SRDhcprelay at 23 Feb 2020 02:39:20

<img src="https://jenkins.onosproject.org/view/QA/job/postjob-Fabric3/lastSuccessfulBuild/artifact/SRDhcprelay_onos-2.2_20-builds_graph.jpg", alt="SRDhcprelay", style="width:525px;height:350px;border:0">
commit a7a6f4a4456f68d550883ec2b06958a58dcdc194 (HEAD -] onos-2.2, origin/onos-2.2)
Author: Seyeon Jeong [seyeon@opennetworking.org]
AuthorDate: Wed Feb 19 17:51:05 2020 -0800
Commit: Ray Milkey [ray@onlab.us]
CommitDate: Fri Feb 21 01:13:17 2020 +0000

Fix possible NPE when 't3-troubleshoot-pingall' command on a host without IP addr
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(cherry picked from commit 980eea4a63639bf082570c8bf9e882554921112a)

Case 1: DHCP v4 tests with 4 clients attached to switch directly and 1 server attached to switch directly, with 3 ONOS instances - PASS

Case 2: DHCP v4 tests with 4 clients attached to switch directly and 1 server attached to switch indirectly (via gateway), with 3 ONOS instances - FAIL