There is agroup of network conected to a Cisco 1811 ISR through site to site VPN. Everything goes fine but after 5 or 6 hours of traffic , the users can not reach any more the servers and even when the routers are restarded , the problem remain the same. Only when the server is restarted , the users can log in it. This happen only from users behind the routers. The other users that are in a bridge network , dont have any problem. In routers are configured DLSW for SNA routing.
The tunnel is between routers.The routers are all 1811 IOS adventerprisek9-mz.12.4-T. The Vpn tunnel is Up and in function.During the freeze condition every workstatiin can ping and via DOS ( telnet ) can reach in any port the servers.Meanwhile in bridge ( local Lan ) everything run fine , No freezing and the servers replies correctly.The server accept a lot of connections because the workstation behind the routers were all in Bridge.
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...