Yes - Web security appliance also acts as a proxy device and provides caching option. In todays deynamic web, most of the content is not-cache worthy as the data chnages so dynamic rate. However, if there is a specific pattern in you network where the end-users tend to access data which is relatively less dynamic, then it should help you in saving bandwidth.
Thanks Ken and Satish for quick reply.
My concern here is that if i am downloading same file in 7 laptops one by one....so after the 1st download all other laptop should take the file from cache right?...which i didn.t see here....
I have seen this in bluecoat.Is there any difference in caching here in ironport?.