Barracuda Networks SSL VPN User manual

SSL VPN
Barracuda SSL VPN - Quick Start Guide
The Barracuda SSL VPN is a secure remote access appliance that allows you to access
your internal network resources such as files, intranet Web sites and client/server
applications using just a standard Web browser. It is common for the Barracuda SSL
VPN to be installed directly inside your LAN or in a more advanced DMZ configuration.
Getting Started
This guide provides you with setup instructions for the Barracuda SSL VPN. We
recommend reading these instructions fully before starting the setup. To begin
setting up your Barracuda SSL VPN, you will need the following:
Barracuda SSL VPN
AC Power Cord
Ethernet Cables
VGA Monitor (recommended)
PS2 Keyboard (recommended)
Physical Installation
To install the Barracuda SSL VPN:
1. Fasten the Barracuda SSL VPN to a 19-inch rack or place it in a stable
location.
2. Connect an Ethernet Cable from your network switch to the Ethernet port on
the back of the Barracuda SSL VPN.
3. Connect a Standard VGA Monitor, PS2 Keyboard, and AC power cord to the
Barracuda SSL VPN. Note: Immediately after connecting an AC Power Cord
to the Barracuda SSL VPN, it may power ON for a few seconds and then
power OFF. This is because the Barracuda SSL VPN is designed to
automatically return to a powered ON state in the event of a power outage.
4. Press the POWER button on the front panel to turn it on.
Configure IP Address and Network Settings
If you have a monitor connected, the Barracuda SSL VPN will display the Boot
Menu initially, and the Administrative Console login prompt once fully booted.
To begin the configuration:
1. Login to the Administrative Console using the admin login:
Login: admin
Password: admin
2. Configure the IP Address, Subnet Mask, Default Gateway, Primary DNS
Server and Secondary DNS Server as appropriate for your network.
3. Save your changes.
If you do not have a monitor and keyboard and want to set the IP address using
the RESET button on the front panel, press and hold the RESET button per the
following table:
IP address Press and hold RESET for…
192.168.200.200 5 seconds
192.168.1.200 8 seconds
10.1.1.200 12 seconds
Opening Firewall Ports
If your Barracuda SSL VPN is located behind a corporate firewall, ensure that
the following ports on your firewall are open to ensure proper operation.
Port Direction TCP UDP Usage
25 Out Yes No Email alerts + One-time passwords
53 Out Yes Yes Domain Name Service (DNS)
80 Out Yes No Virus, firmware and updates
123 Out No Yes Network Time Protocol (NTP)
443 In/Out Yes No HTTPS/SSL port for SSL VPN access
8000 In/Out Yes No Appliance administrator interface port (HTTP)
8443 In/Out Yes No Appliance Administrator interface port (HTTPS)
Note: The Appliance Administrator interface ports on 8000/8443 should only be
opened if you intend to manage the appliance from the Internet.
Barracuda SSL VPN Configuration
Use a computer with a Web browser that is connected to the same network as
the Barracuda SSL VPN and follow these steps:
1. In your Web browser’s address bar, enter http:// followed by the IP address
of the Barracuda SSL VPN, followed by the default Appliance Administrator
Web interface HTTP port (:8000). For example, if you configured the
Barracuda SSL VPN with an IP address of 192.168.200.200, you would type:
http://192.168.200.200:8000
2. Log in to the Appliance Administrator Web interface as the administrator:
Username:admin
Password:admin
3. Go to the BasicIP Configuration page and perform the following:
Verify the IP Address, Subnet Mask, and Default Gateway.
Verify the Primary and Secondary DNS Server.
If you are using a proxy server on your network, you should also verify the
Proxy Server Configuration settings.
4. Click any one of the Save Changes buttons to save all of the information.

SSL VPN
Barracuda SSL VPN - Quick Start Guide
Update the Firmware
Go to AdvancedFirmware Update. If there is a new Latest General
Release available, perform the following steps to update the system firmware:
1. Click on the Download Now button located next to the firmware version that
you wish to install. To view download progress, click on the Refresh button.
When the download is complete, the Refresh button will be replaced by an
Apply Now button.
2. Click on the Apply Now button to install the firmware. This will take a few
minutes to complete. To avoid damaging the Barracuda SSL VPN, do not
manually power OFF the system during an update or download.
3. After applying the firmware, the Barracuda SSL VPN will automatically
reboot, displaying the login page when the system has come back up.
4. Log back into the Appliance Administrator Web interface and read the
Release Notes to learn about enhancements and new features. It is also
good practice to verify any settings you may have already entered, as new
features may have been included with the firmware update.
Change the Administrator Password
To avoid unauthorized use, we recommend you change the password for the
default Appliance Administrator Web interface to a more secure password. You
can only change the password for the Appliance Administrator Web interface.
You cannot change the password for the Administrative Console, which is only
accessible via the keyboard which you can disconnect at any time.
1. Go to BasicAdministration and enter your old and new passwords.
2. Click on Save Password.
Product Activation
Verify that the Energize Updates feature is activated on your Barracuda SSL
VPN by going to the BasicStatus page.
1. Under Subscription Status, make sure the Energize Updates subscription is
Current. If the Energize Updates is Not Activated, click the corresponding
activation link to go to the Barracuda Networks Product Activation page and
complete activation of your subscriptions.
2. Reboot your Barracuda SSL VPN.
Route Incoming SSL Connections to the Barracuda SSL VPN
To take advantage of all available features, you must route HTTPS incoming
connections on port 443 to the Barracuda SSL VPN. This is typically achieved by
configuring your corporate firewall to port forward SSL connections directly to the
Barracuda SSL VPN.
Note: The Appliance Administrator Web interface ports on 8000/8443 will also
need similar port forward configurations if you intend to manage the appliance
from outside the corporate network.
Verify Incoming Connections to the Barracuda SSL VPN
Once you have configured your corporate firewall to route SSL through to the
Barracuda SSL VPN, you should be able to accept incoming SSL connections.
1. To test the connection, use a Web browser from the Internet (not inside the
LAN) to establish an SSL connection to the external IP address of your
corporate firewall. For example, if your firewall’s external IP address is
192.168.1.1, connect your browser to: https://192.168.1.1
2. You will be prompted to accept an un-trusted SSL certificate, which will
cause a warning message to appear in your browser. Accept the warning
and proceed to load the page.
3. You will be prompted with the login page for the SSL VPN User Interface.
Log in with the credentials for the VPN administrator:
Username: ssladmin
Password: ssladmin
4. You will now be successfully logged in as the VPN administrator, and taken
directly to the SSL VPN Management Interface. From here you can set up
accounts and other resources for users of the Barracuda SSL VPN.
Post-Setup Configuration Items
Your Barracuda SSL VPN should now be at the minimum configuration required
to accept incoming connections from the Internet. Refer to your product
documentation as necessary for more details regarding the following additional
steps:
Register a hostname with your DNS server for the Barracuda SSL VPN,
such as: sslvpn.example.com
Install an SSL certificate on the Barracuda SSL VPN for the hostname,
to ensure your users are able to determine that they are connecting to a
genuine Barracuda SSL VPN that is registered to your organization.
Integrate the Barracuda SSL VPN with your existing user database. To
cleanly integrate with your environment, the Barracuda SSL VPN can
read in user accounts and authenticate against a number of different
databases, including Microsoft Active Directory.
Grant access to resources to your VPN users, set up a policy-based
access control framework.
If your network uses a DMZ you may wish to configure the Barracuda
SSL VPN in this topology for greater security.
Additional documentation, including the Administrator’s Guide, can be found at
http://www.barracuda.com/documentation.
Contact and Copyright Information
Barracuda Networks, Inc. 3175 S. Winchester Blvd, Campbell, CA 95008 USA phone: [phone] fax: [phone] www.barracuda.com
Copyright 2004-2009Barracuda Networks, Inc. All rights reserved. Use of this product and this manual is subject to license. Information in this document is
subject to change without notice. Barracuda SSL VPN is a trademark of Barracuda Networks, Inc. All other brand and product names mentioned in this document
are registered trademarks or trademarks of their respective holders. 10v1-081007-03-1029