$ tshark -i en0 -I -Y "wlan.rsn.ie.pmkid" -c 1
Capturing on 'Wi-Fi'
10 packets dropped
0 packets captured
Why is this capture stopping before capturing the specified 1 packet?
The 0 packets captured is a bit misleading.
Since you didn't specify a capture filter, tshark (dumpcap actually) has captured packets; it's just that your display filter isn't displaying any of them because none of the captured packets matched the display filter.
If you want to stop capturing after 1 packet, then you need to specify a suitable capture filter, not a display filter. Refer to the pcap-filter man page for help with capture filters.
It looks like what I want isn't possible.
I want tshark to run until it captures a wlan.rsn.ie.pmkid frame, and then for tshark to stop. Do you know if this is possible?
Asked: 2018-08-09 06:09:41 +0000
Seen: 784 times
Last updated: Aug 09 '18
