ChirpStack Join Server

[zaher]

I learned that ChirpStack App Server supports using separate/custom/external/centralized join server by pointing [join_server.default] in loraserver.toml to its IP address. I wonder if I can actually use the ChirpStack Application Server as my external join server. For example, I plan to install the network server and application server on the gateway, but separate out the join server and install it on one server instance and have multiple gateways point out to that server instance. I was thinking to reinstall the ChirpStack Application Server on that server instance but use it only as a join server. Is this possible? Like can I turn off the application server functionalities and keep only the join server functionalities in the ChirpStack Application Server?

If not, I also found this Go code: https://github.com/brocaar/chirpstack-application-server/blob/master/internal/api/js/join_server.go
Do you think I can run this as a standalone application?

Thank you in advance!

[bconway]

External join servers are possible and supported. We have not had a need for one yet, so I cannot speak to it personally. Here are a couple relevant links:

'Secure' Join Server

I’m wanting to use some Cryptography functions to indentify my devices. ( using microchip ATEC608A on the device ). I’m looking at two different approaches; (a) Dive into the lorasever.io code and see if i can figure out what i’d need to do to modify / extend it to support the secure connectivity. The downside of this, is that i dont’ know go. (b) Write a secure join server and then use it along side Loraserver. ( using something that i do know ). I need to do some more work to udnerst…

Using LoRa Server with an external Join-Server

I manufactured thousands of LoRaWAN devices, each one has a unique DevEUI (I own a EUI range) and all share the same AppEUI/JoinEUI 7CCBE2C000000000 (also owned by me). The LoRa Alliance already set the DNS resolver for it at 0.0.0.0.0.0.0.0.0.c.2.e.b.c.c.7.joineuis.lora-alliance.org I want to run a Join Server, to process the authentication of the devices, so I don’t need to share the AppKey of every device with my customers. I plan to run just the lora-app-server alone for this purpose, d…

[zaher]

Thank you @bconway ! The links were helpful, however, my question was more about utilizing ChirpStack Application Server as a Join Server only that is installed outside of the gateway on a server. Does anyone have any experience or knowledge about that?

Thanks!

[pemsy]

I would like to ask how to configure chirpstack v4 so that one is as an application server and the other as a join server.
On the first one (chirpstack1) I have to set in section: [join_server]
server as [join_server.chirpstack2] server=“http://chirpstack2:8003”
join_eui=“0102030405060708”
and on the second(chirpstack2) in the section: [network_controller]
server=“http://chirpstack1:8003”
Should this configuration work? Do I need to set some other endpoint?

[brocaar]

@pemsy

so that one is as an application server and the other as a join server

ChirpStack v4 does not provide a join-server endpoint.

[pemsy]

Which join servers can I connect to?
Or maybe you are able to add this functionality for an additional fee?

[brocaar]

In general, you can connect to any external join-server that implements the join-server API as specified by the LoRaWAN Backend Specs.

Please note that using a join-server is not mandatory. If you configure the AppKey in ChirpStack (after adding the device), then ChirpStack will handle the join-request without the need of an external join-server.