Check this out: Microsoft ISA Server Message Boards: Multiple External Interfaces Failover: http://forums.isaserver.org/ultimatebb.cgi?ubb=get_topic;f=26;t=000012#0 00011 HTH, Tom Thomas W Shinder www.isaserver.org/shinder <http://www.isaserver.org/shinder> ISA 2004 Beta - Get it now! http://www.microsoft.com/isaserver/beta/default.asp <http://www.microsoft.com/isaserver/beta/default.asp> ISA Server and Beyond: http://tinyurl.com/1jq1 Configuring ISA Server: http://tinyurl.com/1llp <http://tinyurl.com/1llp>