SHELL=/bin/sh
PATH=/usr/bin:/usr/sbin:/sbin:/bin 
#Minuten #Stunden #Tag #Monat #Wochentag #Befehl
*/5 *  * * * PREF=`ifconfig br-lan | awk '/Global/ { print $3; }' | sed 's/[a-z0-9]*:[a-z0-9]*:[a-z0-9]*:[a-z0-9]*\/.*$//g'` ; if [ "$PREF" != "`cat /tmp/ipv6prefix`" ] ; then echo > /tmp/ipv6prefix && ifdown lan && ifup lan && ifdown wan && ifup wan ; /etc/init.d/firewall restart ; fi
