Does FreeBSD do proactive ARP refresh?

[sthaug at nethelp.no]

Followup:

> > >>  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.
> 
> I can confirm that 12.0-CURRENT with the r331098 updates fixes this
> problem for me for locally generated traffic. The ARP entry seems to
> be refreshed around 4 seconds before expiry, and there is no packet
> loss.
> 
> Transit traffic (non locally generated) also works as before, the ARP
> entry is refreshed before expiry and there is no packet loss.
> 
> Thanks for the quick fix! Now waiting for the MFC :-)

Looks like the r331098 fix hasn't been MFCed. With 11.2 released,
could we have MFC of r331098, please?

Steinar Haug, Nethelp consulting, sthaug at nethelp.no