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Anti-DDoS supports blocking inbound traffic based on its protocol type. You can enable "Block ICMP protocol/Block TCP protocol/Block UDP protocol/Block other protocols" to block their access requests directly. Note that UDP is a connectionless protocol that dose not provide a three-way handshake process like TCP and thus has security vulnerabilities. We recommend blocking UDP if it is not used for your business.

Prerequisites

You have successfully purchased an Anti-DDoS Pro instance and set the protected target.

Directions

1. Log in to the new Anti-DDoS console and select Anti-DDoS Pro (New) > Configurations on the left sidebar. Open the DDoS Protection tab.

2. Select an Anti-DDoS Pro instance ID in the list on the left, such as "bgp-00xxxxxx".
   

3. Click Set in the Block by Location section.
   

4. Click Create to create a protocol blocking rule.
   

5. In the pop-up window, click the button on the right of a protocol, and click Confirm.
   

6. After the rule is created, it is added to the list. You can click Configuration on the right of the rule to modify it.