How to catch all packets in a Wi-Fi network?
Hello, I need to analyze the packets in the wireless network.
I have an Ubuntu 14.04 OS, and I use a Wi-Fi router to access the internet.
When I start capturing packets in Wireshark, I only capture packets where the sender/receiver IP address is my computer's IP address.
How do I catch all packets within range of the Wi-Fi router?
1 answers
As far as I know, usually the Wi-Fi card works in this mode - it gives its machine only the packets it needs, i.e. from its IP. So first you need to switch it to monitoring mode. For example, for the well-known Aircrack-ng utility package, this is done as follows:
$ airmon-ng start wlan0
It is known that not all Wi-Fi cards switch to this mode (you need to look at the compatibility lists, for example, with the same aircrack).
Also here is your question in the Wireshark FAQ.
And here here you can also see the "Turning on monitor mode"section.