Ethernet FCS when capturing wth Wireshark under Linux

Question

Is there some way to get the Frame Check Sequence (FCS) from an ethernet frame when using Wireshark to capture packets under Linux?

Answer 1

The Ethernet wiki page on Wireshark states:

Most Ethernet interfaces also either don't supply the FCS to Wireshark or other applications

so I assume the answer is a no.

Answer 2

The FCS is generated by the sender's ethernet device and decoded by the recipients ethernet device. If the FCS is correct, the payload is passed up to higher layers. If it's not, then the potential frame is discarded.

Because it's added for the exclusive use of the ethernet layer, there's no reason to pass the data up to the operating system. There's no reason for the hardware to include additional capabilities of moving that data out of the card. All modern ethernet devices do onboard FCS processing (and often much more). The only exception would be devices intended to analyze ethernet performance and function.