$NetBSD: patch-ak,v 1.2 2011/04/15 13:35:05 bouyer Exp $

--- hotplug/NetBSD/vif-ip.orig	2011-04-01 16:04:24.000000000 +0200
+++ hotplug/NetBSD/vif-ip	2011-04-01 16:04:54.000000000 +0200
@@ -23,7 +23,10 @@
 	xip=$(xenstore-read "$xpath/ip")
 	xfid=$(xenstore-read "$xpath/frontend-id")
 	xhandle=$(xenstore-read "$xpath/handle")
-	iface=$(xenstore-read "$xpath/vifname")
+ 	iface=$(xenstore-read "$xpath/vifname") || true
+	if [ x${iface} = "x" ] ; then
+		iface=xvif$xfid.$xhandle
+	fi
 	echo ifconfig $iface $xip up
 	ifconfig $iface $xip up
 	xenstore-write $xpath/hotplug-status connected