W10L5 Ethernet Addresses Flashcards
How many bits is a mac address?
48 bits (6 bytes)
Ethernet has a flat addressing scheme - what does this mean?
the address of a particular host doesn’t define anything about where that host is
What does MAC stand for?
Medium Access Control
Promiscuous mode
Receiver looks at every passing message (Sends every message it receives to OS)
Broadcast MAC address
FF:FF:FF:FF:FF:FF
Multicast MAC address
X[bbb1]:xx:xx:xx:xx
The least significant bit of the most significant byte is 1
If the second hex character odd then multicast
even then unicast
Unicast MAC address
X[bbb1]:xx:xx:xx:xx
The least significant bit of the most significant byte is 1
If the second hex character odd then multicast
even then unicast
the address of a particular host doesn’t define anything about where that host is
Ethernet has a flat addressing scheme - what does this mean?
Receiver looks at every passing message (Sends every message it receives to OS)
Promiscuous mode