diff --git a/sbin/dhclient-script b/sbin/dhclient-script
index d88053c7fd..6258f81fe5 100755
--- a/sbin/dhclient-script
+++ b/sbin/dhclient-script
@@ -83,6 +83,7 @@ add_new_address() {
 		$LOGGER "New Routers ($interface): $new_routers"
 
         echo $new_routers > /tmp/${interface}_router
+		cp /var/db/${interface}_ip /tmp/rc.newwanip_oldip 2>/dev/null
 		echo $new_ip_address > /var/db/${interface}_ip
 }