diff --git a/patches/systemvm/debian/config/root/redundant_router/enable_pubip.sh.templ b/patches/systemvm/debian/config/root/redundant_router/enable_pubip.sh.templ
index 8be4265efb9..32604954990 100644
--- a/patches/systemvm/debian/config/root/redundant_router/enable_pubip.sh.templ
+++ b/patches/systemvm/debian/config/root/redundant_router/enable_pubip.sh.templ
@@ -5,8 +5,8 @@ set -e
 ip link|grep BROADCAST|grep -v eth0|grep -v eth1|cut -d ":" -f 2 > /tmp/iflist
 while read i
 do
-    ifconfig $i down
-    ifconfig $i up
+    ifdown $i
+    ifup $i
 done < /tmp/iflist
 ip route add default via [GATEWAY] dev eth2 && \
 service dnsmasq restart