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Why Most Wireless Network Security Advice Doesn’t Really Work

Almost every day I read articles about wireless networks and what to do to keep them secure. I usually get through a few lines and then don’t read it again. This is because the advice in many of these articles is a waste of time. Don’t worry though because there are things you can do that are less complicated and work better.

I’ll go into what you need to do, but first I’ll repeat what you read elsewhere and tell you why it won’t help you:

THINGS THAT DON’T WORK

To disable SSID broadcast: This is often called “SSID hiding”, but there is no such thing. It disables the SSID broadcast on the Wireless Access Point or wireless router, but there are other methods that also broadcast the SSID on the wireless network so you are disabling just one of many. Disabling SSID broadcasting makes your network more user-friendly and does not do anything important for network security.

MAC filtering: It’s often referred to as a security measure and can be used to prevent neighbors from using your broadband, but encryption is a better way to achieve this and more. The problem with MAC filtering is that it can be difficult to set up and configure and the MAC address of your wireless card can be seen in the header of wireless packets to your PC by anyone with a “sniffer”. traffic recording software that you can find for free on the Internet). So it’s easy to hack the MAC address and gain access. It is not worth the trouble to fix it.

Disable DHCP: Another big waste of time. DHCP allows for the assignment of IP addresses and other configurations. Many articles recommend disabling DHCP and changing to static IP addresses “enhanced security”. It will take a hacker about 10 seconds to determine the IP address of each network and simply provide their IP addresses. Just like turning off the SSID broadcast you are making your life difficult for no gain. Anyone who tells you this is a way to secure your wireless network doesn’t know what they’re talking about.

SO WHAT IS THE WORK?

The good news is that there are some simple things you can do to improve the security of your wireless network. Here are three easy ways to get wireless security:

Step 1 – Password protect your router

If you have a wireless or broadband router then it will allow you to access its configuration through a web browser. To find your router’s configuration, open a web browser and enter the routers link. The URL will be specified in the manual that came with the router.

This guide will also explain how to log into your router. The problem here is that this means that everyone knows what is unchangeable so you have to change it. Once you’re logged in it’s usually easy to find a link in the config to change your password.

If for any reason you don’t have a manual for your router then you can search on the internet using the words “default router x”. Don’t be surprised to find several sites that list the default settings for different routers, even exotic ones.

Step 2 – Disable access to the router from the Internet

If your router has access, try to find the router configuration from the Internet. This means that you can still log into the router to change the settings from your internal network, but no one else can access the Internet.

Step 3 – Add solid encryption

You need to encrypt your wireless network…actually. Read that sentence again if you want, it’s very important. Furthermore it is important to use WPA encryption and not WEP. WEP is better than no encryption, but it can be cracked in a matter of minutes and tools to do this are readily available.

If you have Windows XP (you should install the free update to SP2 if you haven’t already) and a new router or access point then you should have WPA. Use as long a key as possible to use and make it harder to guess. A random combination of hexadecimal characters (numbers 0-9 and letters AF) is fine.

For more information on changing encryption, see your router or access manual.

Businesses should consider using WPA2 along with a strong authentication method like RADIUS (Remote Authentication Dial In User Service), but this is not available on most home devices.

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