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To: vas@mpeks.tomsk.su, bu7cher@yandex.ru
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Subject: Re: get rid of the eui64 address
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Victor Sudakov <vas@mpeks.tomsk.su> wrote:

> Andrey V. Elsukov wrote:
> > 
> > Seems your ifconfig(8) is a bit out of day.
>
> My ifconfig(8) is from 11.2-RELEASE.

> > My manual says:
> >      autoconf
> >              Set the IPv6 autoconfigured address bit.
> > 
> >      -autoconf
> >              Clear the IPv6 autoconfigured address bit.
> > 
>
> I have no idea when setting the autoconfigured address bit manually
> could be necessary, but at least it makes sense.

It was changed post 11.2-release:

https://svnweb.freebsd.org/base?view=revision&revision=335732

Author:	trasz
Date:	Wed Jun 27 19:28:37 2018 UTC (3 months, 3 weeks ago)
Changed paths:	1
Log Message:	Fix description for the "autoconf" ifconfig(8) flag; it's an address property, not something you set for an interface.

MFC after:	2 weeks

cheers