Specifications

Chapter 2: Installing the Barracuda Link Balancer 17
Link Balancer, do not power off during an update or download. To view the progress of the
download, click
Refresh. You will be notified when the download is complete.
3. Click
Apply Now to apply the firmware. Click OK to acknowledge the reboot message. Applying
the firmware takes a few minutes to complete.
4. After the firmware has been applied, the Barracuda Link Balancer automatically reboots. When
the system comes back up, the login page is displayed.
Step 4: Configure Permanent WAN Settings
1. After the Barracuda Link Balancer has rebooted, login to the Web user interface and go to the
Basic > Links page.
2. For each link that will be connected to this unit:
2a. Click the relevant WAN port in the graphic.
2b. In the Links Configuration section enter the details for the link to be connected to the
WAN port.
Some of the configuration information is provided by your ISP - be sure to enter it
correctly.
2c. Click
Save Changes.
Step 5: Configure the Barracuda Link Balancer Firewall
Create firewall rules on the Barracuda Link Balancer to match the settings of your current firewall.
More information about firewall settings can be found at Configuring the Firewall on page 21.
1. Go to the
Firewall > Inbound page to add inbound rules.
2. Go to the
Firewall > Outbound page to add outbound rules.
3. Go to the
Firewall > NAT page to add 1:1 NAT and port forwarding rules.
Step 6: Configure Permanent LAN IP Address
1. Change the LAN IP address of the Barracuda Link Balancer to its permanent setting as the
default gateway for your network. To change the LAN IP address, go to the
Basic > IP
Configuration
page and change the IP Address and Subnet Mask. Click Save Changes.
2. The connection to the PC that you were using will terminate.
3. Unplug the cable connecting your PC to the Barracuda Link Balancer.
4. Power down your Barracuda Link Balancer using the power button on the front of the unit.
Note: For each WAN interface that has a static IP address, enter all of your externally
accessible servers in the
Additional IP Addresses field. These need to be identified so that traffic
can be accepted for them.
You will also need to reconfigure the servers with private IP
addresses. In the next step you can create firewall 1:1 NAT rules to direct traffic to those
systems.