Packet #2941847

Database ID:	2941847
Mesh Packet ID:	`0x7afd00e2` Used for correlation across gateways
Timestamp:	2026-03-15 03:10:06 UTC
From Node:	Mag mobile 🇵🇹 🚚 24h7/7 (Mag)
To Node:	!6c982190 (2190)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	JPb2-CL-8 (JPb2)
Channel:	LongFast
RSSI:	-120 dBm
SNR:	-12.75 dBm
Hop Info:	1/2 hops Start: 2, Limit: 1

Long Name:	Mag mobile 🇵🇹 🚚 24h7/7
Short Name:	Mag
Node ID:	!3a0124d8
MAC Address:	18Y6ASTY
Hardware:	T_ECHO

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:	93 bytes
Gateway:	!aeed0b70
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	1 / 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`	`!aeed0b70` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (93 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`973153496` Source node ID	uint32
`to`	`1821909392` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`93` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`2` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-120.0` dBm Signal strength at gateway	int32
`rx_snr`	`-12.75` dB Signal quality at gateway	float
`rx_time`	`1773544205` 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`	`200` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1773544206.5160246` 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 (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!aeed0b70`
Signal Metrics:	RSSI: -120.0 dBm SNR: -12.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	93 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!3a0124d8", "long_name": "Mag mobile 🇵🇹 🚚 24h7/7", "short_name": "Mag", "macaddr": "18Y6ASTY", "hw_model": "T_ECHO" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!aeed0b70", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 973153496, "to": 1821909392, "id": 2063401186, "rx_time": 1773544205, "rx_snr": -12.75, "rx_rssi": -120, "hop_limit": 1, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 200, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213361303132346438121f4d6167206d6f62696c6520f09f87b5f09f87b920f09f9a9a20323468372f371a034d61672206d7c63a0124d828074220ccd7b1dc996662ffeeef4cb9692a8b52261c94235b09209f3254c3da28a00910", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!3a0124d8", "long_name": "Mag mobile 🇵🇹 🚚 24h7/7", "short_name": "Mag", "macaddr": "18Y6ASTY", "hw_model": "T_ECHO", "public_key": "zNex3JlmYv/u70y5aSqLUiYclCNbCSCfMlTD2iigCRA=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (93 bytes)

0a09213361303132346438121f4d6167206d6f62696c6520f09f87b5f09f87b920f09f9a9a20323468372f371a034d61672206d7c63a0124d828074220ccd7b1dc996662ffeeef4cb9692a8b52261c94235b09209f3254c3da28a00910

Hex Analysis:

Size:	93 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 #2941847 Success

Packet Information

Payload Data

Decoded Data: