Since the current threads have brought up the issues with NAT ... A couple of years ago, Bob Moskowitz presented a paper at IETF outlining the issues with multiple layers of NAT. I've lost the URL. Anyone know what it is? Dave ----------- David Hares Director of Network Engineering NetworkTwo Communications Phone: 734.827.3620 650 KMS Place FAX: 734.827.3690 Ann Arbor, MI 48108 Email: dhares@networktwo.net