Wireshark Why can't I crawl the full Ethernet package or the physical link package? such as the CRC check field for Ethernet (4 bytes)

Ethernet

Https://serverfault.com/questions/521443/can-wireshark-capture-an-entire-ethernet-frame-including-preamble-crc-and-inter

My question Is:is there a to capture and display the entire Ethernet frame using Wireshark?

If you had a network adapter that captures the entire frame and supplies it to the host, a driver for that adapter T Hat sets up the adapter to does, and a capture mechanism in the OS (or otherwise connected to Libpcap/winpcap) that's all oWS that is supplied.

I know of NO Ethernet adapters that supply the preamble and SFD.

At least some adapters might, however, supply the Crc/fcs. (The adapter on a MAC I used many years ago did; I Don ' t think the adapters in current Macs do.) Wireshark attempts to guess whether an Ethernet packet have an FCS and, if it thinks it does, handles it as such. (I added the code to do, Wireshark when I am using the Mac in question.)

If not, was it possible to achieve this without the use of additional hardware?

No, as the previous part of the answer suggests.

Hilscher Gesellschaft dealt Systemautomation MbH have a line of netanalyzer devices that can is put into "transparent mode"; In that mode, the preamble, SFD, and FCS is all present, and Wireshark can -read pcap files produced by those Dev Ices.

I think Endace ' s DAG cards can supply the FCS, but they can ' t supply the preamble or SFD, as far as I know.

Wireshark Why can't I crawl a full Ethernet package or a physical link package? For example, the CRC check field for Ethernet (4 bytes)