diff --git a/tests/2015-08/07-multi-hop/task03.py b/tests/2015-08/07-multi-hop/task03.py
new file mode 100755
index 00000000..b88cf79d
--- /dev/null
+++ b/tests/2015-08/07-multi-hop/task03.py
@@ -0,0 +1,56 @@
+#!/usr/bin/env python
+
+import pexpect
+import os
+import sys
+import time
+import random
+from subprocess import call
+from subprocess import check_output
+from subprocess import CalledProcessError
+import shlex
+
+IOTLAB_ARCH = "m3"
+IOTLAB_SITE = "grenoble"
+IOTLAB_EXP_NAME = "RIOT_EXP_RPL_TEST"
+IOTLAB_EXP_DUR = 3
+
+if len(sys.argv) < 2:
+    print("Usage: %s <RIOT directory>" % (sys.argv[0]))
+    sys.exit(1)
+else:
+    os.chdir(sys.argv[1])
+
+os.chdir("examples/gnrc_networking")
+
+print("Run task #03")
+
+iotlabrc = os.path.expanduser('~') + os.path.sep + ".iotlabrc"
+user_cmd = "cut -f1 -d: " + iotlabrc
+user = check_output(shlex.split(user_cmd), universal_newlines=True).rstrip()
+print("Authenticated as user: %s" % user)
+
+while True:
+    try:
+        nodes = sorted(random.sample(range(358), 20))
+        print("Start Experiment with nodes: %s" % nodes)
+        exp_cmd = "experiment-cli submit -n {0} -d {1} -l {2},{3},{4}".format(IOTLAB_EXP_NAME,
+                    IOTLAB_EXP_DUR, IOTLAB_SITE, IOTLAB_ARCH, "+".join(str(v) for v in nodes))
+        expId = check_output(shlex.split(exp_cmd), universal_newlines=True).rstrip() \
+                .split("\n")[1].split(": ")[1]
+        break
+    except CalledProcessError as err:
+        print(err.output)
+print("Experiment started with ID {0}".format(expId))
+wait_cmd = "experiment-cli wait -i {0}".format(expId)
+call(shlex.split(wait_cmd))
+
+"""
+TODO
+* Connect to testbed
+  socat tcp-listen:20000,fork,reuseaddr exec:'ssh <login>@grenoble.iot-lab.info "serial_aggregator -i <exp_id>"'
+* Check fib of all nodes and retrieve longest path
+  Should be > 2
+* ping longest path
+"""
+print("SUCCESS")