Cisco Systems WRV54G Manual do Utilizador descarregar pdf (Página 87)

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Appendix E: SNMP Functions

Wireless-G VPN Broadband Router

Appendix E: SNMP Functions

SNMP (Simple Network Management Protocol) is a widely-used network monitoring and control protocol. Data is

passed from a SNMP agent, such as the VPN Router, to the workstation console used to oversee the network.

The Router then returns information contained in a MIB (Management Information Base), which is a data

structure that defines what is obtainable from the device and what can be controlled (turned off, on, etc.).

SNMP functions, such as statistics, configuration, and device information, are not available without third-party

Management Software. The Router is compatible with all HP Openview compliant software.

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Wireless-G 1
Copyright and Trademarks 2
How to Use this Guide 2
Table of Contents 3
Chapter 1: Introduction 5
What’s in this Guide? 6
The Router’s Functions 8
IP Addresses 8
Why do I need a VPN? 9
What is a VPN? 10
VPN Router to VPN Router 11
The Back Panel 13
The Front Panel 14
Overview 15
Wired Connection to a PC 16
Wireless Connection to a PC 16
Configuring Windows 2000 PCs 19
Configuring Windows XP PCs 20
Security 22
Access Restrictions 22
Applications & Gaming 22
Administration 22
The Setup Tab 23
Network Setup 26
DynDNS.org 27
TZO.com Tab 27
MAC Clone 28
Advanced Routing 28
Static Routing 29
The Wireless Tab 30
Wireless Security 31
WEP (See Figure 6-12.) 31
The Security Tab 34
802.1x (See Figure 6-20.) 38
The Access Restrictions Tab 39
Port Range Forwarding 41
Port Triggering 42
UPnP Forwarding 43
The Administration Tab 45
Email Alert 46
Syslog Notification 46
Notification Queue Length 47
Alert Log 47
General Log 47
Ping Test (See Figure 6-32.) 47
Information 49
WAN Connections 49
Local Network 50
Wireless 51
System Performance 51
Appendix A: Troubleshooting 52
Common Problems and Solutions 53
Frequently Asked Questions 60
Appendix B: Wireless Security 67
Passive Attacks 68
Jamming Attacks 68
Active Attacks 69
Man-in-the-Middle Attacks 69
Maximizing Wireless Security 69
What Are The Risks? 70
Introduction 74
Environment 74
Filter List 1: win->router 75
Filter List 2: router->win 76
Tunnel 1: win->router 78
Tunnel 2: router->win 80
Ethernet Adapter 85
Wireless-G Broadband Router 86
Appendix E: SNMP Functions 87
Appendix G: Windows Help 89
Appendix H: Glossary 90
Appendix I: Specifications 96

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Cisco Systems WRV54G Manual do Utilizador Página 87

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