Technicolor Mac Address Filtering Definition

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The MAC address is a 12 charcter hexadecimal code, for example 00-C0-26-A9-42-F7. The Linksys WRT54G allows you to create a list of either blocked or allowed MAC addresses. • Access your router by typing in your webbrowser. Login to the router. If you haven't changed the password yet: the default username and password are both 'admin' (without quotes). • Go to Wireless > Wireless MAC filther and set theWireless MAC Filteroption toenable.

'MAC • You can now choose betweenPreventorPermit only. If you choose Prevent you can specify a list of MAC addresses that are denied access to the wireless network. You than assume that everyone may connect to the wireless network, except for the MAC addresses you specify. Choosing Permit allows you to specify a list of MAC addresses that are permitted to access the network. Using Permit the router's default action is to block a computer, unless it is listed in the MAC address list. In this way you can grant access per computer, which is preferred for non-public networks that allow only trusted computers to use the wireless network. • Choose Permit and in the MAC address list, type the MAC addresses that are permitted to access the wireless network.

How to find the MAC address of your computer's wireless network card? In Windows XP or 2000 go to Start > Run. > type 'cmd' and press enter > type 'ipconfig /all' in the prompt. The MAC address is called 'physical address' in Windows and is displayed in the list. If you read this wireless network security guide from the beginning you now have a wireless network secured with either WEP or WPA encryption and MAC address filtering. This is pretty decent wireless security for a home network, especially if you use WPA encryption, or the even stronger AES encryption.

SETUP AND USER GUIDE Technicolor TG582n. 9.1.1 Configuring Content-based Filtering. 9.1.2 Adding Rules for Address-Based Filtering. How MAC Address Filtering Works. RELATED: Don’t Have a False Sense of Security: 5 Insecure Ways to Secure Your Wi-Fi. Each device you own comes with a unique media access control address (MAC address) that identifies it on a network. Normally, a router allows any device to connect — as long as it knows the appropriate passphrase.

In the next chapter I will discuss SSID broadcast.

How MAC Address Filtering Works RELATED: Each device you own comes with a unique media access control address (MAC address) that identifies it on a network. Normally, a router allows any device to connect — as long as it knows the appropriate passphrase. With MAC address filtering a router will first compare a device’s MAC address against an approved list of MAC addresses and only allow a device onto the Wi-Fi network if its MAC address has been specifically approved.

Your router probably allows you to configure a list of allowed MAC addresses in its web interface, allowing you to choose which devices can connect to your network. MAC Address Filtering Provides No Security So far, this sounds pretty good. But, so any device could pretend to have one of those allowed, unique MAC addresses.

MAC addresses are easy to get, too. They’re sent over the air with each packet going to and from the device, as the MAC address is used to ensure each packet gets to the right device. RELATED: All an attacker has to do is monitor the Wi-Fi traffic for a second or two, examine a packet to find the MAC address of an allowed device, change their device’s MAC address to that allowed MAC address, and connect in that device’s place. You may be thinking that this will not be possible because the device is already connected, but a “deauth” or “deassoc” attack that forcibly disconnects a device from a Wi-Fi network will allow an attacker to reconnect in its place. We’re not exagerating here.