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Re: [Qemu-discuss] any restriction on the guest mac addr when using tap
Re: [Qemu-discuss] any restriction on the guest mac addr when using tap networking?
Mon, 29 Apr 2013 16:09:18 +0000
problem solved, thank you very much! i wasn't aware of the first rule at that
On Mon, Apr 29, 2013 at 02:26:14AM +0200, address@hidden wrote:
> - In the first byte, the least significant bit should be 0 for
> addresses that
> can be assigned to an adapter.
> - In the first byte, the second-to-least significant bit (the 2's
> bit) should
> be 1 for made up addresses.
> - If the first byte second-to-least significant bit is not set, then
> the first
> 3 bytes should be a vendor prefix assigned to someone who will let you
> misuse their prefix for virtual machines, there are very few of those.
> So the second hex digit should be 2, 6, A or E and odd values are extra bad.
> Good: 12:34:56:78:9a:bc
> Bad: 14:34:56:78:9a:bc
> Very bad: 13:34:56:78:9a:bc