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    Configure Log Forwarding
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    Configure Log Forwarding

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    Configure Log Forwarding

    In an environment where you use multiple firewalls to control and analyze network traffic, any single firewall can display logs and reports only for the traffic it monitors. Because logging in to multiple firewalls can make monitoring a cumbersome task, you can more efficiently achieve global visibility into network activity by forwarding the logs from all firewalls to Panorama or external services. If you Use External Services for Monitoring, the firewall automatically converts the logs to the necessary format: syslog messages, SNMP traps, email notifications, or as an HTTP payload to send the log details to an HTTP(S) server. In cases where some teams in your organization can achieve greater efficiency by monitoring only the logs that are relevant to their operations, you can create forwarding filters based on any log attributes (such as threat type or source user). For example, a security operations analyst who investigates malware attacks might be interested only in Threat logs with the type attribute set to wildfire-virus.
    By default, logs are forwarded over the management interface unless you configure a dedicated service route to forward logs. Forwarded logs have a maximum log record size of 4,096 bytes. A forwarded log with a log record size larger than the maximum is truncated at 4,096 bytes while logs that do not exceed the maximum log record size are not.
    Log forwarding is supported only for supported log fields. Forwarding logs that contain unsupported log fields or pseudo-fields causes the firewall to crash.
    You can forward logs from the firewalls directly to external services or from the firewalls to Panorama and then configure Panorama to forward logs to the servers. Refer to Log Forwarding Options for the factors to consider when deciding where to forward logs.
    You can use Secure Copy (SCP) commands from the CLI to export the entire log database to an SCP server and import it to another firewall. Because the log database is too large for an export or import to be practical on the PA-7000 Series firewall, it does not support these options. You can also use the web interface on all platforms to View and Manage Reports, but only on a per log type basis, not for the entire log database.
    1. Configure a server profile for each external service that will receive log information.
      You can use separate profiles to send different sets of logs, filtered by log attributes, to a different server. To increase availability, define multiple servers in a single profile.
      Configure one or more of the following server profiles:
      • (Required for SMTP over TLS) If you have not already done so, create a certificate profile for the email server.
      • 2 To enable the SNMP manager (trap server) to interpret firewall traps, you must load the Palo Alto Networks Supported MIBs into the SNMP manager and, if necessary, compile them. For details, refer to your SNMP management software documentation.
      • If the syslog server requires client authentication, you must also 5
      • Configure an HTTP server profile (see Forward Logs to an HTTP/S Destination).
        Log forwarding to an HTTP server is designed for log forwarding at low frequencies and is not recommend for deployments with a high volume of log forwarding. You may experience log loss when forwarding to an HTTP server if your deployment generate a high volume of logs that need to be forwarded.
    2. Create a Log Forwarding profile.
      The profile defines the destinations for Traffic, Threat, WildFire Submission, URL Filtering, Data Filtering, Tunnel and Authentication logs.
      1. Select ObjectsLog Forwarding and Add a profile.
      2. Enter a Name to identify the profile.
        If you want the firewall to automatically assign the profile to new security rules and zones, enter default. If you don’t want a default profile, or you want to override an existing default profile, enter a Name that will help you identify the profile when assigning it to security rules and zones.
        If no log forwarding profile named default exists, the profile selection is set to None by default in new security rules (Log Forwarding field) and new security zones (Log Setting field), although you can change the selection.
      3. Add one or more match list profiles.
        The profiles specify log query filters, forwarding destinations, and automatic actions such as tagging. For each match list profile:
        1. Enter a Name to identify the profile.
        2. Select the Log Type.
        3. In the Filter drop-down, select Filter Builder. Specify the following and then Add each query:
          • Connector logic (and/or)
          • Log Attribute
          • Operator to define inclusion or exclusion logic
          • Attribute Value for the query to match
        4. Select Panorama if you want to forward logs to Log Collectors or the Panorama management server.
        5. For each type of external service that you use for monitoring (SNMP, Email, Syslog, and HTTP), Add one or more server profiles.
      4. (Optional, GlobalProtect Only) If you are using a log forwarding profile with a security policy to automatically quarantine a device using GlobalProtect, select Quarantine in the Built-in Actions area.
      5. Click OK to save the Log Forwarding profile.
    3. Assign the Log Forwarding profile to policy rules and network zones.
      Security, Authentication, and DoS Protection rules support log forwarding. In this example, you assign the profile to a Security rule.
      Perform the following steps for each rule that you want to trigger log forwarding:
      1. Select PoliciesSecurity and edit the rule.
      2. Select Actions and select the Log Forwarding profile you created.
      3. Set the Profile Type to Profiles or Group, and then select the security profiles or Group Profile required to trigger log generation and forwarding for:
        • Threat logs—Traffic must match any security profile assigned to the rule.
        • WildFire Submission logs—Traffic must match a WildFire Analysis profile assigned to the rule.
      4. For Traffic logs, select Log At Session Start and/or Log At Session End.
        Log At Session Start consumes more resources than logging only at the session end. In most cases, you only Log At Session End. Enable both Log At Session Start and Log At Session End only for troubleshooting, for long-lived tunnel sessions such as GRE tunnels (you can't see these sessions in the ACC unless you log at the start of the session), and to gain visibility into Operational Technology/Industrial Control Systems (OT/ICS) sessions, which are also long-lived sessions.
      5. Click OK to save the rule.
    4. Configure the destinations for System, Configuration, Correlation, GlobalProtect, HIP Match, and User-ID logs.
      Panorama generates Correlation logs based on the firewall logs it receives, rather than aggregating Correlation logs from firewalls.
      1. Select DeviceLog Settings.
      2. For each log type that the firewall will forward, see Step Add one or more match list profiles.
    5. (PA-7000 Series firewalls with Log Processing Cards only) Configure a log card interface to perform log forwarding.
      As of PAN-OS 10.1, you can no longer forward system logs and other Management plane logs using the Management interface or service routes. The only way to forward system logs from a PA-7000 Series firewall with a LPC running PAN-OS 10.1 or later is by configuring a log card interface
      1. Select NetworkInterfacesEthernet and click Add Interface.
      2. Select the Slot and Interface Name.
      3. Set the Interface Type to Log Card.
      4. Enter the IP Address, Default Gateway, and (for IPv4 only) Netmask.
      5. Select Advanced and specify the Link Speed, Link Duplex, and Link State.
        These fields default to auto, which specifies that the firewall automatically determines the values based on the connection. However, the minimum recommended Link Speed for any connection is 1000 (Mbps).
      6. Click OK to save your changes.
    6. (PA-5450 firewall only) Configure a log interface to perform log forwarding.
      This step is not required if you are forwarding logs to a Panorama or Strata Logging Service using the management interface. The management interface handles log forwarding by default and does not require the log interface to be configured.
      • (PAN-OS 10.1.0 to 10.1.6) The management interface handles log forwarding by default unless you configure a specific service route for log forwarding.
      • (PAN-OS 10.1.6-h3 and later releases) The management interface handles log forwarding by default unless you configure the log interface or a specific service route for log forwarding. If a log interface is configured and committed, all internal logging, Strata Logging Service, SNMP, HTTP, and Syslog will be forwarded by the log interface.
      All services, such as SNMP, HTTP, and Syslog, are routed through the management or data interface. If you designate a specific service route for a service, then that service route is prioritized for log forwarding over the interface.
      Ensure that the log interface you are configuring is not in the same subnetwork as the management interface. Configuring both interfaces in the same subnetwork can cause connectivity issues and result in the wrong interface being used for log forwarding.
      The Log ports (LOG-1 and LOG-2) are bundled by default as a LAG (link aggregation group). To leverage both ports, they must be connected to a LAG aware switch.
      1. Select DeviceSetupManagement.
      2. Select the settings gear on the top menu bar of Log Interface.
      3. Fill in the IP Address, Netmask, and Default Gateway fields.
        If your network uses IPv6, fill in the IPv6 Address and IPv6 Default Gateway fields instead.
        When the log interfaces are configured with an IP address, communication between the firewall and Panorama will automatically switch from being handled by the management interface (default) to the log interface.
      4. Specify the Link Speed, Link Duplex, and Link State.
        These fields default to auto, which specifies that the firewall automatically determines the values based on the connection.
      5. Click OK to save your changes.
    7. Commit and verify your changes.
      1. Commit your changes.
      2. Verify the log destinations you configured are receiving firewall logs:

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