subnet, and that host is down/turned off, the Tnm::icmp echo command
will fail rather than return an unreachable indication on some
occasions. This is because the nmicmpd program will occasionally
get an EHOSTDOWN error when doing a sendto() when the ARP entry
resolution times out.
This is a problem since this API can support a list of hosts to
send traffic to, and a single error as described will abort the
entire operation.
(The reviewer claims that he could not duplicate the problem,
but that the patch seems like a good idea anyway.)
PR: ports/24940
Submitted by: Louis Mamakos <louie@transsys.com>
Reviewed by: Stefan Eßer <se@FreeBSD.org>