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MAC address security

Wireless networks add a significant level of convenience for many users. The ability to roam at will and access the network without adding wires is quite useful. But, you need to do so securely. There are a number of basic steps you should take to protect your wireless network and MAC addresses filtering is one more way to secure it.

It is great to be able to access your network resources from anywhere in your home or office without having to plug into a wired network connection. But, if you can connect to your wireless access point from 80 feet away, then potentially every other wireless device in an 80-foot radius of your access point can as well.

There are a number of basic wireless security steps that many are already familiar with. Simple things like changing the SSID (service set identifier) from the vendor's default and disabling SSID broadcasting so you don't draw undo attention to your wireless network are a good start. Enabling some form of encryption, WEP (although it is quite flawed) or WPA, will help protect the data as it flies through the air and secure the communications between your device and the wireless router or access point.

Beyond these steps though, wireless routers or access points can generally filter access by MAC address as well which known as MAC address security. The MAC address is a unique identifier of your wireless network adapter. For a large enterprise with hundreds or thousands of wireless devices, it may not be feasible to try to maintain a listing of everyone's MAC address and constantly update the access list as users come and go. But, home offices or small to medium businesses may be able to add an extra layer of protection by filtering based on MAC address.

Refer to the directions for your wireless router or access point to find out how to enable MAC address security. Once you enable MAC address security and enter the MAC addresses of each of your wireless devices, the wireless router or access point will only allow those devices with MAC addresses on the access list to connect to the wireless network.

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