Cisco Systems WRTP54G Manuel d'utilisateur télécharger pdf (Page 89)

Wireless-G Broadband Router with 2 Phone Ports

Appendix B: Wireless Security

Security Threats Facing Wireless Networks

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.

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Cisco Systems WRTP54G Manuel d'utilisateur Page 89