The situation changes when the same network architecture needs to be deployed across multiple factories, pump stations, substations, or other remote sites.
If every cellular router is configured manually, differences can easily appear between sites. One router may have the correct VPN settings, another may be missing a firewall rule, while a third may use an incorrect LAN address.
The hardware itself may be working normally, but inconsistent configurations can make troubleshooting and long-term maintenance much more difficult.
A more practical approach is to create a validated configuration template first, then use it as the baseline for deploying multiple industrial routers.
When you receive the first industrial cellular router, it is usually better not to start copying its configuration immediately.
First, determine which parameters should remain consistent across all deployment sites.
Typical shared settings may include:
For example, the USR-G806w supports VLAN, static routing, multiple VPN protocols, firewall functions, network backup, and remote management.
These settings can first be configured according to the project's standard network architecture.
Once the first router has been fully tested, it can serve as the reference device for the configuration template.
This is one of the most important points in multi-site deployment.
The purpose of a configuration template is not to make every cellular router completely identical.
Instead, it should ensure that the parameters that are supposed to be identical remain consistent.
A practical approach is to divide router settings into two groups.
The first group contains common parameters, such as:
These settings can be included directly in the standard configuration template.
The second group contains site-specific variables, such as:
These parameters should be changed during deployment for each individual site.
This approach keeps the network policy consistent while still allowing each site to use its own addressing and identity information.
After the configuration template has been created, it should not be applied to every router immediately.
First, select one router with the same model and firmware version as the routers that will be deployed in the field.
At minimum, verify the following:
Only after these checks are completed should the configuration be used as the deployment baseline.
This small validation step can prevent a configuration error from being copied to an entire group of routers.
Once routers are installed at multiple remote sites, manually opening the Web UI of each device defeats much of the purpose of template-based deployment.
The USR-G806w supports remote management through PUSR's management platform, including remote parameter configuration, router restart, firmware upgrades, and device status monitoring. Batch configuration is also supported.
In practice, routers can be organized according to device model, project, or deployment site.
If the standard configuration needs to change later—for example, when modifying VPN settings, firewall rules, or network parameters—the changes can be managed remotely instead of requiring engineers to visit every site.
This is where configuration templates become especially useful.
They are not only a tool for the initial installation. They also help maintain the same configuration baseline across dozens or even larger fleets of cellular routers over time.
In some multi-site projects, standard locations may use a 4G cellular router, while sites with higher bandwidth requirements may use a 5G router.
For example, the USR-G816 supports 5G/4G connectivity, WAN failover, VPN, access control, and remote management through PUSR Cloud.
However, this does not mean that a complete configuration file created for the USR-G806w should be imported directly into the USR-G816.
A better approach is to standardize the configuration policy rather than force different router models to use the same configuration file.
For example, both router models can follow the same:
Then, a separate configuration template can be created for each router model.
This keeps network behavior consistent while avoiding compatibility problems between different hardware platforms.
Router configurations often continue to change after the initial deployment.
You may need to add a new VPN server, modify a firewall rule, change an APN, or update network parameters.
For this reason, it is useful to keep simple version numbers for configuration templates, for example:
Router-Template-V1
Router-Template-V2
Router-Template-V3
Each time a template is updated, record what has changed.
Then test the new version on a test router before applying it to production devices.
If the new configuration causes a problem, the previous validated version can be identified quickly instead of trying to remember how every parameter was configured before.
For multi-site industrial cellular router deployments, the main value of a configuration template is consistency.
A practical deployment process is to first define a standard network baseline, separate common parameters from site-specific variables, validate the configuration on one test router, and then use remote management for batch deployment and future maintenance.
When a new site is added, engineers no longer need to configure a router from scratch.
Instead, they can apply an already validated configuration framework and only modify the parameters that are specific to that site.
For manufacturers deploying and maintaining a large number of cellular routers, this approach can make the network easier to manage, easier to scale, and easier to troubleshoot.
