Re: Is 00:00:00:00:00:00 special?

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Lloyd Parkes <[email protected]> wrote:
    > I think maybe this line
    > https://nxr.netbsd.org/xref/src/sys/netinet6/in6_ifattach.c#228

That seems like the culprit.
I was thinking that when generating some v6-LL that it wound up creating
something that was multicast, and thus it wound up hearing it's own DAD.

    > On 20/11/2025 16:59, Mouse wrote:
    >> Is the all-zero MAC address special?  Thanks to an unusual hardware
    >> situation, I just booted a SPARC such that le0 thinks its MAC is
    >> all-0-bits.  (Booted from disk, not netboot, to be sure.)
    >>
    >> But IPv6 failed to attach at boot time, saying it failed to get EUI64,
    >> which is why I'm asking.  I can't recall hearing of any way in which
    >> the all-0 MAC would be invalid, but _something_ seems to think it is;
    >> it looks to me like a perfectly good globally-administered unicast
    >> address.  It seems to work fine for IPv4, though of course (like any
    >> MAC) there can be at most one such in any broadcast domain unless
    >> you're doing something fancy.
    >>
    >> Anybody happen to know?
    >>
    >> /~\ The ASCII				  Mouse
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