Interface, you n

Accessing the Web Interface 59been optimized for PC screens with the desktop area set to 800 by 600 pixels. It is also recommended to set the font siz

SNMP Traps 85Configuring SNMP Traps 869 PERFORMANCE MONITORINGWhat is Performance Monitoring? 87Caching Performance Graphs 87System Performance Graphs

60 CHAPTER 4: MANAGING THE WEBCACHEUnderstanding the Web InterfaceFigure 18 The Web InterfaceThe Web interface is made up of four areas: The Banner

The Toolbar 61The Toolbar The Toolbar is always displayed at the top of the browser window, underneath the Banner. It contains three buttons which all

62 CHAPTER 4: MANAGING THE WEBCACHEThe Device View Navigation Tree is displayed on the left side of the browser window and allows you to perform opera

The Toolbar 63 Web Client Blocking Web Site Blocking Save Configuration Notepad System InformationDevice SummaryA table entitled Device Summary d

64 CHAPTER 4: MANAGING THE WEBCACHEThe Navigation Tree The Navigation Tree is always displayed on the left side of the browser window. It is a Windows

The Information Area 65The Information AreaThe Information Area is always displayed on the right side of the browser window. It contains information a

66 CHAPTER 4: MANAGING THE WEBCACHE

5SYSTEM TIMEThis chapter explains how to configure the system time of the Webcache. It contains the following topics: Configuring the System Time Wh

68 CHAPTER 5: SYSTEM TIMEWhat is the Network Time Protocol?The Network Time Protocol (NTP) is used to synchronize the time of client machines and serv

Configuring the System Time Using the Network Time Protocol 69Configuring the System Time Using the Network Time ProtocolTo configure the system time

III COMMAND LINE INTERFACE12 COMMAND LINE INTERFACEAccessing the Command Line Interface 109Accessing the Command Line Interface Through the Console P

70 CHAPTER 5: SYSTEM TIMEA Warning window appears asking if you want to continue with the system time change. Click Yes to continue and reset the Perf

6SECURITYThis chapter contains information about ensuring that the Webcache 1000/3000 is secure. It covers the following topics: What are Passwords?

72 CHAPTER 6: SECURITYYou must enter the following information in both the Getting Started wizard and the Password Configuration screen:1 Choose betwe

Performing Password Recovery 73anyone who has physical access to the Webcache can potentially change the password and lock you out of the management i

74 CHAPTER 6: SECURITY

7CONTROLLING AND MONITORING WEB ACCESSThis chapter contains information about controlling the access of the users of your network through the Webcache

76 CHAPTER 7: CONTROLLING AND MONITORING WEB ACCESSConfiguring Web Site BlockingTo configure Web Site Blocking using the Web interface:1 Log in to the

What is Web Client Blocking? 77to this website has been denied. If you do not agree with this site being blocked, please contact extension 1234”.To cu

78 CHAPTER 7: CONTROLLING AND MONITORING WEB ACCESS You can configure your network into subnets and assign specific client machine MAC addresses to b

What is Access Logging? 79preventing you from using the Web interface.You can regain access by either: Changing the client machine’s browser settings

IV PROBLEM SOLVING13 PROBLEM SOLVINGAccessing the Webcache via the Console Line 129Accessing the Webcache via Telnet 130Solving Web Interface Problems

80 CHAPTER 7: CONTROLLING AND MONITORING WEB ACCESSConfiguring Access LoggingTo configure Access Logging using the Web interface:1 Log in to the Web i

Viewing the Access Log 81can change the password by clicking Change Password and entering the new password.10 If you want to test and upload the Acces

82 CHAPTER 7: CONTROLLING AND MONITORING WEB ACCESS3Com recommends that you use Webtrends Log Analyzer to analyze the access logs that the Webcache pr

8SYSTEM EVENTSThis chapter contains information about the system events that can occur on the Webcache 1000/3000. It covers the following topics: Wha

84 CHAPTER 8: SYSTEM EVENTS4 Check Enable Email Notifcation of System Events.5 In the SMTP IP Address field, enter the IP address of the server to whi

SNMP Traps 85System Failure is also indicated by a yellow Power/Self Test/System Fault LED on the front panel of the Webcache; for more information, s

86 CHAPTER 8: SYSTEM EVENTSConfiguring SNMPTrapsTo configure SNMP Traps using the Web interface:1 Log in to the Web interface.2 Click Device View on t

9PERFORMANCE MONITORINGThis chapter contains information about monitoring the performance of the Webcache 1000/3000. It covers the following topics:

88 CHAPTER 9: PERFORMANCE MONITORING3 Select Caching Performance Graphs from the available graph types. Select one of the three available time periods

System Performance Graphs 89 Hit and Miss Latencies (msec)The average time per request that the Webcache takes to respond to client machine HTTP requ

Returning Products for Repair 156GLOSSARYINDEX3COM END USER SOFTWARE LICENSE AGREEMENTGNU GENERAL PUBLIC LICENSE VERSION 2, JUNE 1991REGULATORY NOTICE

90 CHAPTER 9: PERFORMANCE MONITORINGTo view the I/O Performance graphs:1 Log in to the Web interface.2 Select Performance -> Graphs in the Navigati

10SYSTEM DIAGNOSTICSThis chapter contains information about troubleshooting the configuration and network connectivity of the Webcache 1000/3000. It c

92 CHAPTER 10: SYSTEM DIAGNOSTICS4 In the IP Address field, enter the IP address of the device that you want to PING. Click Ping.5 The Webcache sends

System Log 931.routerc1 (140.204.20.20) 1.292ms, 1.343ms, 1.810ms2.BW-RTR-4.EUR.3Com.COM (161.71.21.45) 26.027ms, 27.156ms,44.902ms3.BW-RTR-1.EUR.3Com

94 CHAPTER 10: SYSTEM DIAGNOSTICSshould only enable it if you have been instructed to do so by 3Com support personnel.What is a SyslogServer?Syslog is

System Log 95Viewing the SystemLogTo view the contents of the System Log using the Web interface:1 Log in to the Web interface.2 Click Device View on

96 CHAPTER 10: SYSTEM DIAGNOSTICS

11SOFTWARE UPGRADE AND INSTALLATIONThis chapter contains information about upgrading and installing the management software of the Webcache 1000/3000.

98 CHAPTER 11: SOFTWARE UPGRADE AND INSTALLATIONThe configuration of the Webcache is preserved after a software upgrade has been performed; you do not

Performing a Software Upgrade 993 If you want the Webcache to automatically detect and download new software versions, and notify you of their availab