--- ipv6mon/files/ipv6mon.in	2013-04-02 17:46:28.000000000 +0200
+++ ipv6mon/files/ipv6mon.in	2013-07-05 17:05:56.000000000 +0200
@@ -6,13 +6,51 @@ 
 # BEFORE: LOGIN
 # KEYWORD: nojail shutdown
 
+# To use ipv6mon with multiple interfaces, the following additional steps
+# are needed (example with 2 interfaces, em0 and em1):
+# 
+# Copy the %%PREFIX%%/etc/ipv6mon.conf to %%PREFIX%%/etc/ipv6mon-em0.conf and
+# to %%PREFIX%%/etc/ipv6mon-em1.conf
+# In both copied config files adjust 'NetworkInterface' accordingly with em0
+# and em1 and also adjust the 'LockFile' accordingly to
+# /var/run/ipv6mon-em0.pid and /var/run/ipv6mon-em1.pid.
+# Add in /etc/rc.conf the additional line:
+# ipv6mon_interfaces="em0 em1"
+
+
 . /etc/rc.subr
 
 name="ipv6mon"
 rcvar="${name}_enable"
 command="%%PREFIX%%/sbin/${name}"
-pidfile="/var/run/${name}.pid"
 required_files="%%PREFIX%%/etc/${name}.conf"
 
 load_rc_config $name
-run_rc_command "$1"
+
+case ${ipv6mon_interfaces} in
+	'')  
+		pidfile="/var/run/${name}.pid"
+		run_rc_command "$1"
+	;;
+
+	*)
+		case "$1" in
+			*start)
+				for interface in ${ipv6mon_interfaces}; do
+				eval options=\$ipv6mon_${interface}_options
+				command_args="${options} -c %%PREFIX%%/etc/${name}-${interface}.conf"
+				pidfile="/var/run/${name}-${interface}.pid"
+				run_rc_command "$1"
+				done
+			;;
+
+			*stop)
+				for interface in ${ipv6mon_interfaces}; do
+				eval options=\$ipv6mon_${interface}_options
+				pidfile="/var/run/${name}-${interface}.pid"
+				run_rc_command "$1"
+				done
+			;;
+		esac
+	;;
+esac