I am configuring an RV042 firewall. I am trying to whitelist as many ports as possible, but whenever I create a deny, it seems to block all traffic. I did change the priorities because firewalls read rules from top to bottom. There are to subnets because one needs a connection to the Internet. I am limited access between the two networks only to allow the necessary video ports to be open. Under those (lower priority) rules, I added a deny rule to block the rest of the ports between the subnets and later on, I created an explicit deny all. With any deny rule, all traffic between the networks are blocked.
Why are the deny rules blocking traffic when there are allow rules with a higher priority? And by higher, I mean above the deny rules with a lower number. Rules (priority #) 3-10 allow traffic between the two networks, but rule (priority) 11, the deny rule to block the rest of the traffic between the networks seems to block all. Should I 'assume' the implicit deny all is working and only whitelist the allowed ports?
Justin
