Configuration of SIP flood attack defense for the USG2000&5000 series on the web UI

You can configure SIP flood attack defense for the USG2000&5000 series on the web UI.
Configure SIP flood attack defense based on IP addresses.
1. Choose Firewall > Security Protection > Attack Defense.
2. In the attack defense configuration list, choose Attack Defense Type > Application Layer > SIP Flood.
3. On the Configure SIP Flood Attack Defense page, select Enable corresponding to Defense.
4. Set a port range.
5. Click Add. Enter an IP address in the IP Address text box.
6. Click Apply.

Configure SIP flood attack defense based on security zones.
1. Choose Firewall > Security Protection > Attack Defense.
2. In the attack defense configuration list, choose Attack Defense Type > Application Layer > SIP Flood.
3. On the Configure SIP Flood Attack Defense page, select Enable corresponding to Defense.
4. Set a port range.
5. Click the (Optional) Based on Security Zones tab.
6. Click Add. Select a security zone from the Security Zone drop-down list.
7. Click Apply.

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