if we're talking about the VPN Group configuration the default is zero (no timeout). the range is 1-65535 before ending the tunnel session. Keep-alive packets and ICMP (ping) traffic do not affect this timeout. This prevents users from using ping to keep their tunnels up.
If TFTP, timeout = 40 seconds default (found in the device, database,options,tftp,etc).
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...