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Configuring a Stateful HA Pair | 38
Configuring a Stateful HA Pair
This section provides instructions for configuring a pair of Dell
SonicWALL NSA E8510 appliances for high availability (HA).
This section is relevant to administrators following deployment
Scenario B.
This section contains the following sub-sections:
• Initial High Availability Setup - page 38
• Configuring High Availability - page 39
• Configuring Advanced HA Settings - page 39
• Configuring HA Monitoring Settings - page 41
• Synchronize Settings - page 41
• HA License Configuration Overview - page 42
• Associating Pre-Registered Appliances - page 43
Initial High Availability Setup
Before you begin the configuration of HA on the Primary Dell
SonicWALL security appliance, perform the following setup:
• On the bottom panel of the secondary Dell SonicWALL
security appliance, locate the serial number and write the
number down. You need to enter this number in the High
Availability > Settings page.
• Verify that the primary and secondary Dell SonicWALL
security appliances are registered, running the same SonicOS
versions.
• Make sure the primary and secondary Dell SonicWALL
security appliances’ LAN, WAN and other interfaces are
properly configured for failover.
• Connect the HA ports on the primary and secondary Dell
SonicWALL appliances with a CAT6-rated crossover cable
(red crossover cable). The primary and secondary Dell
SonicWALL security appliances must have a dedicated
connection using the HA interface. Dell 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.
SonicWALL NSA E-Class 1
SonicWALL NSA E-Class 2
HA
HA
X0
X1
X1
X0
E5500
Network Security Appliance
E5500
Network Security Appliance
Local Network
SonicWALL
HA / Failover Pair
Internet
HA Link