Re: IPv6 DAD issue

From: Roy <roy_at_marples.name>
Date: Sat, 12 Aug 2023 21:37:07 UTC
Someone could port the change to ifconfig(8) I made to NetBSD to add the -w and -W flags to wait for the tentative and detached flags to clear from the interfaces. This can be used instead of any arbitrary sleep based on the dad count sysctl.

Roy

On 12 August 2023 18:08:42 BST, Benoit Chesneau <benoitc@enki-multimedia.eu> wrote:
>I read different forums and blog [1] and it seems that the DAD issue is occurring offen with jails and is not only related to mce [2] . Is there any trick as of today that would help to fix it? I have tempted to report also on the forum but didn't get any answer yet [3]
>
>I always need for now to remove DA both on the system but also any jails using vnet. Is there any external issue that could cause this issue?
>
>Any help/hint is welcome :)
>
>BenoƮt
>
>[1] https://dan.langille.org/2023/03/10/is-your-jail-not-getting-an-ipv6-address-soon-enough-blame-dad/
>[2] https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=270859
>[3] https://forums.freebsd.org/threads/how-to-solve-error-vnet0-a-looped-back-ns-message-is-detected-during-dad.89888/