Group, I have some a Million dollar question for everyone that can help me. We have some clients that would like to use a ISA behind a PIx. So here are some questions. Does ISA and Pix work together well? If we want to use Pix, can we use Pix 501? Can we use ISA with a dual Nic for a dual firewall setup. IE: Internet - ->(Public IP) - Pix 501(192.168.200.254)- -> (192.168.200.1)- ->ISA- ->(10.1.1.X) - > Internal Network. So with that in mind, has anyone seen this type of configuration used. If so, what were the issues to look for. I would appreciate any help in this matter. Scott Scott Van Singel MCSE, MCP Network Engineer / Consultant Keller Schroeder & Associates Phone: (812) 474-6825 Ext. 378 Email: Svansingel@xxxxxxxxxx