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scartill avatar scartill commented on August 18, 2024 1

For Version 1.0 case (mac_version = 0 in config) you need:

ABP case:

  • Device EUI (eui in config, Device EUI in Chirpstack)
  • Device address (address in config, Device address in Chirpstack)
  • NwkSEncKey (network_session_encription_key in config, Network session key in Chirpstack)
  • AppSKey (application_session_key in config, Application session key in Chirpstack)

OTAA case:

  • Device EUI (eui in config, Device EUI in Chirpstack)
  • NwkKey (nwk_key in config, Application key in Chirpstack)

You can take a look here: https://github.com/iegomez/lds/blob/master/device.go#L46

Marshaller is all about application payload, it is not involved in ABP/OTAA processes.

Please feel free to ask futher questions (or just close the issue).

Hope this helps

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4br3mm0rd avatar 4br3mm0rd commented on August 18, 2024

Thank you very much for your answer, I've been having a hard time with this for a few weeks now...

I have tried to set it on a single machine (all the servers on one machine, as chirpstack's starter guide suggests) so that I'm not supposed to face any configuration issues on the server-side theoretically, trying both OTAA and ABP (with your suggested parameters - and the other parameters with dummy values, because otherwise, it crashes), but I'm still facing the same issue:

  • I am able to send a join request (it logs: join sent, and the message appears in mosquitto)
  • I do not get any response from the servers...

Here is a screenshot of the logs:
image

Thank you very much for your help

PS: my App and Network servers seem to be working ok (they are actually communicating with each other regularly) - nothing is logged by any of the servers when I send the join request.

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scartill avatar scartill commented on August 18, 2024

I've recently a bunch of issues in the master branch. Could you please retry with version from #16 pull request?

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4br3mm0rd avatar 4br3mm0rd commented on August 18, 2024

I just tried with this pull request and the result is the same: the message appears on the mosquitto_sub command, but the network server and application server don't react (no response, no log)

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scartill avatar scartill commented on August 18, 2024

Could you please provide your configuration files for lds and chirpstack server components? I'll try to reproduce

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4br3mm0rd avatar 4br3mm0rd commented on August 18, 2024

Sure,
For LDS (using ABP):

encoded_type = []
log_level = ""

[mqtt]
  server = "localhost:1883"
  user = ""
  password = ""
  downlink_topic = "gateway/abababababababab/event"
  uplink_topic = "gateway/abababababababab/command"

[forwarder]
  nserver = ""
  nsport = ""

[band]
  name = "US_902_928"

[device]
  eui = "1111111111111111"
  address = "22222222"
  network_session_encription_key = "33333333333333333333333333333333"
  serving_network_session_integrity_key = "00000000000000000000000000000001"
  forwarding_network_session_integrity_key = "00000000000000000000000000000001"
  application_session_key = "44444444444444444444444444444444"
  marshaler = "json"
  nwk_key = "00000000000000000000000000000001"
  app_key = "00000000000000000000000000000001"
  join_eui = "0000000000000001"
  mac_version = 0
  profile = "ABP"
  joined = false
  skip_fcnt_check = false

[gateway]
  mac = "abababababababab"
  bridge_version = ""

[data_rate]
  bandwith = 125
  spread_factor = 10
  bit_rate = 0

[rx_info]
  channel = 0
  code_rate = ""
  crc_status = 1
  frequency = 916800000
  lora_snr = 7.0
  rf_chain = 1
  rssi = -57

[raw_payload]
  payload = ""
  use_raw = false
  script = "\n// Encode encodes the given object into an array of bytes.\n//  - fPort contains the LoRaWAN fPort number\n//  - obj is an object, e.g. {\"temperature\": 22.5}\n// The function must return an array of bytes, e.g. [225, 230, 255, 0]\nfunction Encode(fPort, obj) {\n\treturn [];\n}\n"
  use_encoder = false
  max_exec_time = 100
  js_object = ""
  fport = 0

[redis]
  addr = ""
  password = ""
  db = 0

[window]
  width = 1200
  height = 1000

[provisioner]
  hostname = ""
  username = ""
  password = ""
  path = ""
  Token = ""

For LDS (OTAA):

encoded_type = []
log_level = ""

[mqtt]
  server = "localhost:1883"
  user = ""
  password = ""
  downlink_topic = "gateway/abababababababab/event"
  uplink_topic = "gateway/abababababababab/command"

[forwarder]
  nserver = ""
  nsport = ""

[band]
  name = "US_902_928"

[device]
  eui = "2222222222222222"
  address = "00000001"
  network_session_encription_key = "00000000000000000000000000000001"
  serving_network_session_integrity_key = "00000000000000000000000000000001"
  forwarding_network_session_integrity_key = "00000000000000000000000000000001"
  application_session_key = "00000000000000000000000000000001"
  marshaler = "json"
  nwk_key = "00000000000000010000000000000001"
  app_key = "00000000000000010000000000000001"
  join_eui = "0000000000000002"
  mac_version = 0
  profile = "OTAA"
  joined = false
  skip_fcnt_check = false

[gateway]
  mac = "abababababababab"
  bridge_version = ""

[data_rate]
  bandwith = 125
  spread_factor = 7
  bit_rate = 0

[rx_info]
  channel = 0
  code_rate = ""
  crc_status = 0
  frequency = 916800000
  lora_snr = 7.0
  rf_chain = 1
  rssi = -57

[raw_payload]
  payload = ""
  use_raw = false
  script = "\n// Encode encodes the given object into an array of bytes.\n//  - fPort contains the LoRaWAN fPort number\n//  - obj is an object, e.g. {\"temperature\": 22.5}\n// The function must return an array of bytes, e.g. [225, 230, 255, 0]\nfunction Encode(fPort, obj) {\n\treturn [];\n}\n"
  use_encoder = false
  max_exec_time = 100
  js_object = ""
  fport = 0

[redis]
  addr = ""
  password = ""
  db = 0

[window]
  width = 1200
  height = 1000

[provisioner]
  hostname = ""
  username = ""
  password = ""
  path = ""
  Token = ""

For the network server (it's the configuration file located in /etc/chirpstack-network-server/chirpstack-network-server-us-us915.toml with the updated password for postgres):

[postgresql]
dsn="postgres://chirpstack_ns:********@localhost/chirpstack_ns?sslmode=disable"

[redis]
url="redis://localhost:6379"

[network_server]
net_id="000000"

  [network_server.band]
  name="US915"
    enabled_uplink_channels=[0, 1, 2, 3, 4, 5, 6, 7]

    [network_server.network_settings.class_b]
    ping_slot_dr=0
    ping_slot_frequency=0

  [network_server.api]
  bind="0.0.0.0:8000"

  [network_server.gateway.backend]
  type="mqtt"

    [network_server.gateway.backend.mqtt]
    event_topic="gateway/+/event/+"
    command_topic_template="gateway/{{ .GatewayID }}/command/{{ .CommandType }}"
    server="tcp://localhost:1883"
    username=""
    password=""


[metrics]
timezone="Local"

[join_server]

  [join_server.default]
  server="http://localhost:8003"

Application Server (it's the configuration suggested in the "getting started" guide of chirpstack:

[general]
log_level=4

[postgresql]
dsn="postgres://chirpstack_as:********@localhost/chirpstack_as?sslmode=disable"

  [application_server.external_api]
  jwt_secret="verysecret"

Thank you very much for your help!

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scartill avatar scartill commented on August 18, 2024

Hi @4br3mm0rd

You have multiple issues with LDS config:

  • Your uplink and downlink topics are confused, you better keep them to default
  • If you do not use encoder (use_encoder=false and encoded_type=[]), payload shouldn't be empty (payload="").

Try this config:

encoded_type = []
log_level = "debug"

[mqtt]
  server = "localhost:1883"
  user = ""
  password = ""
  # Uplink topic. %s will be replaced with the gateway mac.
  uplink_topic="gateway/%s/event/up"
  # Downlink topic. %s will be replaced with the gateway mac.
  downlink_topic="gateway/%s/command/down"

[forwarder]
  nserver = ""
  nsport = ""

[band]
  name = "US_902_928"

[device]
  eui = "1111111111111111"
  address = "22222222"
  network_session_encription_key = "33333333333333333333333333333333"
  serving_network_session_integrity_key = "00000000000000000000000000000001"
  forwarding_network_session_integrity_key = "00000000000000000000000000000001"
  application_session_key = "44444444444444444444444444444444"
  marshaler = "json"
  nwk_key = "00000000000000000000000000000001"
  app_key = "00000000000000000000000000000001"
  join_eui = "0000000000000001"
  mac_version = 0
  profile = "ABP"
  joined = false
  skip_fcnt_check = false

[gateway]
  mac = "abababababababab"
  bridge_version = ""

[data_rate]
  bandwith = 125
  spread_factor = 10
  bit_rate = 0

[rx_info]
  channel = 0
  code_rate = ""
  crc_status = 1
  frequency = 916800000
  lora_snr = 7.0
  rf_chain = 1
  rssi = -57

[raw_payload]
  payload = "ff00"
  use_raw = false
  script = "\n// Encode encodes the given object into an array of bytes.\n//  - fPort contains the LoRaWAN fPort number\n//  - obj is an object, e.g. {\"temperature\": 22.5}\n// The function must return an array of bytes, e.g. [225, 230, 255, 0]\nfunction Encode(fPort, obj) {\n\treturn [\n      obj[\"Flags\"],\n      obj[\"Battery\"],\n      obj[\"Light\"],\n    ];\n}\n"
  use_encoder = false
  max_exec_time = 500
  js_object = "{\n \"Flags\": 0,\n \"Battery\": 65,\n \"Light\": 54\n}"
  fport = 2


[redis]
  addr = ""
  password = ""
  db = 0

[window]
  width = 1200
  height = 1000

[provisioner]
  hostname = ""
  username = ""
  password = ""
  path = ""
  Token = ""

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