--- a/bin/vznetcfg.in	
+++ a/bin/vznetcfg.in	
@@ -55,4 +55,10 @@ case "${CMD}$2" in
 		exit 1
 		;;
 esac
+
+# Call the post external script if defined
+if [ -n "${POST_EXTERNAL_SCRIPT}" -a -x "${POST_EXTERNAL_SCRIPT}" ]; then
+	exec "${POST_EXTERNAL_SCRIPT}" $@
+	:
+fi
 exit 0
--- a/paths.am	
+++ a/paths.am	
@@ -43,3 +43,4 @@ namesdir    = $(pkgconfdir)/names
 
 vzdatadir   = $(pkgdatadir)/scripts
 vzcrondir   = $(pkgdatadir)/scripts
+vznetdir    = $(pkgdatadir)/scripts
--- a/pathsubst.am	
+++ a/pathsubst.am	
@@ -24,6 +24,7 @@ pathsubst_RULES = \
 	s!@'PKGDATADIR'@!$(pkgdatadir)!g; \
 	s!@'PKGLIBDIR'@!$(pkglibdir)!g; \
 	s!@'CRONDDIR'@!$(cronddir)!g; \
+	s!@'ETCNETDIR'@!$(etcnetdir)!g; \
 	s!@'DST_CRONDDIR'@!$(dst_cronddir)!g;
 
 
--- a/scripts/Makefile.am	
+++ a/scripts/Makefile.am	
@@ -17,6 +17,9 @@ 
 
 include $(top_srcdir)/pathsubst.am
 
+vznet_SCRIPTS = \
+	veth-update_bri
+
 vzdata_SCRIPTS = \
 	vps-create \
 	vps-functions \
@@ -29,9 +32,11 @@ vzcron_SCRIPTS = \
 	vpsreboot
 
 EXTRA_DIST = \
+	$(vznet_SCRIPTS:%=%.in) \
 	$(vzdata_SCRIPTS:%=%.in) \
 	$(vzcron_SCRIPTS:%=%.in)
 
 CLEANFILES = \
+	$(vznet_SCRIPTS) \
 	$(vzdata_SCRIPTS) \
 	$(vzcron_SCRIPTS)
--- a/scripts/veth-update_bri.in	
+++ a/scripts/veth-update_bri.in	
@@ -0,0 +1,7 @@ 
+#! /bin/sh
+
+if [ -x /sbin/brctl -a -x @ETCNETDIR@/scripts/setup-bri ]; then
+	/sbin/brctl show | \
+		sed '1d;/^[[:space:]]/d;s/^\([^[:space:]]\+\)[[:space:]].*$/\1/' | \
+		xargs -i @ETCNETDIR@/scripts/setup-bri {}
+fi