VM and CT not accessible VS MAC Prefix address

[gvdb]

Hi.
I 've got some troubles with VM and CT haven't access to network.
After figure out, i found the trouble. It was a MAC prefix trouble.

In fact I typing '69' for making sure to do not have some hardware conflict. But it doesn't support i think.
I replace it by a simple '00' and all works.

Have you somes iinformations about MAC address limitations ?
Thanks

 

[Richard]

Hi.
I 've got some troubles with VM and CT haven't access to network.
After figure out, i found the trouble. It was a MAC prefix trouble.

In fact I typing '69' for making sure to do not have some hardware conflict. But it doesn't support i think.
I replace it by a simple '00' and all works.

Have you somes iinformations about MAC address limitations ?

The first Byte of MAC address for virtual NICs should have the following binary format:

0 0 0 0 0 0 1 0

i.e.

x2:xx:xx:xx:xx:xx
x6:xx:xx:xx:xx:xx
xA:xx:xx:xx:xx:xx
xE:xx:xx:xx:xx:xx

e.g.

66:11:22:33:44:55

but not

69:xx:xx:xx:xx:xx

see also https://en.wikipedia.org/wiki/MAC_address#/media/File:MAC-48_Address.svg