Lantronix EMG 8500 EMG User Guide - Page 89
Fail-Over Cellular Gateway Configuration, Fail-over Device, Lantronix PW XC HSPA
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7: Networking Fail-Over Cellular Gateway Configuration Fail-over Device APN of Mobile Carrier Note: This section is for external gateways accessible over the Eth2 Ethernet port only. For internal cellular modems (EMG models only), see Cellular Modem Settings. 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 failover 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. When the IP Passthrough Mode is disabled, the Sierra gateway connected to the second ethernet port (Eth2) of EMG, and assigning a static IP address to the EMG port so that it is in the same subnet as that of 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 default IP addresses are as follows: Lantronix PW XC HSPA+: 192.168.0.1 Sierra Wireless ES450: 192.168.13.31 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: If the IP Passthrough Mode is enabled on the Sierra ES450 then the second ethernet port of the console server should be configured for DHCP and the Sierra ES450's DHCP server should be in "Auto" mode with starting and ending IP address of the IP pool set to "0.0.0.0".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 When a fail-over or fail-back occurs, running applications such as VPN tunnel and ConsoleFlow will be restarted. For the HSPA+ and Sierra gateways, configure the Access Point Name for the mobile carrier. May have up to 256 characters. EMG™ Edge Management Gateway User Guide 89