Hi @GregZaaa 

Thanks for posting in our business forum.

You can try out this FAQ. ACL is needed to stop inter-VLAN traffic. VLAN interface, by default, allows traffic between the interfaces.

Hi @GregZaaa 

Thanks for posting in our business forum.

GregZaaa wrote

Hi, well the whole idea is to stop traffic between segments. I'd say that a simple "deny src dest port" would do the trick, but it really doesn't to a thing.....

Currently, GW ACL does not support IP-Port in controller mode.

Hi @GregZaaa 

Thanks for posting in our business forum.

GregZaaa wrote

I am running stand-alone. And what does mean really? What does it support?

1. I would recommend you take a look at the User Guide. Play around with it. ACL is very straightforward. Protocol, port, SRC, and DST.

There is no specific guide on how you configure it but ideas on how to achieve different goals. Take a second and browse through the KB on the forum. 

2. If you need a step-by-step guide or walkthrough, please call the support number. A rep can walk you through it.

I don't intend to answer the low-effort questions. which were not explicitly described initially and are not the goal of the forum to discuss and improve the skills.

Standalone have the ability to choose the "service" which is the difference in controller mode. Which is the direction I pointed out for you.