User`s guide

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The interface must be configured on port p4 with an IP address of 69.122.23.58 and a netmask of 255.255.255.0 (or /24). The default gateway of
the ISP is 69.122.23.254.
Configure the static network interface with the following settings:
Setting Value
Network Interface Select .p4
IP Address
Enter .69.122.23.58
Netmask
Enter .255.255.255.0
Classification Click .WAN
Gateway
Enter .69.122.23.254
How to Configure a PPPoE Connection
Follow these instructions if your WAN interface is provided using PPPoE. This protocol is typically used by ISPs that offer DSL. If your ISP
provides a modem, connect the Ethernet port of the modem to a free network interface of your Barracuda Firewall. Use the Ethernet cable that is
delivered with the modem. If a cable was not delivered with the modem, please clarify if the modem must be connected to another device with a
standard Ethernet cable or a crossover cable.
Go to the page.NETWORK > IP Configuration
In the section, click .Dynamic Interface Configuration Add Dynamic Network Interface
From the list, select the network interface that the ISP modem is connected to on the Barracuda Firewall.Network Interface
Enter a name for the new connection.
Select the following settings:
Network Protocol: PPPoE
Classification: WAN
Configure the remaining settings for your network requirements.
If your dial-in connection requires mode, select the check box. If you are not sure which mode to use,Synchronous PPP
contact your ISP.
For the initial configuration, keep the default value of . In a multiprovider configuration, the Barracuda FirewallMetric 100
chooses the interface with the lowest metric for outgoing traffic.
You can make the Barracuda Firewall reachable with a unique identifier (DNS-resolvable name). For , select Use Dynamic DNS
and enter your DynDNS credentials. For more information on the DynDNS service, see .Yes http://dyn.com/dns/
You can manually start and stop the link. For To control the link, go to theConnection Start Method, . select Manual Dynamic
page.section of the Network Interfaces NETWORK > Interfaces
To monitor the Internet connection, select a type of to perform. Health Check Most ISPs support LCP to continuously monitor
successful data transmission. However, you can use ICMP requests for monitoring the Internet connection. If you use ICMP for
link monitoring, add a target IP address to the list.Health Check Target
Click .Add
At the top of the page, click on the warning message to execute the new network configuration.
After committing your changes, log back into the Barracuda Firewall.
How to Configure a 3G Dial-In Connection
To establish wireless Internet connections, you can install the external Barracuda M10 USB modem on the Barracuda Firewall. 3G connections
are ideal for backup lines and for use in mobile offices or locations without terrestrial Internet links.