I am new to the ASA product line. I have an ASA5540 running ASA ver 8.0(3) with ADSM ver 6.0(3). When I look at the device dashboard I see the following message pop into the syslog every couple seconds:
[ Scanning] drop rate-1 exceeded. Current burst rate is 10 per second, max configured rate is 10; Current average rate is 24 per second, max configured rate is 5; Cumulative total count is 14838
At this time I only have my internal LAN interface active. Is something on the inside LAN trying to scan the ASA? Is there a way to slow down or prevent these messages? Are these normal and bening?
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...