Hi, I met something strange in my system. The condition is like that: I have a wireless router(DLink). I didn't set any security password for the Wifi because I worried about the speed. But I disabled the DHCP,so every machine has to set its IP and gateway same with the router. In my family, I have about 4 computers, that's not a big deal to me. Yesterday suddenly I found my router's Wifi was locked! It's so strange. Even somebody guessed my network IP range(192.168.0.x), how did he know the router's manage page's user name and password? Although that page is not https page, but if he wanted to hijack the package between my client and the router, he had to first begin a ARP attack and mask himself to a router(maybe he just acted as a package dispatcher to router). I even cannot imagine that would happen because this is a tough job. First he had to guess the IP range, then he had to write an ARP attack program and mask program. Even I am a senior software engineer, it will take me a couple of days and sometime we may stop before the first step-guessing IP range. Or there is someone use the Wifi security back door? I only know something about that news, but I don't know exactly about it. I'm using Linux OS, it seemed that the hole hides in the network? In fact, now I care technology more than the hack event itself. Can someone explain it to me? I graduated from a famous Chinese university's EE major. So don't hesitate to explain it in technology way. Now what I can understand is that: 1. The hacker guessed out the IP range because it's so normal and connected to the router using WIFI. 2. The hacker detect my laptop's IP and block the communication with the router. 3. When there's any communication between server and router will find it cannot communicate with the mac(because it's blocked). It will send a broadcast, the hacker's machine will acknowledge the request. 4. The the hacker's machine may act as a package dispatcher that can listen all packages between my laptop and the router.
Am I right?
Thanks in advance.