I'm pretty sure that you can't just copy and paste the configuration from the Pix into the ASA and expect it to work exactly the same. In addition you really should configure the ASA from scratch in order to get some console time on that device and become familiar with it's various options, etc.
Since, the CLI for 7.2 on the Pix and 8.0 on the ASA are pretty much the same, you should be able to copy/paste most of the configuration. But, I am sure that you need to make changes to the interface numbers, etc before you paste the configuration. With that said, I would do couple of things before deploying the ASA in production.
1. Copy the Pix configuration, make the necessary changes and apply it on the ASA in a Lab environment.
2. Paste only a portion of the configuration at a time, so its easy to track the commands that the ASA 8.0 does not like.
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...