Supports IPv6 address for scp and rsync

ONOS-7680

Change-Id: Ica7466715c64765310bfc7bf34126ed02d1818b7
diff --git a/tools/test/scenarios/bin/mininet-trellis b/tools/test/scenarios/bin/mininet-trellis
index 8be1922..4ec52d6 100755
--- a/tools/test/scenarios/bin/mininet-trellis
+++ b/tools/test/scenarios/bin/mininet-trellis
@@ -1,6 +1,7 @@
 #!/bin/bash
 
 remote=$ONOS_USER@$OCN
+remote_scp=$ONOS_USER@[$OCN]
 mininet="ssh -t -t $remote screen -L -S mininet"
 
 CONTROLLERS="$OC1"
@@ -13,12 +14,12 @@
 
 echo >/tmp/invoke_trellis_hag "cd routing/trellis && sudo ./trellis_hag.py -c '$CONTROLLERS'"
 chmod +x /tmp/invoke_trellis_hag
-scp /tmp/invoke_trellis_hag $remote:
+scp /tmp/invoke_trellis_hag $remote_scp:
 
 ssh $remote "rm -f $log; echo logfile flush 1 > ~/.screenrc"
     (
     $mininet ./invoke_trellis_hag
-    scp $remote:$log /tmp/mininet.log
+    scp $remote_scp:$log /tmp/mininet.log
     ssh $remote rm -f $log
     ) &