payload
Correct for TCP packet, for UDP an example it would be
and so on…
Is this ethernet checksum (http://folk.uio.no/od/tcp-ip-intro/subsection3_2_3.html) something which I need to care about (in addition to the length / checksum fields in the other headers)? Or is this computed automatically?
It is hardware checksum and you won’t even see it on NDIS level.