Related Topics
Configure Intrusion Prevention
To use Intrusion Prevention Service (IPS), you must have a feature key to enable the service.
For more information, see:
IPS Scan Modes and Actions
IPS has two scan modes
- Full Scan — Scan all packets for policies that have IPS enabled.
- Fast Scan — Scan fewer packets to improve performance. This option greatly improves the throughput for scanned traffic, but does not provide the comprehensive coverage of Full Scan mode. This is the recommended scan mode for Firebox T10, T15, T30, T35, T50, T55, and all XTM models.
IPS categorizes IPS signatures into five threat levels, based on severity. For each threat level you can select one of these actions:
- Allow — Allows the connection.
- Drop — Denies the request and drops the connection. No information is sent to the source of the content.
- Block — Denies the request, drops the connection, and adds the IP address of the content source to the Blocked Sites list. If the content that matches an IPS signature came from a client, the client IP address is added to the Blocked Sites list. If the content came from a server, the server IP address is added to the Blocked Sites list.
Enable and Configure IPS
If your Firebox has an active IPS subscription, the Web Setup Wizard and Quick Setup Wizard automatically enable IPS with recommended settings. For more information, see Setup Wizard Default Policies and Settings.
If IPS was not automatically enabled, you can enable it in Fireware Web UI or Policy Manager.
- In Fireware Web UI, select Subscription Services > IPS.
If IPS is licensed but not enabled, the IPS Setup Wizard starts automatically. - Click Next to begin.
- Select the Scan Mode.
- For each threat level, from the Action drop-down list, select the action.
- For each threat level, to send a log message for an IPS action, select the Log check box.
- For each threat level, to trigger an alarm for an IPS action, select the Alarm check box.
- Click Next.
- Select the firewall policies that use IPS, then click Next.
- Click Finish.
- Select Subscription Services > IPS.
- If IPS is not enabled, click Skip to configure the settings manually.
- Select the Enable Intrusion Prevention check box.
- Select the Scan Mode. You can select one of two modes:
- For each threat level, from the Action drop-down list, select the action.
- For each threat level, to send a log message for an IPS action, select the Log check box.
- For each threat level, to trigger an alarm for an IPS action, select the Alarm check box.
- Click Save.
- Select Subscription Services > Intrusion Prevention (IPS).
- Select the Enable Intrusion Prevention check box.
- Select the Scan Mode.
- For each threat level, from the Action drop-down list, select the action.
- For each threat level, to send a log message for an IPS action, select the Log check box.
- For each threat level, to trigger an alarm for an IPS action, select the Alarm check box.
- Click OK.
If you enable IPS for an HTTPS proxy policy, you must also enable Content Inspection in the HTTPS proxy action, in order for IPS to scan the HTTPS content. For more information, see HTTPS-Proxy: Content Inspection. IPS scanning of HTTPS content is not supported on XTM 21, 22, and 23 devices.
Configure Other IPS Settings
Make sure that you enable automatic updates of IPS signatures to keep your signatures current.
- To configure signature update settings, select Update Server. For more information, see Configure the IPS Update Server.
- You can disable or enable IPS for each policy in your configuration. For more information, see Enable or Disable IPS for a Policy.
- To add signatures to the exceptions list, select the Signatures. For more information, see Configure IPS Exceptions.
- To configure notification settings for IPS, click Notification. For more information, see Set Logging and Notification Preferences.