I created these two rules. They must be put with this order!!! When one rule is valid, the following rules are not executed. This is the logic.
The first one “frees” a certain group of IP in my green.
The second blocks all traffic from GREEN to RED for all other IP. Automatically, all traffic that “goes through the proxy,” is not affected by this rule.
Big problem: In this way, only browsing is possible. All services that use other ports (POP3, WhatsApp, SMTP, FTP, … will not work, unless other rules are set to free the relevant ports).
Can this major problem be remedied?