Blocking Traffic to a Specified Port

Enabling Port Blocking

1. Log in to the AAD console.
2. In the navigation pane on the left, choose Cloud Native Anti-DDoS Advanced > Protection Policies. The Protection Policies page is displayed.
3. Click Create Protection Policy.
4. In the displayed dialog box, set the policy name, select an instance, and click OK.
   Figure 1 Creating a policy
   

5. In the row containing the target policy, click Set Protection Policy in the Operation column.
6. In the Port Blocking configuration area, click Set.
   Figure 2 Port blocking configuration box
   

7. In the Port Blocking dialog box, click Create Port ACL Rule.
8. In the dialog box that is displayed, set the port ACL.
   Figure 3 Creating a port ACL rule
   

   Table 1 Port ACL parameters

   Parameter	Description
   Rule Name	Enter a rule name.
   Protocol	Protocol of the port to be blocked TCP and UDP are supported.
   Port Type	Only Destination Port is supported.
   Start Port-End Port	Set the range of ports to be blocked.
   Action	Protection action after the port is blocked Discard: Discard traffic destined for the port.

9. Click OK.

Follow-up Procedure

• Locate the row that contains the target port and click Delete in the Operation column to delete the port blocking rule.
• Locate the row that contains the target port and click Edit in the Operation column to edit the port blocking rule.