If your box has internet connectivity (which it needs for antispam updates anway), you can use the "retrieve license keys" button in the web interface to download the keys. If that doesn't work, check if your network and DNS settings are correct.
If you do not have an internet connection from the appliance, you can enter/activate the keys via the GUI (System Administration\Feature Keys menu) or using the featurekey CLI command. Contact IronPort Customer Support for your keys if you have not received them with the appliance. You need to provide the serial numbers and your customer ID for Support.
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...