Cisco Systems WRT54GP2 guide

Wireless-G Broadband Router with 2 Phone Ports

Change your SSID regularly so that any hackers who have gained access to your wireless network will have to start from the beginning in trying to break in.

MAC Addresses. Enable MAC Address filtering. MAC Address filtering will allow you to provide access to only those wireless nodes with certain MAC Addresses. This makes it harder for a hacker to access your network with a random MAC Address.

WEP Encryption. Wired Equivalent Privacy (WEP) is often looked upon as a cure-all for wireless security concerns. This is overstating WEP’s ability. Again, this can only provide enough security to make a hacker’s job more difficult.

There are several ways that WEP can be maximized:

1.Use the highest level of encryption possible

2.Use “Shared Key” authentication

3.Change your WEP key regularly

WPA. Wi-Fi Protected Access (WPA) is the newest and best available standard in Wi-Fi security. Two modes are available: Pre-Shared Key and RADIUS. Pre-Shared Key gives you one encryption methods: TKIP (Temporal Key Integrity Protocol), which utilizes a stronger encryption method and incorporates Message Integrity Code (MIC) to provide protection against hackers.

WPA Pre-Shared Key. If you do not have a RADIUS server, Select the type of algorithm, TKIP or AES, enter a password in the Pre-Shared key field of 8-64 characters, and enter a Group Key Renewal period time between 0 and 99,999 seconds, which instructs the Router or other device how often it should change the encryption keys.

IMPORTANT: Always remember that each device in your wireless network MUST use the same encryption method and encryption key or your wireless network will not function properly.

Appendix B: Wireless Security

83

Security Threats Facing Wireless Networks

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Cisco Systems WRT54GP2 manual Wireless-G Broadband Router with 2 Phone Ports

Contents

Wireless- G Word definition How to Use this GuideCopyright and Trademarks Table of Contents Wireless-G Broadband Router with 2 Phone Ports Wireless Security Wireless Security WPAWireless Security WEP Wireless Network Access 32 Administration Tab Log Welcome Introduction What’s in this Guide? Introduction What’s in this Guide? Wireless-G Broadband Router with 2 Phone Ports Ad-Hoc versus Infrastructure Mode Planning Your Wireless NetworkSsid your wireless network’s name Network Topology Network Layout Phone2 Back Panel Front Panel Getting to Know the Router Front Panel Wireless-G Broadband Router with 2 Phone Ports Overview Connecting the Router Connect a PC Connection Instructions Configuring the Router Security SetupWireless Applications & Gaming AdministrationVoice Status How to Access the Web-based Utility Internet Setup Setup Tab Basic SetupInternet Connection Type Obtain an IP automatically PPPoE Static IP PPPoE RAS for SingTel Pptp Heart Beat Signal Heart Beat Signal Optional Settings Network SetupRouter IP Packet a unit of data sent over a network Network Address Server Settings Dhcp Time Setting Setup Tab Ddns TZO.com DynDNS.org MAC Clone Setup Tab MAC Address Clone 12 Setup Tab Advanced Routing Setup Tab Advanced Routing 13 Routing Table Entry List Wireless Tab Basic Wireless Settings 15 Wireless Tab Wireless Security WPA Pre-Shared Key Wireless Tab Wireless Security 16 Wireless Tab Wireless Security WPA Radius 18 Wireless Tab Wireless Network Access Wireless Tab Wireless Network Access 20 Advanced Wireless Settings Wireless Tab Advanced Wireless Settings Wireless-G Broadband Router with 2 Phone Ports Filter IP Address Range Security Tab FilterFilter Port Range Filter MAC Address Internet requests Block WAN Requests VPN Passthrough Security Tab VPN Passthrough Applications & Gaming Tab Port Range Forwarding Voice TabPort Range Forwarding Port Range 26 Applications & Gaming Tab Port Triggering Forwarded Range Applications & Gaming Tab UPnP ForwardingUPnP Forwarding Wireless-G Broadband Router with 2 Phone Ports Wireless-G Broadband Router with 2 Phone Ports DMZ Applications & Gaming Tab DMZ Application-based QoS Applications & Gaming Tab QoS Specific Port# fields Port-based QoS Voice QoS Router Password Administration Tab ManagementLocal Router Access Remote Router Access UPnP Backup and Restore Log Administration Tab Log Administration Tab Firmware Upgrade Administration Tab Factory DefaultsRuns a networking device Firmware with a newer version Information Status Tab VoiceLine1 Status Line2 Status 38 Status Tab Router Status Tab Router Local Network Status Tab Local Network Status Tab Wireless Common Problems and Solutions Appendix a Troubleshooting Need to set a static IP address on a PC For Windows 98 and Millennium For Windows XP For Windows Want to test my Internet connection For Windows XP Configuring the Router for details Am not able to access the Router’s Web-based Utility Setup Need to set up a server behind my Router TCP Application Start and End Protocol IP Address Enabled Can’t get the Internet game, server, or application to work Wireless-G Broadband Router with 2 Phone Ports My DSL service’s PPPoE is always disconnecting To start over, I need to set the Router to factory defaultFor Microsoft Internet Explorer 5.0 or higher For Netscape 4.7 or higher Wireless-G Broadband Router with 2 Phone Ports Need to use port triggering How do I make a phone call? Frequently Asked QuestionsCan I make calls if my Internet connection is down? Can I make calls while I’m browsing the Internet? Does the Router support IPX or AppleTalk? Where is the Router installed on the network?Is IPSec Passthrough supported by the Router? How can I block corrupted FTP downloads? Wireless-G Broadband Router with 2 Phone Ports Will the Router function in a Macintosh environment? If all else fails in the installation, what can I do?What is DMZ Hosting? How many ports can be simultaneously forwarded? Is the Router cross-platform compatible?Which modems are compatible with the Router? How can I check whether I have static or Dhcp IP addresses? What Ieee 802.11b features are supported? What is the Ieee 802.11b standard?What is the Ieee 802.11g standard? What is roaming? What is ad-hoc mode?What is infrastructure mode? What is Spread Spectrum? What is ISM band? What is WEP? What is DSSS? What is FHSS? And what are their differences?What is WPA? What is a MAC Address? Have excellent signal strength, but I cannot see my network How do I resolve issues with signal loss? Wireless-G Broadband Router with 2 Phone Ports Security Precautions Appendix B Wireless Security Security Threats Facing Wireless Networks Wireless-G Broadband Router with 2 Phone Ports Wireless-G Broadband Router with 2 Phone Ports Windows 98 or Me Instructions Figure C-1 IP Configuration Screen For the Router’s Web-based Utility Windows 2000 or XP Instructions Network Neighborhood/My Network Places Appendix D Windows HelpShared Resources Appendix D Windows Help Appendix E Glossary Appendix E Glossary Wireless-G Broadband Router with 2 Phone Ports Wireless-G Broadband Router with 2 Phone Ports Wireless-G Broadband Router with 2 Phone Ports Wireless-G Broadband Router with 2 Phone Ports Wireless-G Broadband Router with 2 Phone Ports Wireless-G Broadband Router with 2 Phone Ports Model Appendix F SpecificationsVoice Protocol UPnP able/cert Certified Storage Humidity Dimensions 32 x 1.89 x H x DWarranty Year Limited Limited Warranty Appendix G Warranty Information Appendix G Warranty Information FCC Statement Appendix H Regulatory Information Safety Notices Appendix I Contact Information Appendix I Contact Information