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Wireless FAQ: Security

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Table of contents

1. The Questions

Check here for answers to your questions about Wireless Security. Ask a question in the discussion Forumz if you don't see what you need here.

• What's the difference between Open System and Shared Key authentication?

• What's the difference between 40 and 64 bit WEP?

• How do I prevent unknown users from using my wireless LAN?

• Is 802.11a more secure than 802.11b?

• How should I set up 2 routers to provide untrusted wireless users access to WAN but not expose my internal LAN?

• How do I keep wireless clients from using my wireless router?

• Does WEP impact the ability to hold a wireless connection?

• If I disable SSID (or ESSID) Broadcast on my Access Point or wireless router, is it true that only users who I've given my SSID to will be able to connect?

• How do I let someone access my wireless network, but only when I want them to?

• What are WPA and WPA2

• Which is more secure, 64 or 128 bit WEP?

• If a product is 802.11g spec-compliant or 11g Wi-Fi certified does it include Wi-Fi Protected Access (WPA) support?

• Is Wi-Fi Protected Access (WPA) supported in wireless bridges and wireless-to-Ethernet adapters?

• Is there a way to improve security above WEP in IBSS (Ad Hoc) mode, since WPA is not supported in that mode?

• Does WEP have a negative impact on an 802.11b wireless network throughput?

• Is traffic on a Wireless Distribution System (WDS) bridge more secure than other wireless data?

• Do any products support Wi-Fi Protected Access (WPA) over a WDS bridged connection?

• What security precautions should I take when using wireless hotspots?

• Should I consider buying a wireless device that doesn't support WPA?

• Can WPA be used with Windows versions other than Windows XP?

• How do keep wireless users connected to my wireless router from accessing my wired network?

• Does software exist that will allow someone to monitor my Wi-Fi Lan to display the same screens I am seeing on my computer in real time?

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