Wireless Security.pdf - PDF Archive

CHAPTER 20
Implementing Basic Wireless Security
Chris Hurley
20.1 Introduction
This chapter looks at how to configure the basic security settings on the four most popular
access points currently deployed for wireless home use (Linksys WAP11, BEFW11SR,
and WRT54G, and the D-Link DI-624). It covers the practical steps for implementing
wireless security for home systems.
There are four very simple steps that are sufficient for most home users:
1. Use a unique Service Set Identifier (SSID).
2. Disable SSID broadcast.
3. Enable Wired Equivalent Privacy (WEP) encryption.
4. Filter access by Media Access Control (MAC) address.
20.2 Enabling Security Features on a Linksys WAP11 802.11 b
Access Point
The Linksys Wireless Access Point (WAP) 11 802.11b access point was one of the first
access points deployed by a large number of people. The WAP11 was the wireless access
point many users purchased that already had a home network with a router set up. The
WAP11 requires a separate router in order to allow access to any non-wireless devices,
to include Internet access. This section details the minimum steps you should take to
configure the WAP11 securely. All of the steps outlined in this section should be done
from a computer that is connected to your wired network. This is because as you make
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