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October 18, 2001 11:57 AM

802.11 Security Shortcomings

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Shon Harris

Windows IT Pro

InstantDoc ID #22934

A popular wireless-communication standard opens the door to attackers

Through the miracle of wireless communication technology, you can send secure confidential information over open, shared airwaves. In its 802.11 wireless LAN (WLAN) standard, the IEEE has included built-in security mechanisms to provide confidentiality, access control, and data integrity for information that travels through the air. But is the technology as secure as it promises to be?

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To begin with, I can't tell whether this article applies to 802.11a, 802.11b or both. If this were a pressing issue for me, I'd look up the standards myself and check. Nonetheless, the author should be clear on this point.

Second, I'd love to see a discussion of the relative merits of WEP vs. the IPSec/L2TP facilities built into Windows 2000/XP. IPSec/L2TP seem to be the direction Microsoft is headed, but the lack of RADIUS support in most 802.11b/a access points makes it hard to implement.

Greg Williams 5/21/2002 9:59:22 AM

In order for an attacker to recieve transmissions, wouldn't he have to be in close proximity. My Linksys hub has a range of 800 feet.

Sidney Moore 5/21/2002 6:26:14 AM

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