# Classic Network Firewall policies in Amazon Network Firewall
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A Classic Network Firewall policy filters traffic using a stateless engine and a stateful engine. The following sections describe the Classic policy settings and how to create, update, and delete a Classic policy. For new firewalls, **Next Generation** policies are recommended; see [Next Generation policies](firewall-policies-v2.md).

**Topics**
+ [Firewall policy settings in Amazon Network Firewall](firewall-policy-settings.md)
+ [Stream exception policy options in your Amazon Network Firewall firewall policy](stream-exception-policy.md)
+ [Managing your firewall policy in Amazon Network Firewall](firewall-policy-managing.md)