diff --git a/os/net/app-layer/coap/coap.c b/os/net/app-layer/coap/coap.c
index da466e6d7..bcec49cee 100644
--- a/os/net/app-layer/coap/coap.c
+++ b/os/net/app-layer/coap/coap.c
@@ -544,8 +544,6 @@ coap_parse_message(void *packet, uint8_t *data, uint16_t data_len)
       return BAD_REQUEST_4_00;
     }
 
-    option_number += option_delta;
-
     PRINTF("OPTION %u (delta %u, len %zu): ", option_number, option_delta,
            option_length);
 
diff --git a/tests/17-tun-rpl-br/06-native-coap.sh b/tests/17-tun-rpl-br/06-native-coap.sh
new file mode 100755
index 000000000..a42424ee4
--- /dev/null
+++ b/tests/17-tun-rpl-br/06-native-coap.sh
@@ -0,0 +1,62 @@
+#!/bin/bash
+
+# Contiki directory
+CONTIKI=$1
+# Test basename
+BASENAME=06-native-coap
+
+IPADDR=fd00::302:304:506:708
+
+declare -i OKCOUNT=0
+declare -i TESTCOUNT=0
+
+echo "Enabling IPv6"
+sudo sysctl -w net.ipv6.conf.all.disable_ipv6=0
+
+# Starting Contiki-NG native node
+echo "Starting native CoAP server"
+make -C $CONTIKI/examples/coap > make.log 2> make.err
+sudo $CONTIKI/examples/coap/coap-example-server.native > node.log 2> node.err &
+CPID=$!
+sleep 2
+
+# Send CoAP requests
+echo "Sending CoAP requests"
+
+rm -f $BASENAME.log
+for TARGET in .well-known/core test/push; do
+  echo "Get $TARGET" | tee -a $BASENAME.log
+  coap get coap://[$IPADDR]/$TARGET 2>&1 | tee coap.log
+  cat coap.log >> $BASENAME.log
+  # Fetch coap status code (not $? because this is piped)
+  SUCCESS=`grep -c  '(2.05)' coap.log`
+  if [ $SUCCESS == 1 ]; then
+    printf "> OK\n"
+    OKCOUNT+=1
+  else
+    printf "> FAIL\n"
+  fi
+  TESTCOUNT+=1
+done
+
+echo "Closing native node"
+sleep 2
+pgrep hello-world | sudo xargs kill -9
+
+if [ $TESTCOUNT -eq $OKCOUNT ] ; then
+  printf "%-40s TEST OK    %3d/%d\n" "$BASENAME" "$OKCOUNT" "$TESTCOUNT" > $BASENAME.testlog;
+else
+  echo "==== make.log ====" ; cat make.log;
+  echo "==== make.err ====" ; cat make.err;
+  echo "==== node.log ====" ; cat node.log;
+  echo "==== node.err ====" ; cat node.err;
+  echo "==== $BASENAME.log ====" ; cat $BASENAME.log;
+
+  printf "%-32s TEST FAIL  %3d/%d\n" "$BASENAME" "$OKCOUNT" "$TESTCOUNT" > $BASENAME.testlog;
+fi
+
+rm -f  make.log make.err node.log node.err coap.log
+
+# We do not want Make to stop -> Return 0
+# The Makefile will check if a log contains FAIL at the end
+exit 0
diff --git a/tools/docker/Dockerfile b/tools/docker/Dockerfile
index ac3e975cb..14c1636ae 100644
--- a/tools/docker/Dockerfile
+++ b/tools/docker/Dockerfile
@@ -77,6 +77,12 @@ RUN echo "#!/bin/bash\nant -Dbasedir=${COOJA} -f ${COOJA}/build.xml run" > ${HOM
 # Enable IPv6 -- must be done at runtime, not in Dockerfile
 #RUN sudo sysctl -w net.ipv6.conf.all.disable_ipv6=0
 
+# Install coap-cli
+RUN sudo apt-get install -y npm \
+  && sudo apt-get clean \
+  && sudo npm install coap-cli -g \
+  && sudo ln -s /usr/bin/nodejs /usr/bin/node
+
 # Working directory
 WORKDIR ${CONTIKI_NG}