[PATCH]: The 6to4 stf0 interface flapping in/out of tentative in FreeBSD 11

[Viktor Dukhovni]

> On Jun 22, 2018, at 1:41 PM, Andrey V. Elsukov <bu7cher at yandex.ru> wrote:
> 
> Your change looks reasonable due to IPv6 DAD procedure does check for
> presence of IFF_DRV_RUNNING flag. But actually it seems the right
> solution should be disabling DAD for if_stf(4) interface.
> IPv6 DAD requires that given interface should be multicast capable, but
> for if_stf(4) it is not true.
> Will it help if you use `ifconfig stf0 inet6 no_dad` before assigning
> IPv6 address?

For the record, per off-list email, just disabling DAD was not enough.
Anything else you'd like me to try?

-- 
	Viktor.