diff --git a/heartbeat/VIPArip b/heartbeat/VIPArip
index cd3ca4d7f..5fc7c94c9 100755
--- a/heartbeat/VIPArip
+++ b/heartbeat/VIPArip
@@ -1,302 +1,314 @@
 #!/bin/sh
 #
 # 	License:	GNU General Public License (GPL) 
 # 	Support:	users@clusterlabs.org
 #	Author: 	Huang Zhen <zhenhltc@cn.ibm.com>
 # 	Copyright (c) 	2006 International Business Machines
 #
 #	Virtual IP Address by RIP2 protocol.
 #	This script manages IP alias in different subnet with quagga/ripd.
 #	It can add an IP alias, or remove one.
 #	
 #	The quagga package should be installed to run this RA
 #
 #	usage: $0 {start|stop|status|monitor|validate-all|meta-data}
 #
 #	The "start" arg adds an IP alias.
 #	Surprisingly, the "stop" arg removes one. :-)
 #
 #       OCF parameters are as below
 #       OCF_RESKEY_ip	The IP address in different subnet
 #       OCF_RESKEY_nic	The nic for broadcast the route information
 #
 #######################################################################
 # Initialization:
 
 : ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
 . ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
 
 RIPDCONF=$HA_RSCTMP/VIPArip-ripd.conf
 ZEBRA=/usr/sbin/zebra
 RIPD=/usr/sbin/ripd
 USAGE="usage: $0 {start|stop|status|monitor|validate-all|meta-data}";
 
+# Parameter defaults
+
+OCF_RESKEY_ip_default=""
+OCF_RESKEY_nic_default="eth0"
+OCF_RESKEY_zebra_binary_default="${ZEBRA}"
+OCF_RESKEY_ripd_binary_default="${RIPD}"
+
+: ${OCF_RESKEY_ip=${OCF_RESKEY_ip_default}}
+: ${OCF_RESKEY_nic=${OCF_RESKEY_nic_default}}
+: ${OCF_RESKEY_zebra_binary=${OCF_RESKEY_zebra_binary_default}}
+: ${OCF_RESKEY_ripd_binary=${OCF_RESKEY_ripd_binary_default}}
+
 #######################################################################
 
 meta_data() {
 cat <<END
 <?xml version="1.0"?>
 <!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
 <resource-agent name="VIPArip">
 <version>1.0</version>
 
 <longdesc lang="en">
 Virtual IP Address by RIP2 protocol.
 This script manages IP alias in different subnet with quagga/ripd.
 It can add an IP alias, or remove one.
 </longdesc>
 <shortdesc lang="en">Manages a virtual IP address through RIP2</shortdesc>
 
 <parameters>
 
 <parameter name="ip" unique="1" required="1">
 <longdesc lang="en">
 The IPv4 address in different subnet, for example "192.168.1.1".
 </longdesc>
 <shortdesc lang="en">The IP address in different subnet</shortdesc>
-<content type="string" default="" />
+<content type="string" default="${OCF_RESKEY_ip_default}" />
 </parameter>
 
 <parameter name="nic" unique="0">
 <longdesc lang="en">
 The nic for broadcast the route information.
 The ripd uses this nic to broadcast the route information to others
 </longdesc>
 <shortdesc lang="en">The nic for broadcast the route information</shortdesc>
-<content type="string" default="eth0"/>
+<content type="string" default="${OCF_RESKEY_nic_default}"/>
 </parameter>
 
 <parameter name="zebra_binary" unique="0">
 <longdesc lang="en">
 Absolute path to the zebra binary.
 </longdesc>
 <shortdesc lang="en">zebra binary</shortdesc>
-<content type="string" default="$ZEBRA"/>
+<content type="string" default="${OCF_RESKEY_zebra_binary_default}"/>
 </parameter>
 
 <parameter name="ripd_binary" unique="0">
 <longdesc lang="en">
 Absolute path to the ripd binary.
 </longdesc>
 <shortdesc lang="en">ripd binary</shortdesc>
-<content type="string" default="$RIPD"/>
+<content type="string" default="${OCF_RESKEY_ripd_binary_default}"/>
 </parameter>
 
 </parameters>
 
 <actions>
 <action name="start"   timeout="20s" />
 <action name="stop"    timeout="20s" />
 <action name="monitor" depth="0"  timeout="20s" interval="5s" />
 <action name="validate-all"  timeout="20s" />
 <action name="meta-data"  timeout="5s" />
 </actions>
 </resource-agent>
 END
 exit $OCF_SUCCESS
 }
 
 usage() {
   echo $USAGE >&2
 }
 
 new_config_file() {
 	echo new_config_file $1 $2 $3
 	cat >$RIPDCONF <<END
 hostname ripd
 password zebra
 debug rip events
 debug rip packet
 debug rip zebra
 log file /var/log/quagga/quagga.log
 router rip
 !nic_tag
  no passive-interface $2
  network $2
  distribute-list private out $2
  distribute-list private in $2
 !metric_tag
  redistribute connected metric $3
 !ip_tag
 access-list private permit $1/32
 access-list private deny any
 END
 }
 check_params() {
 	if [ x"$OCF_RESKEY_ip" = x ]
 	then
 		ocf_log err "ip is a required parameter"
 		exit $OCF_ERR_CONFIGURED
 	fi
 }
 set_metric() {
 	echo set_metric $1
 	sed "s/redistribute connected metric .*/redistribute connected metric $1/g" $RIPDCONF > $RIPDCONF.tmp
 	cp $RIPDCONF.tmp $RIPDCONF
 }
 
 add_ip() {
 	echo add_ip $1
 	sed "s/ip_tag/ip_tag\naccess-list private permit $1\/32/g" $RIPDCONF > $RIPDCONF.tmp
 	cp $RIPDCONF.tmp $RIPDCONF
 }
 
 del_ip() {
 	echo del_ip $1
 	sed "/$1/d" $RIPDCONF > $RIPDCONF.tmp
 	cp $RIPDCONF.tmp $RIPDCONF
 	if $GREP "access-list private permit" $RIPDCONF>/dev/null 
 	then
 		echo some other IP is running
 		reload_config
 	else
 		stop_quagga
 		echo remove $RIPDCONF
 		rm $RIPDCONF
 	fi
 	
 }
 
 add_nic() {
 	echo add_nic $1
 	if $GREP "network $1" $RIPDCONF >/dev/null 
 	then
 		echo the nic is already in the config file
 	else
 		sed "s/nic_tag/nic_tag\n no passive-interface $1\n network $1\n distribute-list private out $1\n distribute-list private in $1/g" $RIPDCONF > $RIPDCONF.tmp
 		cp $RIPDCONF.tmp $RIPDCONF
 	fi
 }
 
 reload_config() {
 	echo reload_config
 	echo $RIPDCONF:
 	cat $RIPDCONF
 	echo killall -SIGHUP ripd
 	killall -SIGHUP ripd
 }
 
 start_quagga() {
 	echo start_quagga
 	echo $RIPDCONF:
 	cat $RIPDCONF
 	echo $ZEBRA -d
 	$ZEBRA -d
 	echo $RIPD -d -f $RIPDCONF
 	$RIPD -d -f $RIPDCONF
 }
 
 stop_quagga() {
 	echo stop_quagga
 	echo $RIPDCONF:
 	cat $RIPDCONF
 	echo killall -SIGTERM ripd
 	killall -SIGTERM ripd
 	echo killall -SIGTERM zebra
 	killall -SIGTERM zebra
 }
 
 start_rip_ip() {
 	echo start_rip_ip
 	check_params	
 
 	if [ x"$OCF_RESKEY_nic" = x ]
 	then
-		echo OCF_RESKEY_nic is null, set to eth0
-		OCF_RESKEY_nic="eth0"
+		echo OCF_RESKEY_nic is null, set to ${OCF_RESKEY_nic_default}
+		OCF_RESKEY_nic="${OCF_RESKEY_nic_default}"
 	fi
 	
 	status_rip_ip
 	case $? in
 	$OCF_SUCCESS)
 		ocf_log info "already running"
 		exit $OCF_SUCCESS
 		;;
 	$OCF_NOT_RUNNING)
 		;;
 	*)
 		ocf_log info "state undefined, stopping first"
 		stop_rip_ip
 		;;
 	esac
 
 	$IP2UTIL addr add $OCF_RESKEY_ip/32 dev lo          
 	if [ -f "$RIPDCONF" ]
 	then
 		# there is a config file, add new data(IP,nic,metric) 
 		# to the existing config file.
 		add_ip $OCF_RESKEY_ip
 		add_nic $OCF_RESKEY_nic
 		set_metric 1
 		reload_config
 		echo sleep 3
 		sleep 3
 		set_metric 3
 		reload_config
 	else
 		new_config_file $OCF_RESKEY_ip $OCF_RESKEY_nic 1
 		start_quagga
 		echo sleep 3
 		sleep 3
 		set_metric 3
 		reload_config
 	fi
 	return $OCF_SUCCESS
 }
 
 stop_rip_ip() {
 	echo stop_rip_ip
 	check_params
 	status_rip_ip
 	if [ $? = $OCF_NOT_RUNNING ]
 	then
 		exit $OCF_SUCCESS
 	fi
 	$IP2UTIL addr del $OCF_RESKEY_ip dev lo
 	echo sleep 2
 	sleep 2
 	del_ip	$OCF_RESKEY_ip
 	return $OCF_SUCCESS
 }
 
 status_rip_ip() {
 	check_params
 	if $IP2UTIL addr | $GREP $OCF_RESKEY_ip >/dev/null 
 	then
 		if $GREP $OCF_RESKEY_ip $RIPDCONF >/dev/null 
 		then
 			if pidof ripd >/dev/null
 			then
 				return $OCF_SUCCESS
 			fi
 		fi
 		return $OCF_ERR_GENERIC
 	fi
 	return $OCF_NOT_RUNNING
 }
 
 if
   [ $# -ne 1 ]
 then
   usage
   exit $OCF_ERR_ARGS
 fi
 
 [ x != x"$OCF_RESKEY_zebra_binary" ] &&
 	ZEBRA=$OCF_RESKEY_zebra_binary
 [ x != x"$OCF_RESKEY_ripd_binary" ] &&
 	RIPD=$OCF_RESKEY_ripd_binary
 
 case $1 in
   start)	start_rip_ip;;
   stop)		stop_rip_ip;;
   status)	status_rip_ip;;
   monitor)	status_rip_ip;;
   validate-all)	check_binary $IP2UTIL
 		exit $OCF_SUCCESS;;
   meta-data)	meta_data;;
   usage)	usage; exit $OCF_SUCCESS;;
   *)		usage
  		exit $OCF_ERR_UNIMPLEMENTED
 		;;
 esac