getting tcpdump to write to pcap format

 dinosaur, tech  Comments Off on getting tcpdump to write to pcap format
Nov 032014
 

I wouldn’t think I’d be writing something like this, but….. Apple changed the default of tcpdump to writeout pcap-ng format, which wireshark doens’t understand by default. Wasn’t sure what was up, but a quick search didn’t get any hits… turns out the -y flag is the key (at least, Mavericks+.) $ sudo tcpdump -w /tmp/1 tcpdump: data link type PKTAP tcpdump: listening on pktap, link-type PKTAP (Packet Tap), capture […]

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