Hey everyone, Here's a very nice ISA firewall design doc: MSA Planning Guidance for Perimeter Firewall Service Design for the CDC Scenario (MSA Implementation Kit 2.0): http://www.microsoft.com/technet/itsolutions/msa/msa20ik/VMHTMLPages/VMH tm57.asp?frame=true HTH, Tom Thomas W Shinder www.isaserver.org/shinder <http://www.isaserver.org/shinder> ISA Server and Beyond: http://tinyurl.com/1jq1 Configuring ISA Server: http://tinyurl.com/1llp <http://tinyurl.com/1llp>