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Barracuda CloudGen Firewall

This Firmware Version Is End-Of-Support

Documentation for this product is no longer updated. Please see End-of-Support for CloudGen Firewall Firmware for further information on our EoS policy.

How to Create and Apply QoS Bands

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Traffic shaping settings are applied to access and application rules via QoS bands.

1. Create a QoS Band

  1. Go to CONFIGURATION > Configuration Tree > Box > Traffic Shaping.
  2. Click Lock.
  3. Click the QoS Band tab. 
  4. Right-click the QoS Band table and select Add new QoS Band.
  5. In the Name field, enter a descriptive name. (The ID field specifies the index number of the new QoS band.)
  6. Click OK.
  7. In the QoS Band Rule window, you can edit the following settings to specify the priority, interface, and conditions for traffic that is handled by the QoS band:

    • Priority – Select the priority class that is assigned to data packets that are handled by the QoS band.
    • Virtual Device – Select the virtual interface into which the data packets will be fed, should this rule apply.
    • TOS – To specify a value that must be matched by the TOS in the IP header, select this check box.
    • Traffic Limit – Set the amount of traffic the QoS rule is valid for. After the limit is reached the next QoS is executed.
    • Time Period – To specify specific dates and times during which this rule can be applied, select this check box.
    • Weekday/Hour – To specify specific weekdays and times during which this rule can be applied, select this check box.
  8. Click  OK.
  9. Click Send Changes and Activate.

Example Scenario


2. Apply the QoS Band to an Access or Application Rule

  1. Go to CONFIGURATION > Configuration Tree > Box >Virtual Servers > your virtual server > Assigned Services > Firewall > Forwarding Rules.
  2. Click Lock.
  3. Create or double-click the access or application rule to which you are applying the QoS Band. For example, LAN-2-INTERNET-https
    •  Select the QoS Band from the QoS Band (Fwd) and QoS Band (Reply) list in the Policy section. For example, Background.
        • The outbound and inbound rate of a virtual interface is ignored when the QoS Band policy in the corresponding firewall rule is set to No-Shaping.

    • To apply the QoS Band to an application rule:
      • Select the Change QoS Band (Fwd) check box in the Policy section and select the QoS Band from the list.

  4. Click OK.
  5. Click Send Changes and Activate.

You can also apply traffic shaping settings to multiple rules. In the rule editor window for the rules, specify the following settings:

  • In the Rule Settings section, configure the Forward Band and Reverse Band settings.
  • In the TCP Policy section, configure the Syn Flood Protection setting.

For more information, see How to Edit, Copy, Clone, Deactivate, or Delete Access Rules.

Applying Traffic Shaping to VPN Tunnels

You can implement traffic shaping with VPN. For more information, see How to Apply Traffic Shaping to a VPN Tunnel.

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