Not possible - you can only enter IP addresses or names defined on the firewall itself. So if you need to reach www.randomsite.com, you have to look up an IP address and put it in an access list. If www.randomsite.com changes it's IP, theres no real way to pick that change up, unfortunately.
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...