Hi Shawn, Ha! Click the link to the actual RFC and check the date. ;-) What sad is that we get so many requests to allow exactly this type of functionality for the ISA firewall. :( Tom -----Original Message----- From: Quillman Shawn (RBNA/CSA1) * [mailto:Shawn.Quillman@xxxxxxxxxxxx] Sent: Friday, July 23, 2004 2:07 PM To: [ISAserver.org Discussion List] Subject: [isalist] RE: The Internet Telephony - IETF Standards - Firewall/NAT Traversal http://www.ISAserver.org This is a multi-part message in MIME format.