Transparent Squid interface

[tobiascapin]

I add a transparent Squid proxy to my pfsense. I do not where (I cannot find it), but all outbound traffic to TCP80 is redirected to squid port 3128.

Now I would like to add some firewall rules and limiter queues to web traffic, but how to set it?
What is the source of this traffic? Pfsense/Squid (127.0.0.1) or the original client ip?

I'm posting this question because I tried to add a firewall rule to "block all TCP80 from LAN (clients) network" and my clients could connects to web pages using the transparent proxy.

[KOM]

I think I remember there being a problem with Squid and limiters but I might be wrong.