User`s guide

Time
Interface
Additionally, Intrusion Prevention, SYN flood protection, and a limit on the number of sessions per source IP address can be enforced.
To create, edit, or change the order of firewall rules, go to the page. FIREWALL > Firewall Rules For more about matching criteria and
possible firewall rule actions, see Firewall Rules . If you are new to the Barracuda Firewall, see Pre-Installed Firewall Rules t
o review the rules that are already set up in the appliance. You can use these preinstalled rules as a starting point
for your own rules.
In this Section
Firewall Rules
Firewall Rules Order
Pre-Installed Firewall Rules
Connection Objects
Service Objects
Interface Groups
Link Balancing
Intrusion Prevention System or IPS
How to Control Traffic for Applications
How to Create User-Aware Firewall Rules
How to Configure Bandwidth Policies or QoS
How to Configure the Captive Portal
Example - Allowing HTTP Traffic
Example - Handling SMTP Traffic
Example - Allowing SIP-based VoIP Traffic
Example - Blocking FTP Traffic
Example - Configuring a DNAT Firewall Rule
Example - Creating Time-Based Firewall Rules
Example - Limiting Traffic for Applications
Example - Creating Connection Objects for Failover and Link Balancing
Example - Routing Traffic Over Two Different ISP Connections
Example - Configuring Dual ISPs with Automatic Failover
Firewall Rules
This article provides an overview of the parameters that you can define for firewall rules.
In this article:
About Firewall Rule Objects
Attributes of Firewall Rules
Applications/Bandwidth
Users/Time
Advanced
About Firewall Rule Objects
In the Barracuda Firewall, a firewall object is a named collection that represents specific networks, services, or connections. Using firewall objects
gives you the following advantages:
Each object has a unique name that is more easily referenced than an IP address or a network range.
Maintenance of the firewall rules is simplified. When you update a firewall object, the change is automatically updated in every rule that
uses the object.
Attributes of Firewall Rules
Each firewall rule has the following attributes:
Name – The name of the firewall rule. This name is displayed on the , , anBASIC > Active Connections BASIC > Recent Connections
d pages.BASIC > IPS Events