I am using client version 5.0, PIX 506e and Microsoft IAS to vpn into a corporate network. Once connected some users have problems with their Outlook unable to connect to the Exchange server. Trying to figure out if I need to make a configuration change, or if a Microsoft issue. Thanks.
Re: Outlook problems connecting to Exchange server
The problem could be because of MTU sizing. Reduce the MTU sizing of the tunnel on both ends till the end users do not face any such connectivity problems. Packet reassembly and fragementation are some of the main causes for connectivity loss.
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...
[toc:faq]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 and UDP are I...