default file type for wireshark packet capture

Tshark -r dump.pcapng -T fields -e pkt_comment -R pkt_comment You can, for example, use tshark to list all annotations in a PcapNG file with the following command:

These comments, which are called “annotations”, are available in Wireshark and Tshark via the display filter named “pkt_comment”. Text comments can be added and saved to individual frames.This list includes attributes like interface name, dropped packets and used capture filter. There is a long list of metadata attributes that can be stored about each interface.Wireshark and dumpcap automatically tags generated PcapNG files this way. PcapNG trace files can be tagged with metadata info about what OS, hardware and sniffer application that was used to capture the traffic.This even works when the interfaces have different data link types, such as Ethernet, 802.11 (WiFi) and PPP. Traffic captured from multiple interfaces can be stored in a single file.Here are a few of the features that are available in the new PcapNG format: This new format isn't just an update of the old PcapNG is short for “PCAP Next Generation Dump File Format”. So what does this mean other than a longer file extension? Users of Wireshark 1.8.0 (or later) have most likely noticed that the default output file format has changed from

Default file type for wireshark packet capture