The information found in the Ethernet frame trailer would be the error checking code.
Arpa encapsulation must be used to enable Ethernet II frame type on your Ethernet.
Type
type
type
type
Ethernet II
Ethernet Frame Type TCP Sequence Number Source IP Address
balls
MAC addresses only
0X0800, 192.168.254.254
mac address only
The ethernet frame carries the IP (Internet Protocol) The Ethernet frame is made up of the following: 7 BYTE PREAMBLE 1 Byte "Start OF Frame" delimiter 6 byte destination address 6 byte source address 2 byte length or type 46 - 1500 bytes variable 802.2 or ethernet header and data 4 byte Frame Check sequence