I am using Fortigate at Edge Firewall and created many access policies and traffic shaping policies, implented IPS signature. Block or allow access to certain workstations on certatin links.
Now I want to implent ISA Server as Backend Firewall to provide more security and the main objective is to get monitoring reports of users bandwidth usage.
My question is that if i implement ISA in this then how about the policies that i have on Edge Firewall, because after implementing ISA Sever the source IP address will be the External Interface IP address of ISA Server. Right?
Waiting for your replies.