Have you recently enabled log file ftp on your IDSM? It's likely that the log files being ftp'ed are older closed log files that have collected before log file ftp was enabled. Once these have all been ftp'ed, the ftp frequency should decrease because log files will only be ftp'ed as they're closed. Log files are closed on a time basis and a size basis. So, each time a log file gets full or too old, it's closed and is ftp'ed off.
If you're still seeing too frequent ftp'ing of log files, you may want to adjust what signatures your IDSM is alarming on.
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...