By default, ISA Server will block any traffic so you must create an access rule to allow certain traffic. See Getting started with Microsoft ISA Server 2006, Part 8: Create Web Access Rule for an example how to create an access rule.

I’ve only used ISA2000 that came with SBS and didn’t have any problem.

I’ve just installed sbs2003 and the clients can connect to the internet and internal network fine, but when I’ve added ISA2006 none of the clients can access the server or internet, uninstall isa2006 and they’re fine.

I assume I’m missing a firewall policy to allow access to the internal network? I’d have thought it would have been already open, but I’m new to this.

Any advice? SBS2003 with ISA2006 installed 2 nic’s

Regards

Mark