Packet #3077706

Database ID:	3077706
Mesh Packet ID:	`0x57379603` Used for correlation across gateways
Timestamp:	2025-08-19 10:16:01 UTC
From Node:	🦝 DarkJavi@Roadtrip (DJ)
To Node:	PC4H 🏠🌐 (PC4H)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Octi Den 🐙🏡 (OctD)
Channel:	LongFast
RSSI:	-120 dBm
SNR:	-15.75 dBm
Hop Info:	3/3 hops Start: 3, Limit: 0

Long Name:	🦝 DarkJavi@Roadtrip
Short Name:	DJ
Node ID:	!433d67b0
MAC Address:	SMpDPWew
Hardware:	HELTEC_V3

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:	87 bytes
Gateway:	!433de46c
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	3 / 3

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`	`!433de46c` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (87 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1128097712` Source node ID	uint32
`to`	`3664082356` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`87` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-120.0` dBm Signal strength at gateway	int32
`rx_snr`	`-15.75` dB Signal quality at gateway	float
`rx_time`	`1755591360` 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`	`70` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1755591361.8924248` 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 (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!433de46c`
Signal Metrics:	RSSI: -120.0 dBm SNR: -15.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	87 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!433d67b0", "long_name": "🦝 DarkJavi@Roadtrip", "short_name": "DJ", "macaddr": "SMpDPWew", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!433de46c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1128097712, "to": 3664082356, "id": 1463260675, "rx_time": 1755591360, "rx_snr": -15.75, "rx_rssi": -120, "hop_limit": 0, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 70, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092134333364363762301216f09fa69d204461726b4a61766940526f6164747269701a02444a220648ca433d67b0282b38014220823ee1795e52cfd3c26ff59a5a403a945db6c469058790eece37b5375209e93c4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!433d67b0", "long_name": "🦝 DarkJavi@Roadtrip", "short_name": "DJ", "macaddr": "SMpDPWew", "hw_model": "HELTEC_V3", "role": "CLIENT_MUTE", "public_key": "gj7heV5Sz9PCb/WaWkA6lF22xGkFh5Duzje1N1IJ6Tw=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (87 bytes)

0a092134333364363762301216f09fa69d204461726b4a61766940526f6164747269701a02444a220648ca433d67b0282b38014220823ee1795e52cfd3c26ff59a5a403a945db6c469058790eece37b5375209e93c4800

Hex Analysis:

Size:	87 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 #3077706 Success

Packet Information

Payload Data

Decoded Data: