Packet #2782626

Database ID:	2782626
Mesh Packet ID:	`0xa8479f81` Used for correlation across gateways
Timestamp:	2025-07-04 11:26:14 UTC
From Node:	TDRPB-CL-868📡🌐 (TDRP)
To Node:	DRPM-CL-868📟🌐 (DRPM)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	EA4GMY 📡 (4GMY)
Channel:	LongFast
RSSI:	-125 dBm
SNR:	-15.75 dBm
Hop Info:	2/2 hops Start: 2, Limit: 0

Long Name:	TDRPB-CL-868📡🌐
Short Name:	TDRP
Node ID:	!6c73ec70
MAC Address:	oN1sc+xw
Hardware:	TBEAM

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:	85 bytes
Gateway:	!78d8c075
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	2 / 2

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 1 more...

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!78d8c075` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (85 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1819536496` Source node ID	uint32
`to`	`1014933831` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`85` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`2` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-125.0` dBm Signal strength at gateway	int32
`rx_snr`	`-15.75` dB Signal quality at gateway	float
`rx_time`	`1751627942` 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`	`11` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1751628374.0928526` Unix timestamp	uint32

MQTT Privacy & Exposure Analysis

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

Exposure Level: Direct Message

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
✓ Gateway node ID tracked

Exposure Risks:

⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!78d8c075`
Signal Metrics:	RSSI: -125.0 dBm SNR: -15.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	85 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!6c73ec70", "long_name": "TDRPB-CL-868📡🌐", "short_name": "TDRP", "macaddr": "oN1sc+xw", "hw_model": "TBEAM" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!78d8c075", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1819536496, "to": 1014933831, "id": 2823266177, "rx_time": 1751627942, "rx_snr": -15.75, "rx_rssi": -125, "hop_limit": 0, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 11, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213663373365633730121454445250422d434c2d383638f09f93a1f09f8c901a04544452502206a0dd6c73ec7028043801422017c74f841177843fdd8ed7d222ddd6750cc76ad94fad513376db3c8ba1e0f23c", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!6c73ec70", "long_name": "TDRPB-CL-868📡🌐", "short_name": "TDRP", "macaddr": "oN1sc+xw", "hw_model": "TBEAM", "role": "CLIENT_MUTE", "public_key": "F8dPhBF3hD/djtfSIt3WdQzHatlPrVEzdts8i6Hg8jw=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (85 bytes)

0a09213663373365633730121454445250422d434c2d383638f09f93a1f09f8c901a04544452502206a0dd6c73ec7028043801422017c74f841177843fdd8ed7d222ddd6750cc76ad94fad513376db3c8ba1e0f23c

Hex Analysis:

Size:	85 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 #2782626 Success

Packet Information

Payload Data

Decoded Data: