When an attacking host is shunned, is the host shunned based on the source and destination port? Or by the IP address. In other words if the host uses a different source port will that packet get through the shunning device? Based on the logs I have from the IDS (see below) it appears that the next packet got through and thus a second shun was executed. (If the shun is based on the IP address the second packet would to have been detected by the IDS - IDS is inside the shunning device)
The shuns are based upon the ip address. Managed controls what ip's are shunned. The message you saw in the log was from packetd. It still detects the alarms. However, the second alarm would have extended the time of the shun (reset the start time to that of the second alarm).
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...