After reviewing the couple of sections in WSA like reporting and system admisitration > log subscription, I guess there is no direct/easy way to track logged in users. It's little cumbersome but we can only check them in the access-logs.
There is no real way to track the number of users online on the WSA. We can definitely get requests per second though. However, some users use the internet more heavily than other users so it is hard to gauge this.
In the CLI: Use the command 'rate'. This will let you know how many requests per second are being processed by the WSA real time.
In the SHD logs: This will let you know how many connections there are at 1 minute intervals.
In the Track Stats logs: This log is a little difficult to decipher. You can get a history of requests per second and other details. It's mainly used for advanced debugging/troubleshooting.
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...