Hello I am new to this list I have some querries.Earliear I had checkpoint with me as Firewall .Recently I installed ISA Server .Some of the fact which I still not clear are as under. What is the difference between clent set and destination set? For me both sounds same . Also in checkpoint I use to NAT a ip addresses by giving the public Ip address of it into a node ,whereas I could not find anything of that sort in ISA .Also what is SecureNAT .Has it antthing to do with NAT? I request you to assist me in knowing these . Regards C.Piyush --------------------------------- Do you Yahoo!? Yahoo! Shopping - Send Flowers for Valentine's Day