diff --git a/active_check_traceroute.mkp b/active_check_traceroute.mkp
index 1fa711dfb8738d7caf5ba8e42dfd15a0da11910e..3ad9e2fca4f715f043154a0d90a346fcfc7d2edb 100644
Binary files a/active_check_traceroute.mkp and b/active_check_traceroute.mkp differ
diff --git a/lib/nagios/plugins/check_traceroute b/lib/nagios/plugins/check_traceroute
index dfa229014455cd29ba7a1d06fdf646c2b42bc4e7..e59d9df1180dab60619e29c0d3587e85996874a3 100755
--- a/lib/nagios/plugins/check_traceroute
+++ b/lib/nagios/plugins/check_traceroute
@@ -3,6 +3,19 @@
 # Copyright (C) 2019 tribe29 GmbH - License: GNU General Public License v2
 # This file is part of Checkmk (https://checkmk.com). It is subject to the terms and
 # conditions defined in the file COPYING, which is part of this source code package.
+#
+#
+# adds the following options by thl-cmk[at]outlook[dot]com :
+# - service description suffix
+# - alternate destination address
+# - destination port for UDP/TCP path trace
+# - max hops
+# - queries per hop
+# - source address
+# - source interface (needs root permissions).
+#
+# Source address and source interface uses the "shell=True" option in in
+# the "subprocess.Popen" command. This is highly insecure, so be careful.
 
 # This check does a traceroute to the specified target host
 # (usually $HOSTADDRESS$ itself) and checks which route(s) are
diff --git a/web/plugins/wato/active_checks_routing.py b/web/plugins/wato/active_checks_routing.py
index 474e425250196def5f0ba3ab11432faf62982ad5..a38eccf3e89d09af9187fb4e006725954c39a8eb 100644
--- a/web/plugins/wato/active_checks_routing.py
+++ b/web/plugins/wato/active_checks_routing.py
@@ -129,6 +129,7 @@ def _valuespec_active_checks_traceroute():
                             '(incremented as well, default from 1), or some constant destination port for other '
                             'methods (with default of 80 for \"tcp\", 53 for \"udp\", etc.)'),
                      maxvalue=65535,
+                     default_value=53,
                  ),),
                 ('destination_address',
                  TextAscii(