We have ordered PIX515-R-BUN however when I run show version command on our PIX it shows that its a PIX515E. I will appreciate someone can advice whats the difference between both of the mentioned models of PIX.
Second question; is their any Cisco webpage where I can give product serial # and it will display the complete details of the product.
The 515E is the newer version of the 515. The PIX515-R-BUN you purchased just means a 515 with a restricted licence. 515's are no longer being shipped, so you now get a 515E which is faster, stronger, better than the 515.
As for the web page, I don't believe there's one, but the "sho ver" output you have above gives you what hardware you have (515E with two interfaces, 32Mb RAM and 16Mb Flash), what software features you're licenced for. Not much more to tell.
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...