"Create a pool of global addresses that translated addresses use when they exit the firewall from the protected networks to the unprotected networks. The global command statement is associated with a nat command statement by the NAT ID, which in this example is 1. Because there are limited IP addresses in the pool, a PAT (Port Address Translation) global is added to handle overflow."
End of example
So, in my case, can I simply use the second global line to attain my objective?
Also, do I need to configure particular access-list entries in this case or will the PIX take care of everything automatically?
you literally use the keyword 'interface' in the global command. it will use the outside interface IP, no matter what it is. you could also just use the outside IP there though. both accomplish NAT overloading / PAT.
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...