TCP reset feature on the IDS by default will send out a TCP reset through the sniffing interface.
However, it sounds like you are talking about shun connection rather than tcp reset. A shun will effectively block the connection by applying a filter (rather than a packet to terminate the connection), it does this by applying this filter on your router or PIX.
On the PIX this is achieved through a filter function called a shun command. This is actually available on the version of PIX you are running (6.3.x)
To get your reset to work, your P2P connection would have to (1)be seen by the sensing interface, (2)trigger an alarm, and (3)the matching signature would need its TCP Reset Action enabled. No IP addresses would be blocked.
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...