HP Webcache Filter Series Manuale Utente Pagina 92
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92 CHAPTER 10: SYSTEM DIAGNOSTICS
4 In the IP Address field, enter the IP address of the device that you want to
PING. Click Ping.
5 The Webcache sends a single PING request to the specified device and a
message similar to the following is displayed:
Starting ping, resolution of displayed time is 10
milli-seconds
If the device is accessible and functioning correctly, a message similar to
the following is displayed:
64 bytes from 192.156.136.22: icmp_seq=0 ttl=248 time=195.2
ms
If the device is not accessible, or is not functioning correctly, a message
similar to the following is displayed:
No answer from 192.156.136.22
You can interrupt a PING request at any time by clicking Stop.
Tracing IP
Addresses
The Trace Route feature allows you to display the network hops from the
Webcache to a device on an IP network. This feature is useful to diagnose
connectivity problems such as a failed network device between the
Webcache and the web server being accessed.
Performing a Trace
Route
To perform a trace route to a device using the Web interface:
1 Log in to the Web interface.
2 Click Device View on the Toolbar.
3 Select Protocol -> Ping/TraceRoute in the Navigation Tree. The
Ping/Traceroute screen is displayed.
4 In the IP Address field, enter the IP address of the device that you want to
trace. Click TraceRoute.
5 The Webcache sends a trace route request to the specified device and a
message similar to the following is displayed:
traceroute to 191.128.40.121, 30 hops max, 38 byte packets
If the device is accessible and functioning correctly, a message similar to
the following is displayed which displays the network hops. Each hop
may take a few seconds to complete:
- SuperStack 1
- Webcache 1000 (3C16115) 1
- Webcache 3000 (3C16116) 1
- User Guide 1
- 5400 Bayfront Plaza 2
- Santa Clara, California 2
- 95052-8145 2
- 3Com Corporation 2
- CONTENTS 3
- II WEBCACHE FEATURES 4
- 5 SYSTEM TIME 5
- 6 SECURITY 5
- 8 SYSTEM EVENTS 5
- 9 PERFORMANCE MONITORING 6
- 10 SYSTEM DIAGNOSTICS 6
- III COMMAND LINE INTERFACE 7
- IV PROBLEM SOLVING 8
- VAPPENDICES AND INDEX 8
- ABOUT THIS GUIDE 11
- Table 1 Notice Icons 12
- Table 2 Text Conventions 12
- Related 13
- Documentation 13
- Comments 13
- Product 14
- Registration 14
- GETTING STARTED 15
- INTRODUCING THE WEBCACHE 17
- The Webcache and 18
- 3Com Network 18
- Supervisor 18
- Webcache — Front 19
- View Detail 19
- Webcache — Rear 20
- Table 4 LED Behavior 22
- Table 5 Default Settings 22
- INSTALLING THE WEBCACHE 25
- Choosing a Suitable 26
- Rack-Mounting 27
- Rack-Mounting the Webcache 29 29
- The Power-up 31
- Sequence 31
- ■ All connections are secure 32
- Deploying the 33
- Webcache in Your 33
- Setting Up the 36
- Webcache for 36
- Management 36
- SuperStack 3 38
- Getting Started 43
- Wizard Settings 43
- Connecting the 44
- Webcache to the 44
- Live Network 44
- Network 45
- Concepts 45
- 0.0.0.0 or leave the field 47
- . (dot) 48
- . (single dot) 48
- . (dots) next to each 48
- CONFIGURING WEB BROWSERS 49
- Proxy Auto 50
- Configuration (PAC) 50
- File Scripts 50
- Web Proxy 53
- Auto-Discovery 53
- WEBCACHE FEATURES 55
- MANAGING THE WEBCACHE 57
- Logging in as a 58
- Default User 58
- Accessing the Web 58
- Web Interface 60
- The Toolbar 61 61
- Figure 19 The Device Mimic 62
- The Toolbar 63 63
- (continued) 64
- The Information 65
- SYSTEM TIME 67
- 68 CHAPTER 5: SYSTEM TIME 68
- 70 CHAPTER 5: SYSTEM TIME 70
- SECURITY 71
- What is Password 72
- Recovery? 72
- Enabling/Disabling 72
- Password Recovery 72
- Performing 73
- 74 CHAPTER 6: SECURITY 74
- CONTROLLING AND MONITORING 75
- Configuring Web 76
- Site Blocking 76
- Customizing the 76
- Response 76
- What is Web Client 77
- Blocking? 77
- Client Blocking 78
- What is Access 79
- Logging? 79
- Configuring Access 80
- Viewing the Access 81
- Analyzing the 81
- Access Logs 81
- SYSTEM EVENTS 83
- 84 CHAPTER 8: SYSTEM EVENTS 84
- Table 11 SNMP Traps 85
- HAPTER 8: SYSTEM EVENTS 86
- PERFORMANCE MONITORING 87
- ■ Bandwidth Saving (%) 88
- ■ Hit and Miss Rate (%) 88
- ■ Request Rate (sec 88
- I/O Performance 89
- ■ Disk Activity (sec 90
- ■ Network Packets (sec 90
- ■ New TCP Connection (sec 90
- ■ DNS Lookups (sec 90
- ■ DNS Hit Rate (%) 90
- SYSTEM DIAGNOSTICS 91
- Tracing IP 92
- Addresses 92
- /Special.asp 94
- System Log 95 95
- HAPTER 10: SYSTEM DIAGNOSTICS 96
- SOFTWARE UPGRADE AND 97
- Detecting Software 98
- Upgrades 98
- Software Upgrade 99
- ■ Upgrade Now 100
- ■ Upgrade Later 100
- ■ Discard Upgrade 100
- Performing a 102
- Software 102
- Installation 102
- What is a Software 102
- Installation? 102
- Saving and 103
- Restoring 103
- Configurations 103
- Saving a 105
- Configuration 105
- Restoring a 105
- COMMAND LINE INTERFACE 107
- ■ 8 data bits 110
- ■ no parity 110
- ■ 1 stop bit 110
- Logging In To the 111
- Command Line 111
- Interface 111
- Understanding the 112
- A Quick Guide to 114
- ■ Send out a PING request 117
- Displaying and 121
- Changing Security 121
- Information 121
- Changing 122
- Webcache 122
- Information and 122
- Functions 122
- ■ System Name 125
- ■ Location 125
- PROBLEM SOLVING 127
- Accessing the 130
- Webcache via 130
- Tel ne t 130
- Solving Web 130
- Interface Problems 130
- Fonts (96 dpi) 132
- Solving Command 133
- Line Interface 133
- Problems 133
- Solving Webcache 134
- Performance 134
- HAPTER 13: PROBLEM SOLVING 136
- APPENDICES AND INDEX 137
- SAFETY INFORMATION 139
- Important Safety 140
- ■ France and Peru only 141
- ■ U.K. Only: 141
- Consignes 142
- Wichtige 144
- Sicherheitsinformat 144
- Bezeichnung Neutral tragen 145
- †Impédance à la terre 145
- PPENDIX A: SAFETY INFORMATION 146
- CABLE SPECIFICATIONS AND 147
- Pin-outs 148
- RJ-45 Pin 149
- Assignments 149
- TECHNICAL SPECIFICATIONS 151
- TECHNICAL SUPPORT 153
- Support from Your 154
- Network Supplier 154
- Support from 3Com 155 155
- Asia, Pacific Rim 155
- Returning Products 156
- PPENDIX D: TECHNICAL SUPPORT 158
- GLOSSARY 159
- 160 GLOSSARY 160
- GLOSSARY 161 161
- 162 GLOSSARY 162
- GLOSSARY 163 163
- 164 GLOSSARY 164
- NDEX 167 167
- NDEX 169 169
- 170 INDEX 170
- REGULATORY NOTICES 176
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