CRC transmission in ethernet frame

[sarahr202]

Hi everybody,

I hope you are doing fine, this is what I see:

R1------R2

When I ping R1 from R2, I do see Ethernet II framing but do not see CRC.

It could be Wireshark not able to decipher it, but it is my understanding it must be present in Ethernet  frame so receiving device can detect data corruption in transit.

I just want to get your views if you guys ever  seen Ethernet frame without CRC being transmitted.

Thanks and have a good day!!

[Philip D'Ath · Accepted solution]

It is usually not Wireshark that is the issue - it is hardware acceleration in the NIC being used.  The OS offloads things like this to the NIC, so the OS never gets to see it.

[sarahr202]

Thanks Philip, makes sense.