Originally Posted by GatorLCA
Here's a good wy to leave it open and not have anyone hi-jack your connection
Use the MAC address filter that is in the router (if it has such a feature). Linksys routers have it and it allows all the ports to be open but you only allow how many connections are on and what computers can be on as well. If anyone tries to hi-jack it, they keep getting "Trying to Establish Connection" or "Obtaining IP address" and it will never connect
I find it the best way since some games go through different ports and it's all a hassle to begin with, so we jsut leave it open with the MAC filter
You don't "Hi-jack" a connection by connecting to a wireless access point/router. A better term would be that you "leech" off it. If you were to connect to your neighbour's unprotected wireless network the DHCP server would assign you a network IP in addition to all the other computers already connected. It wouldn't disconnect anyone, but you could very easily slow down the network by hogging the down/up internet bandwidth.
Ironically, if you were to enable MAC filtering, then someone could actually "hi-jack" your connection if it was someone who knew what they were doing. They would use a wireless packet sniffer, find your computer's MAC address, spoof their own wireless MAC address to be the exact same, then they would inject packets to deauthenticate your computer from the router and then connect their's in its place.