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How do I secure a wireless network?

J

Jumpem

Lifer
I have a Linksys B/G Wireless router. I've had it set up with two desktop PCs connected to it with ethernet cables, and the wireless disabled.

My gf wants to use her work laptop to go online now. I turned on the wireless, and everything works. However, I have a feeling it is not secure. What settings should I look at to keep outsiders out?
 
mac address filtering, wireless encryption, latest firmware on the router and strong password is a good start.
 
Originally posted by: rdubbz420
mac address filtering, wireless encryption, latest firmware on the router and strong password is a good start.
Click to expand...

So I can set the router to only allow traffic from my three PCs MAC addresses? How do I go about the encryption and passwords... do I need to install anything on the machines?
 
you only need the mac address filtering to see the laptops mac, doesn't effect the wired ports. Go into the routers web menu and you should see some security options. Use the best encryption supported (WPA>Wep128>Wep40)
 
Originally posted by: nweaver
you only need the mac address filtering to see the laptops mac, doesn't effect the wired ports. Go into the routers web menu and you should see some security options. Use the best encryption supported (WPA>Wep128>Wep40)
Click to expand...

I saw the WEP stuff when I was looking at it last night. Does the laptop need a key or anything installed?
 
Disabling SSID broadcast is usless and only leaves you with a network that doesn't conform to spec. MAC filtering also has dubious benefit, since it is relatively simple to spoof a MAC.

The best way to secure a wireless network is to use WEP or WPA and change the keys often, or encapsulate wireless traffic in a VPN.
 
I wouldn't do just one to "secure" my network, but a combination of those. Disabling the SSID is a common practice in the enterprise. Mac filitering is just another level to add. I would use Mac filtering WITH no SSID WITH Encryption WITH authentication if possible. If not possible, use as much as is possible.
 
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