diff --git a/dhclient-script b/dhclient-script
index 811e899..af8daf7 100644
--- a/dhclient-script
+++ b/dhclient-script
@@ -1,6 +1,6 @@
 #!/bin/bash
 #
-# Copyright (C) 2010 SUSE LINUX Products GmbH / Novell Inc.
+# Copyright (C) 2010-2014 SUSE LINUX Products GmbH / Novell Inc.
 #
 # Author: Marius Tomaschewski <mt@suse.de>
 #
@@ -11,6 +11,10 @@
 #   It is used by sysconfig alias netcontrol alias ifup-dhcp,
 #   but not by the NetworkManager that is using an own script.
 #
+#   Wicked is using an another dhcp client (runtime conflict).
+#   As sysconfig-network is gone on sles12 and opensuse > 13.1,
+#   this script is obsolete and unsupported.
+#
 
 ##
 ## check mandatory parameters or ignore & exit
@@ -51,6 +55,23 @@ if [ "$DEBUG" = yes ]; then
   set -x
 fi
 
+network_service_conflicts()
+{
+	local _id=`/usr/bin/systemctl --no-pager -p Id show network.service 2>/dev/null`
+	case "${_id#Id=}" in
+	# wicked is using an another dhcp client
+	wicked.service)                 return 1 ;;
+
+	# NetworkManager is using another script
+	#NetworkManager.service)	return 1 ;;
+
+	# sysconfig network were using it, other?
+	network.service|*)              return 0 ;;
+	esac
+}
+
+network_service_conflicts || exit 1
+
 is_ifup_controlled()
 {
   test -f "$SYSCONFIG_RUN_DIR/if-${interface}"
diff --git a/dhcp.changes b/dhcp.changes
index 343bf10..8e7c399 100644
--- a/dhcp.changes
+++ b/dhcp.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Fri Jul 18 11:13:40 UTC 2014 - mt@suse.de
+
+- Fixed to require iproute2 in dhcp-client package (bnc#885399)
+- Disarmed dhclient-script when wicked is the network service,
+  as wicked is using an another dhcp client (runtime conflict),
+  NetworkManager an own script and sysconfig-network is gone on
+  sles12 and opensuse > 13.1, so it is obsolete and unsupported.
+
 -------------------------------------------------------------------
 Tue Jun 10 02:42:32 UTC 2014 - mt@suse.de
 
diff --git a/dhcp.spec b/dhcp.spec
index ec97da5..c6a55e6 100644
--- a/dhcp.spec
+++ b/dhcp.spec
@@ -141,6 +141,7 @@ Group:          Productivity/Networking/Boot/Clients
 Requires:       /sbin/arping
 Requires:       /usr/bin/host
 Requires:       dhcp = %{version}
+Requires:       iproute2
 Requires:       net-tools
 PreReq:         %insserv_prereq %fillup_prereq /bin/cat /bin/mkdir /bin/cp /bin/grep