6: Basic Parameters
SLC™ 8000 Advanced Console Manager User Guide 77
Fail-Over Cellular Gateway Configuration
Fail-over Device Select an integrated device to be used as the fail-over gateway. Currently the
Lantronix PremierWave XC HSPA+ Cellular Gateway and the Sierra Wireless
AirLink ES450 are supported. The HSPA+ gateway must be configured in gateway
mode before it can be used as the fail-over gateway. It is recommended that the
HSPA+ Cellular Connection Mode be set to On Demand, which will leave the link
quiescent until an application attempts to make use of the cellular network
connection. It is also recommended that the SNTP protocol be disabled, as On
Demand mode uses the egress traffic as a trigger.
The Sierra gateway must be properly provisioned before first use by initializing the
APN of the installed SIM card. This is done by connecting the Sierra gateway to the
second ethernet port of the SLC, and assigning a static IP address to the SLC port
so that it is in the same subnet as the IP address of the Sierra gateway. Use the
console CLI or web GUI to set the APN of the SIM card. After setting the APN,
power cycle the Sierra gateway and allow it to reboot completely.
The failover feature requires that both Ethernet ports be configured with a static IP
address. Using DHCP on one of the Ethernet ports may overwrite the default route,
interfering with fail-over and fail-back.
Note: The commands sent to the fail-over device to retrieve status and update the
configuration are shown in the syslog (messages may be displayed under Network
syslog; at the Debug level). If there are errors retrieving status or updating the
configuration, check messages in the Network syslog, the device administrator
login/password, connectivity to the device and the firmware version of the fail-over
device (the minimum required firmware version for HSPA+ is 8.1.0.0 and for Sierra
Wireless ES450, it is 4.9.2). For the HSPA+ gateway, if the firmware is updated and
new items are added to the status output by the gateway, the new items will
automatically be displayed on the SLC.
When the SLC sends an updated configuration to the fail-over device, it is
recommended to check the SLC syslog, even if the SLC indicates that the update
was successful. Responses from the fail-over device indicating that the device
needs to be rebooted for configuration changes to take affect may also be in the
syslog. The configuration will be re-sent to the device if any of the fail-over device
settings are changed, or the selected fail-over device is changed from None to one
of the supported fail-over device types.
When a fail-over or fail-back occurs, running applications such as VPN tunnel and
ConsoleFlow will be restarted.
APN of Mobile
Carrier
For the HSPA+ and Sierra gateways, configure the Access Point Name for the
mobile carrier. May have up to 256 characters.
Admin Login and
Password/Retype
For the selected Fail-over Device, the administrator login and password used to
retrieve status from the device and send configuration updates to the device. The
login may have up to 32 characters, and the password may have up to 64
characters. The Admin Password displays the current password masked.
Change Admin
Password (check
box)
Select this check box if you wish to update the admin password for the selected
gateway Fail-over Device.
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