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SonicOS 5.8.1 Administrator Guide
Note The Interface Rank does not specify the operation that will be performed on the individual
member. The operation that will be performed is specified by the Group Type.
Probing Tab
When Logical probing is enabled, test packets can be sent to remote probe targets to verify
WAN path availability. A new option has been provided to allow probing through the additional
WAN interfaces: Alternate WAN #3 and Alternate WAN #4.
Note VLANs for alternate WANs do not support QoS or VPN termination.
To configure the probing options for a
specific Group, click the Configure icon of the Group
you wish to configure on the Network > Failover & LB page. Then, click the Probing tab.
The Probing tab allows the user to modify the following settings:
• Check Interface—The interval of health checks in units of seconds
• Deactivate Interface—After a series of failed health checks, the interface sets to “Failover”
• Reactivate Interface—After a series of successful health checks, the interface sets to
“Available”
• Probe responder.global.sonicwall.com on all interfaces in this group—Enable this
checkbox to automatically set Logical/Probe Monitoring on all interfaces in the Group.
When enabled, this sends TCP probe packets to the global SNWL host that responds to
SNWL TCP packets, responder.global.sonicwall.com, using a target probe destination
address of 204.212.170.23:50000. Once this checkbox is selected, the rest of the probe
configuration will automatically enable built-in settings. The same probe will be applied to
all four WAN Ethernet interfaces. Note that the Dialup WAN probe setting also defaults to
the built-in settings.
Load Balancing Statistics
The Load Balancing Statistics table displays the following LB group statistics for the
SonicWALL:
• Total Connections
• New Connection
• Current Ratio
• Average Ratio
• Total Unicast Bytes
• Rx Unicast
• Rx Bytes