You should only manage each sensor from one CSPM server, although you can set the sensor up to send alerts to more than one CSPM server if you like. There's an "Additional Destinations" tab under the Advanced tab in CSPM, you can configure the sensor to send alerts to another CSPM server here. Note that when doing this you still need to add the sensor into the Topology on the 2nd CSPM server so that it will accept the alerts.
CSPM 2.3.3i is sold as part of the VMS Bundle. VMS if I remember correctly is sold with either a 10 device license (limits you to just 10 sensors) or an Unrestricted license (The typical user purchase).
You will likely want the Unrestricted license. With the unrestricted license it is the number of alerts that usually determines the number of sensors.
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...