tree 8b30c32ced375cdaf5112e5afd6cc5ed47a204e6
parent 3b1373715b520512e7f1ce60a17848270bed18a5
author Daniel Ginsburg <daniel.ginsburg@harmonicinc.com> 1528497839 +0300
committer Charles Chan <rascov@gmail.com> 1528761717 -0700

DHCPv[46] relay must replace the route instead of adding an extra NH

Currently DHCP relay adds an extra next-hop to an already existing route (if any). Instead
it must replace it with the new one.

This patch adds replaceRoute method to the RouteStore interface and corresponding implementations.
The DHCP relay implementation uses the new method instead of updateRoute

Change-Id: I601613168b83290db4e53d2aae5c86e963ae17b0