My wireless network is an unsecured network. How can I make it secure?

Answer 1

Router / Access Point

This is your main configuration unit. If someone gets access to it he will be able to change lots of preferences like passwords, encryption and mac address. Most routers have default passwords and SSID´s which have to be changed by their owner to make the entire system more secure.

1. Default Login

Your first task is to change the default user login to something else. Routers normally have default usernames and passwords like admin / 0000 or similar. You normally configure your wlan router using a web browser and the routers ip. Those are the username and password you enter when you want to change the configuration.

2. Updates

Visit the manufactures website and look for updates for your router / access point. Often those updates include security updates as well, recommended to to every once in a while.

3. Infrastructure / Ad-Hoc

With infrastructure mode enabled all deviced connected to the wireless lan communicate through the access point / router while the Ad-Hoc mode allows for direct communication. Disable Ad-Hoc mode if available.

4. SSID

The SSID, Service Set Identifier, identifies your router. Companies use default ones like wireless or wlan which are easy to guess. Choose a more secure password, best is a combination of letters and numbers.

Disable the SSID Broadcasting, which transmits its name to everyone in range.Wireless stations searching for a network connection can ‘discover’ it automatically, not needed if you know the SSID and configure your computers the way. It does not make sense to change the name but leave broadcasting on.

Note its still possible to sniff the SSID, its still send in clear text when a client associates with the router / access point.

5. Pings

Turn of Broadcast pings on the access point / router this makes it invisible to 802.11b analysis tools.

6. Mac Address Filtering

Every network device has in theory a unique MAC address. You can configure your access point / router the way that it only accepts connections from the mac address(es) you specify. Its possible to sniff your mac addresses and fake them, don´t rely on this alone.

On windows open the command prompt and enter ipconfig /all

The Physical Address is your MAC address, make sure you selected the right device, a wlan pci card for example.

If you are not using windows go to this website, it explains how you find it on your operating system.

7. Remote Management

Disable if not needed.

8. WPA, WPA2 or WEP

If your access point offers WPA2 encryption use it. WPA2 uses AES encryption. If you have an older access point use WPA and as last resort use WEP. Make sure you chose passwords that are more or less immune against dictionary attacks and chose the highest available encryption option (232 ->104 -> 40)

9. Wlan Coverage

It does not make sense most of the time to provide wlan coverage for a wider area than your own appartment. You can experiment with lowering the transmit level and the use of directional antennas to reduce the area your wlan covers.

Its a good idea to change the encryption keys and the SSID every now and then. The best protection is of course to turn your wireless network off if you don´t need it.

Answer 2

Look in the instructions for your wireless router, and find out how to browse to your router and you can set up security on it.

Write down the long number it gives you, and you will have to enter that number on every machine that you want to have access (including friends machines if they come over). You can set a maximum number of users (if you have three machines, set it to a max of three, and even if someone manages to get the access number - they still won't be able to connect because yours are using up all the allowed connections.

Answer 3

When logging into your router interface, don't forget to change the Login name and the password. Continuing to use the Belkin defaults, will allow anyone with access to your network to change the configuration and/or the defaults and lock you out. The only way back in, is to reset the router to factory conditions. Then, as suggested in the many other answers given, enable WEP or WPA OR do as I do and just use the MAC filtering device available from the router interface menu. Open it and add the MAC address of your computer network card/adapter looks something like this: (04:A5:B3:C4:F8:DD) and is entered as one number without the semicolons. Hope this helps. --- Use protection, your computer will thank you.

Answer 4

Enter your router configuration page and enable wireless security. It's up to you which type of encryption to use.

Answer 5

http://www.practicallynetworked.com/support/wireless_secure.htm

Answer 6

watch this video