Number of clients accessing cache

[Alfredo Rezinovsky <alfredo@xxxxxxxxxxxxxxxx>]

With squidclient mgr:info I get a "Number of clients accessing cache:"

This number is always bigger than the different IP addresses in my 
access log.
I know I can have

Squid is using the user agent, the X-Forwarded-For or something else to 
distinguish one client with another?

--
Alfrenovsky