Moved: Reply To: Ethernet Introduction for CCNA R&S

Lessons Discussion
1

hi rene,

above you write:

BC which stands for broadcast; If your Ethernet frame is a broadcast than you have to set this bit to 1.

and

Local: this bit has to be set when you change your MAC address. Normally a MAC address is unique on the planet; if you change it it’s only locally unique within your network.

But if your ethernet frame is a broadcast than it would be FF:FF:FF:FF:FF:FF, right? you mean that in order to get all F´s the first bit would need to be set to 1?
And if you change your mac address you can change it to whatever you like too, or not? why would i need to set this bit to 1?

thanks

florian

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