Packet #3135656

Database ID:	3135656
Mesh Packet ID:	`0xb21fb014` Used for correlation across gateways
Timestamp:	2026-05-04 23:15:35 UTC
From Node:	🦉MMB (MMB)
To Node:	mesh.qrp.ro (ZGR2)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	🦉MMD (MMD)
Channel:	LongFast
RSSI:	-26 dBm
SNR:	6.0 dBm
Hop Info:	0/2 hops Start: 2, Limit: 2
Relay Node:	`d5` MMB Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	🦉MMB
Short Name:	MMB
Node ID:	!e26c3ed5
MAC Address:	yJzibD7V
Hardware:	TRACKER_T1000_E

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:	71 bytes
Gateway:	!0406e4bc
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 2

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!0406e4bc` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (71 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3798744789` Source node ID	uint32
`to`	`2661114168` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`71` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`2` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-26.0` dBm Signal strength at gateway	int32
`rx_snr`	`6.00` dB Signal quality at gateway	float
`rx_time`	`1777935838` 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`	`213` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1777936535.1667364` 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
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

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

MQTT-Specific Fields

Gateway ID:	`!0406e4bc`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -26.0 dBm SNR: 6.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	71 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!e26c3ed5", "long_name": "🦉MMB", "short_name": "MMB", "macaddr": "yJzibD7V", "hw_model": "TRACKER_T1000_E" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!0406e4bc", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3798744789, "to": 2661114168, "id": 2988421140, "rx_time": 1777935838, "rx_snr": 6.0, "rx_rssi": -26, "hop_limit": 2, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 213, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092165323663336564351207f09fa6894d4d421a034d4d422206c89ce26c3ed52847422055e75bda6310d0f1a8a3ecb9fe15d3ceeca8b06984ec17ee21210d1107f050124800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!e26c3ed5", "long_name": "🦉MMB", "short_name": "MMB", "macaddr": "yJzibD7V", "hw_model": "TRACKER_T1000_E", "public_key": "Vedb2mMQ0PGoo+y5/hXTzuyosGmE7BfuISENEQfwUBI=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (71 bytes)

0a092165323663336564351207f09fa6894d4d421a034d4d422206c89ce26c3ed52847422055e75bda6310d0f1a8a3ecb9fe15d3ceeca8b06984ec17ee21210d1107f050124800

Hex Analysis:

Size:	71 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 #3135656 Success

Packet Information

Payload Data

Decoded Data: