We have a remote office (ASA5505) connected to main office (3025). We can browse networks and access services on either side OK, but our exchange server host name also has the same public DNS host name so mail clients at the remote site try to connect to exchange at the public address. We are trying to get the clients to connect to exchange through the tunnel at the private address. The mail clients at the main site are configured the same as the remote site and they connect to the exchange server OK on the local lan.
I assume that your local lan has an internal DNS server which resolves the name to the internal IP address correct? is this DNS the same on the remote site? This is a problem on how the clients are given the name of the exchange by the dns server.
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...