Comment 4 for bug 1485804

Reviewed: https://review.opencontrail.org/13340
Committed: http://github.org/Juniper/contrail-vrouter/commit/cfb0524933c1bcbfc895613d53f5db482e4fef17
Submitter: Zuul
Branch: R2.20

commit cfb0524933c1bcbfc895613d53f5db482e4fef17
Author: Divakar <email address hidden>
Date: Wed Aug 26 17:39:11 2015 +0530

No source IP lookup for ARP requests from BMS

For the packets from VM to an ECMP destination we are forcing the
packets to be L3 routed. When ARP request comes for that VM from one of
the ECMP sources, though we have the stiching for VM's IP we give
Vhost's MAC to route the packets as packets need to be routed in this
direction as well. This functioanlity is added with the fix for the bug
1472796.
But the fix for the above bug should not handle the ARP request coming
from BMS (in TSN) as TSN is never a gateway for BMS. Such ARP request
should be flooded. So the fix is to not force the L3 if ARP request is
from BMS.

Change-Id: Ib2626f27a89d34cd98b04e6084aac12ca8eb4ac9
closes-bug: #1485804