My current set up is as follows. I pay my neighbor a to share his internet connection. He uses WEP. I just put together a couple of machines, and if/when I need to connect them, I just do it through the wireless cards in them and connect to his WRT54G. What I would like to do is network my machines together so that I can share files between them, and backup between them and all that good stuff. I would also like it if my neighbor could not share files with me. Or even see what computers I have, what folders are shared, etc. I am just a little paranoid, as his network is definitely the low-hanging fruit in my area. Every other router in range is WPA, so if someone were to try to hack into someones wifi, it would be his. What is the best way to protect my computers from my neighbor and potentially malicious hackers? I have a WRT54g V2.0 (Curently running DD-WRT Mini, but planning on putting Tomato on it) as well as a Microsoft MN-700 Router. My place is small, so wired in my apartment is an option, but maintaining security and wireless would be sweet, for my smartphone and friends with laptops. Also, my neighbor understandably doesn't want to give me access to his router, but is there a way I can use my router to set up QoS? No need for details, as I will look that up when I get to that, just a simple yes or no. Also, is there a way to check to see if he has any ports forwarded, if I were going to access my computer from the Web? Please forgive my ignorance, and feel free to point me at any faqs or pre-existing threads I missed. Also, the "Networking" Forum was probably the right place for this post, but there are many, many threads with zero replies in that forum, and thought I would have better luck here.