I have implementing one Cisco ASA 5520 at our head office with 3 site-to-site VPNs to 3x ASA 5505's.
The 5520 also is used for Remote Access VPN.
We have a server inside the network where users Telnet to. Everything is fine for internal users. But since the ASA implemntaiton, all users at the remote sites, or the remote access users, keep getting logged out of their telnet sessions after a 5-10 minute inactivity period.
I was hoping someone could tell me how to change this setting?
I have looked at the policy-map and create a new one (on both inside and outside interface) with an ACL to match all telnet traffic and gave the connection times a configuration of 1:00:00. The problem still happens however.
Can someone point me in the right direction to stop this from happening?
It actually isn't VPN traffic timing out or the SA lifetime. But telnet specifically. I've decided it is either the 'half closed' tcp connection or embryonic. I don't know enough about these to make a solid conclusion.
But the policy-maps i applied for TELNET traffic does seem to have worked when i see the time outs for the above connections to 0.
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...