--- dhclient-script.orig	2008-11-09 20:03:02.000000000 +0100
+++ dhclient-script	2008-11-09 20:03:20.000000000 +0100
@@ -13,6 +13,11 @@
 # The alias handling in here probably still sucks. -mdz
 
 make_resolv_conf() {
+    # Do not renew resolv.conf when vpntunnel is open
+    [ "$reason" = "RENEW" ] &&\
+      [ -n "( ifconfig -s | awk ' ( $1 ~ /^(tun|cipsec)/ ) {print $1}' )"] &&\
+      return
+    
     if [ -n "$new_domain_name" -o -n "$new_domain_name_servers" ]; then
         # Find out whether we are going to mount / rw
         exec 9>&0 </etc/fstab