Re: upstream systemd discussion about MACAddressPolicy for bonds and bridges

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On 5/10/22 02:05, Tom Hughes via devel wrote:
> On 10/05/2022 03:12, Dusty Mabe wrote:
> 
>> Just wanted to point interested people in the direction of an upstream
>> discussion about how (by default) the MAC address should get set for
>> bond and bridge devices.
>>
>> https://lists.freedesktop.org/archives/systemd-devel/2022-May/047893.html
>>
>> A few of us were originally going to propose a change to Fedora to change
>> the current behavior back, but it was suggested we take the discussion
>> upstream to hash out the merits there.
> 
> All I can say is, no, just leave it alone.
> 
> Having fixed all my machines two years ago when it stopped generating
> persistent addresses I have just spent this weekend doing it again now
> that F36 has gone back to them.

I'm not aware of any change in behavior in F36, but maybe I missed something.

> 
> I don't care what address my bridges have, so long as it is fixed so
> that DHCP can allocate addresses against it, but I do prefer not to
> have to fix all my DHCP and DNS every time the policy flip flops and
> upgrades break my networks!
> 

With the current policy you'll get a new MAC every time you re-install
a machine. Is that what you want? 

The upstream proposal is to make it based on the actual MAC of the NIC(s)
again.

Dusty
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