Frequently Asked Questions

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The following Frequently Asked Questions, answered by the authors of this book, are designed to both measure your understanding of the concepts presented in this chapter and to assist you with real-life implementation of these concepts. To have your questions about this chapter answered by the author, browse to www.syngress.com/solutions and click on the “Ask the Author” form. You will also gain access to thousands of other FAQs at ITFAQnet.com.

1.	Where can I get firmware updates for my access point?
2.	Where can I learn more about how VPNs work?
3.	Where can I learn more about wireless security?
4.	I have heard that both WPA and LEAP are vulnerable to dictionary attacks. What does this mean?

Answers

1.	The Web site of your access point’s manufacturer has firmware updates available. Linksys updates are available at www.linksys.com/download/. D-Link updates are available at http://support.dlink.com/downloads/. ORiNOCO updates can be downloaded from www.expressresponse.com/cgi-bin/proxim02/showFaq.cgi. Cisco updates are available at www.cisco.com/public/sw-center/sw-wireless.shtml.
2.	The Network Universe Web site has a good explanation of VPNs at www.dtool.com/vpns.html.
3.	Cisco has published a wireless LAN security whitepaper on their Web site, www.cisco.com/warp/public/cc/pd/witc/ao1200ap/prodlit/wswpf_wp.htm, that provides some good information about wireless security.
4.	A dictionary attack tries to guess the pre-shared key, password, or passphrase in use by testing it against a list, or dictionary, of words and phrases. By using strong passphrases or, in the case of WPA, long pre-shared keys you reduce your risk of being vulnerable to a dictionary attack.

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