Tcpdump for wireless network
 

Am working on a project for which I need to get the dump .
What am exactly trying to do is , start a download , and initialize to capture tcpdump and stop when download is complete .
Am doing this on a wireless network . The command I used is


Sudo tcpdump –i wlan0 –w xyz.dmp

this gives me an error -tcpdump: wlan: You don't have permission to capture on that device
((no devices found) /dev/bpf0: Permission denied)

What command should I use to capture the dump ?

Thank You

Either wlan0 doesn't exist (have you checked) or the interface does not support promicuous mode (no rescue)

There is no fundamental reason why tcpdump cannot listen on wlan0.

jlinkels