You can have the broadband site connect to the PIX using EasyVPN, however, note that you may have some routing/connectivity issue due to the PIX ASA engine. I would suggest moving to a IOS based VPN instead, unless you have a pure hub-spoke VPN infrastructure and you don't mind not having spoke to spoke connectivity.
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...