Hi Everybody, I'm using an ISA server installed in 'cache-only mode' and encounter the following problem: When I use the destination 'All external destinations' in a 'Site and Content rule' with access control enabled, the URLs that contain external IP addresses aren't considered as external by the ISA server. The rule defined this way doesn't works with these IP address. For example, I have a rule that allow authenticated user of my domain to go to external sites. I use a workstation in the domain and I'm log on with a user that has access to external sites. If I use the URL 'http://www.microsoft.com/' form my IE, it works (transparent integrated authentication). If I use the URL 'http://<IP address of the microsoft site>/' I get an authentication prompt and it doesn't work. Anybody already encounter this ? Best regards, Olivier