Citrix SD-WAN

Configure external USB LTE modem

July 16, 2021

Contributed by:

C S

You can connect an external 3G/4G USB modem on certain Citrix SD-WAN appliances. The appliances use the 3G/4G network along with other connections to form a virtual network that aggregates bandwidth and provides resiliency. If there is a connectivity failure on the other interfaces, traffic is automatically redirected through the USB LTE modem. The following appliances support an external USB modem:

Citrix SD-WAN 210 SE
Citrix SD-WAN 210 SE LTE
Citrix SD-WAN 110 SE
Citrix SD-WAN 110 LTE Wi-Fi SE

The Citrix SD-WAN 210 SE LTE and Citrix SD-WAN 110 LTE Wi-Fi SE appliances have a built-in LTE modem. Active dual LTE is supported on these appliances.

Connecting the USB modem

Enable and test the USB modem according to the guidelines provided by your wireless carrier.

Perquisites for external LTE modem:

Use the supported USB LTE dongles. The supported dongle hardware models are Verizon USB730L and AT&T USB800.
Ensure that a SIM card is inserted into the USB LTE dongle. The CDC Ethernet LTE dongles are pre-configured with a static IP address, this interferes with the configuration and cause connection failure or intermittent connection, if the SIM card is not inserted.
Before inserting a CDC Ethernet LTE dongle into the SD-WAN appliance, connect the external USB stick to a Windows/Linux machine and ensure that the internet is working properly with proper APN and Mobile Data Roaming configuration.

Note

The Citrix SD-WAN appliances support only one USB LTE dongle at a time. If more than one USB dongle is plugged in, unplug all the dongles and plug in only one dongle.

The Citrix SD-WAN appliances do not support user name and password for USB modems. Ensure that user name and password feature is disabled on the modem during setup.

To view the external modem details, in the appliance UI navigate to Configuration > Appliance Settings > Network Adapters > Mobile Broadband. Select External Modem as the modem type.

Status information

Note

The SIM PIN and other LTE modem configurations are currently not supported.

The LTE USB dongle model number is not displayed in Status Info section.

You can remotely view and manage all the LTE sites in your network using Citrix SD-WAN Center. For more information see, Remote LTE site management.

Configure the external USB modem

To configure an external USB modem, in the Configuration Editor navigate to Sites, select a site, and click Interface Groups. The external USB modem interface LTE-E1 is available to be configured. For more information on configuring a branch for LTE, see Configure branch for LTE.

LTE-E1 interface

Zero-touch deployment over LTE

Pre-requisites for enabling zero-touch deployment service over USB LTE modem:

Insert the USB modem in the Citrix SD-WAN appliance. For more information, see Connecting the USB modem.
Ensure that the SIM card on the USB modem has an activated data plan.
Ensure that the management/data port is not connected. If the management/data port is connected, disconnect it.
Ensure the appliance configuration has internet service defined for the LTE interface.

When the appliance is powered on, the zero-touch deployment service uses the LTE-E1 port to obtain the latest SD-WAN software and SD-WAN configuration.

Use the SD-WAN Center GUI to deploy and configure the appliance for the zero-touch deployment service. For more information, see Zero Touch Deployment. For information about zero-touch deployment through SD-WAN Orchestrator see, Zero Touch Deployment.

Supported USB modems

The following modems are compatible with Citrix SD-WAN appliances.

Note

Citrix does not control the wireless carrier firmware updates. Therefore compatibility of new modem firmware to Citrix SD-WAN software is not guaranteed. Modem firmware update is controlled by the customer. Citrix recommends testing a firmware update on a single site before pushing it across the entire network.

Region	Wireless Carrier/ Manufacturer	USB Modem	Citrix SD-WAN 210 SE/LTE	Citrix SD-WAN 110 SE/LTE-WiFi	Interfaces
USA	Verizon	Global Modem USB730L	Yes	Yes	4G only
		AT&T	AT&T Global Modem USB800	Yes	Yes

The official version of this content is in English. Some of the Cloud Software Group documentation content is machine translated for your convenience only. Cloud Software Group has no control over machine-translated content, which may contain errors, inaccuracies or unsuitable language. No warranty of any kind, either expressed or implied, is made as to the accuracy, reliability, suitability, or correctness of any translations made from the English original into any other language, or that your Cloud Software Group product or service conforms to any machine translated content, and any warranty provided under the applicable end user license agreement or terms of service, or any other agreement with Cloud Software Group, that the product or service conforms with any documentation shall not apply to the extent that such documentation has been machine translated. Cloud Software Group will not be held responsible for any damage or issues that may arise from using machine-translated content.

Configure external USB LTE modem

July 16, 2021

Contributed by:

C S

July 16, 2021

Contributed by:

C S

Configure external USB LTE modem

Connecting the USB modem

Configure the external USB modem

Zero-touch deployment over LTE

Supported USB modems

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