Packet #2119935

Database ID:	2119935
Mesh Packet ID:	`0xc60ebc0a` Used for correlation across gateways
Timestamp:	2025-06-28 10:58:40 UTC
From Node:	📡 Sierra del Perdon 🔇 (🙏)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	L0K3 (dab8)
Channel:	LongFast
RSSI:	-102 dBm
SNR:	4.5 dBm
Hop Info:	1/5 hops Start: 5, Limit: 4

Long Name:	📡 Sierra del Perdon 🔇
Short Name:	🙏
Node ID:	!bb30e7d7
MAC Address:	4067MOfX
Hardware:	NRF52_PROMICRO_DIY

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:	94 bytes
Gateway:	!a0ccdab8
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	1 / 5

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!a0ccdab8` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (94 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3140544471` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`94` bytes	size
`hop_limit`	`4` Remaining hops allowed	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-102.0` dBm Signal strength at gateway	int32
`rx_snr`	`4.50` dB Signal quality at gateway	float
`rx_time`	`1751108319` 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`	`86` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1751108320.9218042` 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)
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!a0ccdab8`
Signal Metrics:	RSSI: -102.0 dBm SNR: 4.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	94 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!bb30e7d7", "long_name": "📡 Sierra del Perdon 🔇", "short_name": "🙏", "macaddr": "4067MOfX", "hw_model": "NRF52_PROMICRO_DIY" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!a0ccdab8", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3140544471, "to": 4294967295, "id": 3322854410, "rx_time": 1751108319, "rx_snr": 4.5, "rx_rssi": -102, "hop_limit": 4, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 86, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216262333065376437121bf09f93a1205369657272612064656c20506572646f6e20f09f94871a04f09f998f2206e34ebb30e7d7283f38024220196d7e0b9d1e2140df898a90f88062fee545b5363fbf6f8c562d977827c4b7084801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!bb30e7d7", "long_name": "📡 Sierra del Perdon 🔇", "short_name": "🙏", "macaddr": "4067MOfX", "hw_model": "NRF52_PROMICRO_DIY", "role": "ROUTER", "public_key": "GW1+C50eIUDfiYqQ+IBi/uVFtTY/v2+MVi2XeCfEtwg=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (94 bytes)

0a09216262333065376437121bf09f93a1205369657272612064656c20506572646f6e20f09f94871a04f09f998f2206e34ebb30e7d7283f38024220196d7e0b9d1e2140df898a90f88062fee545b5363fbf6f8c562d977827c4b7084801

Hex Analysis:

Size:	94 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 #2119935 Success

Packet Information

Payload Data

Decoded Data: