Source Address (6 bytes) (Ethernet)

Protocol: Ethernet Ethernet PCI

Field: source address

Length: 6 bytes

Contents: source MAC address

MAC addresses are structured as follows:

IEEE MAC Address

MAC addresses contain a unique station number as well as a manufacturer ID:

Ethernet Manufacturer IDs

These burned-in manufacturer IDs may be replaced by logical addresses. This can be done by special driver command.

Some applications or network architectures use special broadcast/multicast addresses:

Ethernet Multicast/Broadcast Addresses