I am running a couple of VPN connections from 806 adsl router into a 7204VXR headend router.... We are having performance problems when downloading gif files from intranet sites... all aother traffic seems ok....
Is there any know issues with downloading gif file across ipsec tunnels ?
There's nothing specific to .gif files that I'm aware of but large files with the don't-frag bit set could be a problem due to the IPSEC header size. You might try to throttle down your MTU on a test PC and see what happens. Cisco's VPN client includes a "Set MTU" application.
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...