tree a9a8ee2d9054f1b18a698cd607cd11e8a298cc96
parent bd09d6e07eff9bc41576a6c59272cfd6d85c583a
author Hyunsun Moon <hyunsun.moon@gmail.com> 1470252194 -0700
committer Gerrit Code Review <gerrit@onlab.us> 1470270331 +0000

Fixed to add gateway node from ICMP handler also

And made the gateway store or group update synchronized

Change-Id: I10fc391e9059772e5da8322997a994db26a096b3