7: Networking
EMG™ Edge Management Gateway User Guide
89
Fail-Over Cellular Gateway Configuration
Fail-over Device
Note:
This section is for external gateways accessible over the Eth2 Ethernet port
only. For internal cellular modems (EMG models only), see Cellular Modem.
Select an integrated external device to be used as the fail-over gateway. Currently
the
Lantronix PW XC HSPA+
Cellular Gateway and the
Sierra Wireless ES450
Cellular Gateway are supported. When using an internal cellular modem as the fail-
over gateway, the Fail-over Device should be set to
None
.
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 console manager automatically disables UPnP on the HSPA+
gateway. If PIN or PUK is required by HSPA but not supplied by console manager
then a syslog message and a non fatal error message will be generated.
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 console manager, and assigning a static IP address to
the console manager 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 fail-over 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 the HSPA+ gateway is 8.1.0.0
and for the Sierra Wireless ES450 gateway 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 console manager.
When the console manager sends an updated configuration to the fail-over device,
it is recommended to check the console manager syslog, even if the console
manager 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 resent 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.
Note:
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.
Summary of Contents for EMG 7500
Page 100: ...7 Networking EMG Edge Management Gateway User Guide 100 Figure 7 5 Network Wireless Settings ...
Page 353: ...15 Maintenance EMG Edge Management Gateway User Guide 353 Figure 15 12 About EMG ...
Page 474: ...EMG Edge Management Gateway User Guide 474 Figure E 3 EU Declaration of Conformity ...
Page 475: ...EMG Edge Management Gateway User Guide 475 Figure E 4 EU Declaration of Conformity continued ...