1. Important Notes

After enabling the firewall, all inbound traffic will be blocked by default unless explicitly allowed via "Inbound Rules".

(Example: Remote desktop access requires adding an inbound rule for TCP port 3389)

Traffic originating from/to the same IP is exempt from firewall restrictions (e.g., localhost-to-localhost communication).

2. Execution Order

Rules are processed in descending priority order (1 = highest, 99 = lowest).

For rules with identical priority, the most recently added rule takes precedence.

3. Filling Instructions

Protocol:

Supports TCP and UDP protocols only.

Action Limit:

Configure whether to denyor allow communication.

Local Port:

Entry port(s) of the local machine.

For multiple ports, separate with English commas. Port ranges can be specified using hyphens (-).

Example: 80,443,55000-56000

Source IP:

Remote IP(s) accessing the local machine.

Supports subnet masks and IP ranges (separated by hyphens -).

Examples:

192.168.2.110

192.168.2.110/16

192.168.2.110-192.168.2.250

Also supports adding geographic regions (continent/country/province/city), such as China.

Priority:

Priority range: 1–99 (1 = highest priority, 99 = lowest priority).