In previous releases of the gateway, there were only blocked IP addresses. What are the allowed addresses in the management gateway firewall configuration?
The allowed addresses are exceptions to the blocked addresses. For example, if you want to block a range, but allow access to one IP address in that range, you would add the range under blocked addresses and the single IP address under allowed addresses.
This is how the logic works:
Is the traffic coming in over an allowed port? (These are the "enabled" trusted services). If so, go to the next step. Otherwise, block the traffic.
Is the machine in the the allowed addresses? If so, allow the traffic through. If not, go to the next step.
Is the machine in the blocked list? If so, block the traffic. Otherwise, allow the traffic through.