diff --git a/hyper-v.changes b/hyper-v.changes
index 2e66669..1b4665e 100644
--- a/hyper-v.changes
+++ b/hyper-v.changes
@@ -1,5 +1,5 @@
 -------------------------------------------------------------------
-Fri Nov 23 15:58:28 CET 2012 - ohering@suse.de
+Fri Nov 23 20:49:31 CET 2012 - ohering@suse.de
 
 - update hv_set_ifconfig further to work with our ifcfg [bnc#790469]
 
diff --git a/hyper-v.tools.hv.hv_set_ifconfig.sh b/hyper-v.tools.hv.hv_set_ifconfig.sh
index 46ef9c2..15123d1 100644
--- a/hyper-v.tools.hv.hv_set_ifconfig.sh
+++ b/hyper-v.tools.hv.hv_set_ifconfig.sh
@@ -122,23 +122,17 @@ fi
 	for var in ${!IPV6ADDR*}
 	do
 		index=${var#IPV6ADDR}
-		pfx=
 		# find corresponding IPV6NETMASK variable
-		eval nm=\$IPV6NETMASK${index}
+		eval pfx=\$IPV6NETMASK${index}
 		# if specified, calculate prefix
-		if test -n "${nm}"
+		if test -z "${pfx}"
 		then
-			pfx=`mask2pfxlen "${nm}" 2>/dev/null`
+			pfx=128
 		fi
 		# construct actual value
 		eval val=\$IPV6ADDR${index}
-		# append prefix to value
-		if test -n "${pfx}"
-		then
-			val="${val}/${pfx}"
-		fi
 		# write config variable
-		echo "IPV6ADDR${index}='${val}'"
+		echo "IPADDR${index}='${val}/${pfx}'"
 	done
 
 ) >> "${t_ifcfg}"
@@ -177,9 +171,10 @@ done
 echo "$0: working on network interface ifcfg-${IF_NAME}"
 cp -fb ${t_ifcfg} "/etc/sysconfig/network/ifcfg-${IF_NAME}"
 cp -fb ${t_ifroute} "/etc/sysconfig/network/ifroute-${IF_NAME}"
-if test -n "${_DNS_}" && test -w /etc/sysconfig/network/config
+if test -w /etc/sysconfig/network/config
 then
 	sed -i "s@^NETCONFIG_DNS_STATIC_SERVERS=.*@NETCONFIG_DNS_STATIC_SERVERS='$_DNS_'@"  /etc/sysconfig/network/config
+	netconfig update -m dns
 fi
 ifdown "${IF_NAME}" -o hotplug
 ifup "${IF_NAME}" -o hotplug