diff -u --recursive --new-file xen-4.1.0-vanilla/tools/hotplug/Linux/vif-bridge xen-4.1.0/tools/hotplug/Linux/vif-bridge
--- xen-4.1.0-vanilla/tools/hotplug/Linux/vif-bridge	2011-05-06 10:39:15.848610384 -0500
+++ xen-4.1.0/tools/hotplug/Linux/vif-bridge	2011-05-06 10:55:55.347672818 -0500
@@ -105,6 +105,10 @@
     handle_iptable
 fi
 
+for f in /etc/xen/scripts/vif-post.d/*; do
+    [ -x $f ] && $f
+done
+
 log debug "Successful vif-bridge $command for $dev, bridge $bridge."
 if [ "$type_if" = vif -a "$command" = "online" ]
 then
diff -u --recursive --new-file xen-4.1.0-vanilla/tools/hotplug/Linux/vif-nat xen-4.1.0/tools/hotplug/Linux/vif-nat
--- xen-4.1.0-vanilla/tools/hotplug/Linux/vif-nat	2011-05-06 10:39:15.847610424 -0500
+++ xen-4.1.0/tools/hotplug/Linux/vif-nat	2011-05-06 10:56:10.629062183 -0500
@@ -185,6 +185,10 @@
 
 handle_iptable
 
+for f in /etc/xen/scripts/vif-post.d/*; do
+    [ -x $f ] && $f
+done
+
 log debug "Successful vif-nat $command for ${dev}."
 if [ "$command" = "online" ]
 then
diff -u --recursive --new-file xen-4.1.0-vanilla/tools/hotplug/Linux/vif-post.d/00-vif-local xen-4.1.0/tools/hotplug/Linux/vif-post.d/00-vif-local
--- xen-4.1.0-vanilla/tools/hotplug/Linux/vif-post.d/00-vif-local	1969-12-31 18:00:00.000000000 -0600
+++ xen-4.1.0/tools/hotplug/Linux/vif-post.d/00-vif-local	2011-05-06 11:54:04.258077228 -0500
@@ -0,0 +1,20 @@
+#============================================================================
+# ${XEN_SCRIPT_DIR}/vif-post.d/00-vif-local
+#
+# Script for performing local configuration of a vif.
+# This script will be sourced by, e.g., vif-bridge after the hotplugging
+# system calls vif-bridge. The script is here and not simply executed as
+# a udev rule because this allows simple access to several environment
+# variables set by the calling vif-* script.
+#
+# Usage:
+# vif-local (add|remove|online|offline)
+#
+# Environment vars:
+# dev         vif interface name (required).
+# main_ip     IP address of Dom0
+# ip          list of IP networks for the vif, space-separated
+# XENBUS_PATH path to this device's details in the XenStore (required).
+#============================================================================
+
+# Place local modifications here.
diff -u --recursive --new-file xen-4.1.0-vanilla/tools/hotplug/Linux/vif-route xen-4.1.0/tools/hotplug/Linux/vif-route
--- xen-4.1.0-vanilla/tools/hotplug/Linux/vif-route	2011-05-06 10:39:15.845610504 -0500
+++ xen-4.1.0/tools/hotplug/Linux/vif-route	2011-05-06 12:00:06.029751382 -0500
@@ -49,6 +49,10 @@
 
 handle_iptable
 
+for f in /etc/xen/scripts/vif-post.d/*; do
+    [ -x $f ] && . $f
+done
+
 log debug "Successful vif-route ${command} for ${dev}."
 if [ "${command}" = "online" ]
 then