We are using ASA 5505 version 8.2(1) with base license,Inside Host unlimited license and 3 Vlans. We have bought new ASA with Security Plus License as a backup.My question is can I restore Back up from old ASA with version 8.2(1) to new ASA with version later ? or I have to configure new ASA from the scratch manually?
Just to let you know there are NAT configuration related changes from version 8.3 on. If the new ASA shipped with version 8.2.x abd below, you are good to go. If it shipped with 8.3 and above, you are still use backup config (via tftp ot anyother method except copy/paste) and ASA will auto covert the configuration when you reboot. But, it is recomended to get familiar with new NAT syntax before you upload to ASA with IOS version 8.3a dn later.
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...