I have a windows server in the dmz that has outlook client installed that connects to my exchange server on the inside and I am allowing the following protocols between the two machines:
high port 1024 - 1500
everything works however maybe every third the time the client opens the client says is can not contact the server and to click retry, when I click retry it connects fine.
I have opened up the rule for IP but still the same problem. I have done a packet capture between the 2 hosts which I have attached and have broken down the capture to a succesfull connection and an interputed connection.
when they connect the server directly to the inside of the network and connect to exchange they never get prompted to retry.
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...