There is no technical problem in setting up such a connection. However, configuration errors are quite common and the use of the ADSL connection for a VPN is against the service policy agreement of many consumer grade DSL providers, some of whom install filters to prevent VPNs from being established unless you "upgrade" to a business grade DSL connection (that is, you agree to pay more for the same service without the packet filters).
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...