Lab
Ethernet II
Ethernet II packet builder
Hex preview
Two-way sync: edit fields or hex. Educational encoding — not a full on-wire encoder.
Live dissector
Paste or edit hex above — field tree updates from the declarative dissector registry.
Dissector · ethernet-ii
Hex
No bytes
Fields
Paste hex above to decode.
Ethernet II fields
Hover a field for description.
Checksum sandbox
Ethernet FCSBytes
6
CRC-32 (Ethernet FCS)
DD EB E1 C8
0xDDEBE1C8 · IEEE polynomial reflected; shown big-endian wire order.