Cisco Catalyst SD-WAN Upgrade Guide

Upgrade the firmware for P-LTE-450 MHz or Wi-Fi modules

Updated: July 1, 2026

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Upgrades the firmware on P-LTE-450 MHz or Wi-Fi modules using the firmware upgrade workflow. This procedure ensures that the modules run the latest supported software versions.

Minimum supported release: Cisco Catalyst SD-WAN Manager Release 20.18.1 and Cisco IOS XE Catalyst SD-WAN Release 17.18.1a

This section provides the steps to upgrade the firmware on your Cisco IOS XE Catalyst SD-WAN device .

Before you begin

See the prerequisite and restrictions sections.
See the Supported platforms for cellular modem firmware upgrade section.

Procedure

From the Cisco SD-WAN Manager menu, choose Workflows > Firmware Upgrade .

In the workflow, follow the prompts to choose the devices to upgrade and proceed with one of the methods in the following table based on your scenario.


If...	Then...
You have configured the remote server for storing firmware image files.	Follow the prompts to choose the server and the firmware image path.
You want to configure a remote server in the firmware upgrade workflow.	After choosing the device or devices to upgrade, click the Select remote server dropdown, click Create New , and enter the required fields in the Add Remote Server dialog.
You want to configure a remote server from Maintenance > Software Repository .	Configure a file server as described in Configure a remote file server for firmware upgrade images .

Table 1. Add Remote Server
Field	Description
Server Name	Enter a name for the file server with the firmware upgrade files.
Server IP or DNS Name	IP address or DNS name of the file server.
Protocol	Choose the SCP protocol. Note For P-LTE-450 MHz and Wi-Fi modules, choose only SCP protocol.
Port	Enter the port that you have configured for the remote server. Default (for SCP): 22.
User ID and Password	Enter the login credentials for the file server.
Image Location Prefix	Enter the path to the directory storing the firmware upgrade files.
VPN	Enter the VPN that you have configured for reaching the remote server interface.

Table 2. Image Path Location
If...	Then...
A relevant firmware upgrade file exists at the image path location.	The device uses the file for the upgrade.
More than one relevant firmware upgrade file is available.	The device uses the latest version.
No relevant file exists at the image path location.	The device checks the availability of files on the specified remote server. The firmware upgrade fails if no valid files are found on the remote server. This status is indicated in the Summary page of the workflow.

Cisco SD-WAN Manager upgrades only the currently active firmware type.

If you have not configured a remote server, click the Select remote server dropdown, click Create New , and enter the required fields.
Optionally, schedule the upgrade for a specific time.
On the Summary page, review the details and click Next to begin the upgrade task.
(Optional) Click Check my upgrade task to see the status of the upgrade or upgrades for each device.

What to do next

View status of the firmware upgrade: View the status of a cellular modem firmware upgrade

Need help?

Open a support case

(Requires a Cisco Service Contract)

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