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Step 1. Set up layer 4 port protection

Last Updated: Sep 25, 2017
  1. Log on to the Alibaba Cloud console.

  2. Select Anti-DDoS Pro, and click Non-Web Service.

  3. Select the Anti-DDoS Pro instance and IP.

    Select Anti-DDoS Pro instance

  4. Click Add one rule.

  5. Select a protocol type under Forwarding protocol/port, and input the forwarding port.

    Configure the rule

  6. Input Original site port and Original site IP. Use commas to separate multiple origin IP addresses.


    • UDP port 53 and TCP port 80 are not supported.
    • Up to 50 layer-4 forwarding rules can be added to the list.
    • Up to 20 origin IP addresses can be added to a layer-4 forwarding rule.
  7. Click OK. A new rule entry will be added to the list.

    The rule entry added

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