# Enabling DoS Attack Prevention Package (DAPP)

Use this procedure to enable DAPP.

## Procedure steps

1. From the navigation tree, double-click QoS.

2. From the QoS tree, double-click QoS Agent.

3. Select the Configuration tab.

4. Under the DoS Attack Prevention Package section, choose the DappEnable mode:

   - disable (Default) - Disables DAPP.

   - enableWithoutStatusTracking - Enables DAPP without enabling status tracking.

   - enableWithStatusTracking - Enables DAPP and enables status tracking.

5. Click Apply.