TEC-NOT-051 Ethernet frames, Wireshark and FAT32

An Ethernet network recorder can capture data stored in Ethernet frames and write them to a file using the Wireshark Packet CAPture (PCAP) file format. This paper outlines the process of packing data samples in Ethernet frames for transmission across an Ethernet networked data acquisition system. The following topics are discussed:

  • “26.1 Overview” on page 1
  • “26.2 Encapsulating data in Ethernet frames” on page 1
  • “26.3 Recording Ethernet frames as Wireshark PCAP files” on page 4
  • “26.4 Storing PCAP files in a FAT32 file system” on page 6
  • “26.5 Appendix” on page 7