tree ac31d24dd08618c0d51f136e63a9750ecb5f780c
parent 47eb0d48e2967f959d799c2d2fb01e8f0681373d
author Pavlin Radoslavov <pavlin@onlab.us> 1415227688 -0800
committer Pavlin Radoslavov <pavlin@onlab.us> 1415227688 -0800

Updated the ProxyArpManager to use Ip4Address instead of
the more generic IpAddress.

The ProxyArpManager is defined and works only for IPv4, hence
we should use the concrete IPv4 addresses.

Change-Id: Ie43ca17ce03ea86d2efb6b33f55a5dcafb2ab985