Creating a LoRa Mesh Network

1. What is Whitelisting?

Whitelisting is a simple mechanism to security create a Wireless LoRa gatekeeper system. You tell your AlphaMon devices which other remote AlphaMons can be “trusted”, as part of your local wireless “mesh” network. The list of trusted devices is called a “whitelist” and it consists of a strict list of approved hardware tracking identifiers (MAC addresses).

When an AlphaMon device is configured to listen for LoRa radio data packets it can optionally instantly checks the sender’s identity against the pre-approved whitelist. If the device is on the list, the data packet is safely processed. If it is not on the list, the packet is discarded.

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2. Why is Whitelisting Useful?

By default, the AlphaMon operates as an open, adaptive LoRa mesh network to make device setup as easy as possible. However, because radio frequencies travel through physical walls, your receiver might catch transmissions from a neighbor’s AlphaMon system.

Whitelisting is useful because it:

• Prevents Data Cross-Talk: Stops outside solar inverters or electricity meters from accidentally registering on your local home network.
• Protects System Memory: Ensures your AlphaMon’s memory and storage are never compromised by unauthorized third-party data streams.
• Optimizes Processor Speeds: Instantly discards radio noise , keeping your hardware fully responsive.

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3. When Should I Use Whitelisting?

You should activate your local whitelisting filters if:

• You live in a high-density area or suburban street where multiple homes run AlphaMon monitoring nodes on the same radio frequency.
• Your local console logs are catching unfamiliar device data strings or throwing unmapped device profile warnings.
• You want absolute, locked-down confirmation that your cloud databases and historical graphs only map your own hardware assets.

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4. How to Implement It for Your AlphaMon LoRa Mesh

Enabling a strict security perimeter on your AlphaMon is a simple, zero-code configuration process.

Step 1: Identify Your Suffix Footprints

Check the serial monitor log or the status screen of the specific remote transmitter node you want to authorize. Note down its unique hexadecimal MAC address (64E833-637651), as shown below.

Welcome to The AlphaMon Platform
LoRa Energy Monitor
AlphaMon V4.17.8
Built: Jun 29 2026 15:07:54 
(c)2023-26 Solargy Innovation
https://AlphaMon.net
App Size: 3264 KB
Free RAM: 269620 bytes
MAC:64E833-637651

Step 2: Edit Your Configuration File

Using a serial terminal session, edit your AlphaMon’s Configuration File and locate your dedicated LoRa network security section (LORA_1 through LORA_5).

Step 3: Insert Your Approved Targets

Add the MAC addresses of all the AlphaMon devices in your local LoRa mesh network, like this example:

LORA_1 = "64E833-637651"
LORA_2 = "64E833-7AB084"
LORA_3 = ""
LORA_4 = ""
LORA_5 = ""

Step 4: Save and Restart

After a few seconds your AlphaMon will automatically flush the updated Config File settings to its storage and activate the whitelist security guard when the AlphaMon device is restarted, either by pressing the reset button or turning the power off and on again.
Note: If the AlphaMon is physically inaccessible, you can also type the “SYS REBOOT” command to restart the AlphaMon remotely.

How to Disable Whitelisting

If your AlphaMon devices are permanently connected to a shared, hardwired network and you have no need for remote LoRa radio deployed across your site, you can completely disable the physical LoRa transceiver module.

To turn off the radio mesh completely:

1. Open your Configuration File.
2. Locate the global radio enabling parameter: LORA_MESH_ENABLE.
3. Set the parameter value explicitly to OFF or 0:

LORA_MESH_ENABLE = "OFF"

4. Save the file settings and reboot.