Change MAC Address using macchanger.
Packet Sniffing Basics Airodump-ng
airodump-ng is a program part of the aircrack-ng package, it's a packet sniffer that allows us to capture all the packets that are in our wifi card range. We can also use it to just scan all wifi networks around us and gather info about them.
Using Airodump-ng:
1. Enable monitor mode
airmon-ng start [interface]
Enabling Monitor Mode Manually.
iwconfig [interface] mode monitor
Enabling Monitor Mode Using airmon-ng
airmon-ng check kill airmon-ng start [interface]
2. Start airodump-ng
airodump-ng [interface]