Packet #3305353

Database ID:	3305353
Mesh Packet ID:	`0xa133b513` Used for correlation across gateways
Timestamp:	2025-12-09 12:18:38 UTC
From Node:	JLY4 - Roosevelt Solar (JLY4)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	JLO - R1 Neo (JR1N)
Channel:	MediumSlow
RSSI:	-47 dBm
SNR:	8.75 dBm
Hop Info:	1/7 hops Start: 7, Limit: 6
Relay Node:	`52` JLO3 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	JLY4 - Roosevelt Solar
Short Name:	JLY4
Node ID:	!f08744b8
MAC Address:	35Xwh0S4
Hardware:	RAK4631

Raw Packet Analysis

Complete field breakdown and MQTT privacy/exposure analysis

Packet Structure

MQTT Packet Flow:
ServiceEnvelope (MQTT layer) → MeshPacket (Mesh layer) → Decoded Payload (Application data)

Total Size:	89 bytes
Gateway:	!efd5b5e5
Channel:	MediumSlow
Payload Type:	NODEINFO_APP
Hop Count:	1 / 7

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumSlow
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!efd5b5e5` Node ID format
`channel_id`	`MediumSlow`
`packet`	`MeshPacket` (89 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`4035396792` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`89` bytes	size
`hop_limit`	`6` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-47.0` dBm Signal strength at gateway	int32
`rx_snr`	`8.75` dB Signal quality at gateway	float
`rx_time`	`1765282853` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	Not set	enum
`delayed`	Not set	enum
`channel`	Not set	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`82` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1765282718.0711555` Unix timestamp	uint32

MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Broadcast

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumSlow
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!efd5b5e5`
Signal Metrics:	RSSI: -47.0 dBm SNR: 8.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	89 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!f08744b8", "long_name": "JLY4 - Roosevelt Solar", "short_name": "JLY4", "macaddr": "35Xwh0S4", "hw_model": "RAK4631" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!efd5b5e5", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 4035396792, "to": 4294967295, "id": 2704520467, "rx_time": 1765282853, "rx_snr": 8.75, "rx_rssi": -47, "hop_limit": 6, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 82, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921663038373434623812164a4c5934202d20526f6f736576656c7420536f6c61721a044a4c59342206df95f08744b82809380c42205dfa611c727a623abab81ce7c84a3ef629ec299627e692689867ed6085a2ca0a4801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!f08744b8", "long_name": "JLY4 - Roosevelt Solar", "short_name": "JLY4", "macaddr": "35Xwh0S4", "hw_model": "RAK4631", "role": "CLIENT_BASE", "public_key": "XfphHHJ6Yjq6uBznyEo+9insKZYn5pJomGftYIWiygo=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (89 bytes)

0a0921663038373434623812164a4c5934202d20526f6f736576656c7420536f6c61721a044a4c59342206df95f08744b82809380c42205dfa611c727a623abab81ce7c84a3ef629ec299627e692689867ed6085a2ca0a4801

Hex Analysis:

Size:	89 bytes
Format:	Protobuf (Protocol Buffers)
Encoding:	Binary with varint and length-delimited fields

This is the raw protobuf-encoded payload as received from MQTT. The structure follows the Meshtastic protobuf schema definitions.

Packet #3305353 Success

Packet Information

Payload Data

Decoded Data: