Sonicwall Nsa 240 Getting Started Guide Page - SonicWALL NSA 240 Getting Started Manual

Configuring an HA Pair in NAT/Route Mode
This section provides instructions for configuring a pair of
SonicWALL NSA appliances for High Availability (HA). This
section is relevant to administrators following deployment
Scenario B.
This section contains the following subsections:
- page 25
• Initial HA Setup
- page 26
• Configuring HA
• Configuring Advanced High Availability Settings
• Synchronizing Settings
• Configuring HA License Overview
• Associating Pre-Registered Appliances
- page 26
- page 28
- page 29
- page 30
Initial HA Setup
Before you begin the configuration of HA on the Primary
SonicWALL security appliance, perform the following setup:
1. On the back panel of the Backup SonicWALL security
appliance, locate the serial number and write the number
down. You need to enter this number in the High
Availability > Settings page.
2. Verify that the Primary SonicWALL and Backup
SonicWALL security appliances are registered, running the
same SonicOS Enhanced versions, and running the same
SonicWALL Security services.
3. Make sure the Primary SonicWALL and Backup
SonicWALL security appliances' LAN, WAN and other
interfaces are properly configured for failover.
4. Connect the X8 ports on the Primary SonicWALL and
Backup SonicWALL appliances with a CAT6-rated
crossover cable (red crossover cable). The Primary and
Backup SonicWALL security appliances must have a
dedicated connection. SonicWALL recommends cross-
connecting the two together using a CAT 6 crossover
Ethernet cable, but a connection using a dedicated
100Mbps hub/switch is also valid.
5. Power up the Primary SonicWALL security appliance, and
then power up the Backup SonicWALL security appliance.
6. Do not make any configuration changes to the Primary's
X8; the High Availability configuration in an upcoming step
takes care of this issue.
SonicWALL NSA 240 Getting Started Guide Page 25