Hello All, This is the first time I m writing to this message list. hope u guys will help me too..... I am using Raptor Firewall 6.5 for NT in my envoirment and I want to introduce ISA server on my network. I have two options:- Option No 1 :- Placing ISA server in Caching mode between firewall and internet. So that each HTTP request from internal network will first go to firewall and firewall will forward the request to ISA Server. Option No:-2 Placing ISA server in Caching mode between firewall and internal network. so that first the request will come to ISA then it'll be forwarded to firewall and out to internet. so I have a doubt that what difference it makes if I put ISA server before or after the firewall. If somebody is using this scenario with any other firewall. which option they r using and why...????? I hope somebody will answer to my query. I tried searching on Microsoft site also but........!!!!!!!!!!!!!! Thanx in Advance, Vijay