Does FreeBSD do proactive ARP refresh?

[Rodney W. Grimes]

> 18.03.2018, 03:31, "Rodney W. Grimes" <freebsd-rwg at pdx.rh.cn85.dnsmgr.net>:
> >> ?17.03.2018, 21:23, "Rodney W. Grimes" <freebsd-rwg at pdx.rh.cn85.dnsmgr.net>:
> >> ?>> ?16.03.2018, 14:50, "sthaug at nethelp.no" <sthaug at nethelp.no>:
> >> ?>> ?..
> >> ?>> ?>> ?And thank you for that suggestion! The packet loss during ARP refresh
> >> ?>> ?>> ?(of the destination address connected to the output interface) does
> >> ?>> ?>> ?*not* happen when the box is forwarding! It only happens with locally
> >> ?>> ?>> ?generated traffic.
> >> ?>> ?Should be fixed by r331098.
> >> ?>
> >> ?> Thanks for the quick fix, do we know about when this breakage started?
> >> ?I guess it's something like r297225.
> >
> > SO 2 years ago, meaning it effects stable/11,
> > and may of been merged to stable/10?
> Side note: if one has monitoring which does ICMP checks, it will mask the issue because icmp replies don't use route caching.
> Typical story  when the observer changes the state of an observed object :-).

Also perhaps why it has not been reported before, as other side effects
have caused it to be a pretty invisible issue.

> IIRC it was not merged to stable/10.
> >
> > Do you plan to MFC your fix?
> Yes, I do :-)

For some reason the MFC: 2 weeks did not register when I read
the commit.  

-- 
Rod Grimes                                                 rgrimes at freebsd.org