Hey guys, I need a program that I can scan my wifi connection for open ports, packet sniffing and other things that will tell me information about my wifi. I have reason to believe neighbours are stealing it. I need help to prove it.
hmm, well you should lock down your wifi so that your neighbours cannot steal it without a password. To do this look at your instruction booklet that came with it when you brought it. If not search for your model number with the word "lockdown" or some varient in google.
If you are looking to pen-test your router/WAP, use nMap, from insecure.org. There's an online version you can use to attack your own router, or you can simply use your public IP as the target. I suggest using fragmentation attacks. If you want to target machines on your LAN i.e. inside your network, use the software nMap on a second machine and "attack" the private IP of the LAN machine. However, if somebody is using your wireless connection, it's not due to an open port - it's due to your wireless not being locked down. You may be able to tell if your neighbors are tapping your connection by simply logging into your router and looking at the IPs and/or MAC addresses of the LAN/wireless clients. If you see two machines logged on and only have one running, you have your answer. Or if you see a machine with a MAC address that doesn't belong to a machine you own, and you've reset the router recently, you have your answer. One thing you can do is permit only the MAC addresses of machines you own to connect, among other things like encryption and limiting LAN IP which may be used to the number of machines that you want connected at one time. If you have a spare machine with two NICs you can run a sniffer like Wireshark and monitor the connection between, say, your cable modem and the router/WAP. In fact, you can even use a one-NIC machine if you put a hub (not ethernet switch, but a true old-fashioned HUB - they're about $10 on ebay) between the router and modem, with the "third leg" of the connection going to your sniffing computer. Don't use any of your machines and you won't have to do much sanitization. If that were somebody latching onto *my* cable they'd get a nice dose of a Man-in-the-Middle attack.
