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chirpstack-tutorial/doc/1-gateway/1-gateway-bridge.md

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Gateway Bridge

Get the ChirpStack GPG key:

# https://superuser.com/a/1773782
gpg --keyserver hkps://keyserver.ubuntu.com --recv-keys 1CE2AFD36DBCCA00 && \
gpg --export 1CE2AFD36DBCCA00 | sudo tee /etc/apt/trusted.gpg.d/chirpstack.gpg >/dev/null && \
gpg --batch --yes --delete-keys 1CE2AFD36DBCCA00

This avoids using the deprecated apt-key command listed on the ChirpStack site.

Add the source at:

echo "deb https://artifacts.chirpstack.io/packages/4.x/deb stable main" | sudo tee /etc/apt/sources.list.d/chirpstack.list

Update and install:

sudo apt update
sudo apt install chirpstack-gateway-bridge

See the following message:

---------------------------------------------------------------------------------
The configuration file is located at:
 /etc/chirpstack-gateway-bridge/chirpstack-gateway-bridge.toml

Some helpful commands for chirpstack-gateway-bridge:

Start:
 $ sudo systemctl start chirpstack-gateway-bridge

Restart:
 $ sudo systemctl restart chirpstack-gateway-bridge

Stop:
 $ sudo systemctl stop chirpstack-gateway-bridge

Display logs:
 $ sudo journalctl -f -n 100 -u chirpstack-gateway-bridge
---------------------------------------------------------------------------------

Edit /etc/chirpstack-gateway-bridge/chirpstack-gateway-bridge.toml to match the port that the packet forwarder is using (1730 instead of 1700):

upd_bind = "0.0.0.0:1730"

Add/change some values:

event_topic_template="us915_1/gateway/{{ .GatewayID }}/event/{{ .EventType }}"
command_topic_template="us915_1/gateway/{{ .GatewayID }}/command/#"

Gateway Bridge Config

Create /etc/chirpstack-gateway-bridge/certs folder and copy certs in. Make everything owned by gatewaybridge. Set permission to 640.

Modify the config, ref: https://www.chirpstack.io/docs/chirpstack-gateway-bridge/configuration.html

Don't forget to change tcp to ssl in the server list.

Check journalctl on both the bridge and Mosquitto to see that the connection is established.

Be sure to set the Gateway ID in both the chirpstack-gateway-bridge and packet-forwarder configs (though this doesn't seem to matter? Need to experiment). Also be sure the UDP port matches between the two.