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Originally Posted by Slavakion
Enable encryption. On most routers, this is WEP, which is insecure. This router supports WPA, which is better. I'm not sure how much better. But if your wifi card doesn't support WPA, then you're back to WEP.
There are problems with those three things, however. Anyone running *nix and a copy of Kismet will see your network no matter what your SSID status is. MAC filtering can be easily compromised by a knowledgeable hacker. And WEP can be cracked relatively quickly using traffic injection techniques.
So what am I saying? Enable those things, but don't expect it to turn your network into a fortress.
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Cracking WEP is an entirely passive affair. It simply requires enouge 'weak' packets to be collected, how long this takes depends on many things, but usualy a few days are enough. WPA has a DIFFRENT flaw, it is subject to something known as 'offline password guessing' which means if someone sniffs your login, while they cannot decrypt the password directly, them can test if the password is equal to a given string, so if you use a crappy password, it can be cracked, but a secure password will protect you quite well, and wan't slow anything down. Secure passwords are another thread
