I've never implemented a "mirapoint razorgate" solution, but you may ping your IronPort sales representative or reseller and see if they have any information that compares other anti-spam solutions against the IronPort's AsyncoS appliances. Also, a great place would be to check the forums at "mirapoint razorgate".
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...