Hi, I need some advice! We have a client that is asking us to provide a NAT IP Address for one of our devices but over a Site to Site VPN, basically their internal subnet clashes with ours and they are expecting to connect to our device over the VPN using an internet presented NAT IP.
We have an ASA5510 with 7.0(5), this devices terminates all VPN connections as well as providing the NAT for our internal LAN. I can't see how it is possible for me to provide what they want with only the ASA in place, I have studied the VPN configuration and every way that I turn makes no sense at all. I really want to be sure that I am right on this. I hope this makes sense, Many Thanks.
If I understand you correctly, you want the remote site to connect to an internal server with it's public ip address, but over the vpn tunnel. This is possible. Let's say you have something like this in your headend ASA, where 192.168.1.1 is the internal server they need access to...
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...