Packet #2095925

Database ID:	2095925
Mesh Packet ID:	`0xa0723f19` Used for correlation across gateways
Timestamp:	2025-08-12 10:50:41 UTC
From Node:	MITHRIL (MTRL)
To Node:	STRIDER ONE (STR1)
Success:	Processed
Protocol:	POSITION_APP Port: 3

Gateway:	STRIDER ONE (STR1)
Channel:	LongFast
RSSI:	-110 dBm
SNR:	-5.0 dBm
Hop Info:	2/2 hops Start: 2, Limit: 0

Latitude:	52.323942°
Longitude:	5.138022°
Altitude:	-40 m
Satellites:	4
Precision:	11 bits

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:	44 bytes
Gateway:	!ba0cb1a4
Channel:	LongFast
Payload Type:	POSITION_APP
Hop Count:	2 / 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
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!ba0cb1a4` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (44 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1130038932` Source node ID	uint32
`to`	`3121394084` Target node ID	uint32
`decoded.portnum`	`3` POSITION_APP	enum
`decoded.payload_length`	`44` 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`	`-110.0` dBm Signal strength at gateway	int32
`rx_snr`	`-5.00` dB Signal quality at gateway	float
`rx_time`	`1754988639` 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`	`164` Next hop node ID	uint32
`relay_node`	`148` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1754988641.2439842` 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
✓ Reduced position precision: ~11700.0m accuracy

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:	`!ba0cb1a4`
Position Precision:	11 bits (~11700.0m accuracy)
Position precision meters:	`11700.0`
Signal Metrics:	RSSI: -110.0 dBm SNR: -5.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	POSITION_APP
Size:	44 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "latitude": 52.3239424, "longitude": 5.1380224, "altitude": -40, "sats_in_view": 4, "precision_bits": 11 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!ba0cb1a4", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1130038932, "to": 3121394084, "id": 2691841817, "rx_time": 1754988639, "rx_snr": -5.0, "rx_rssi": -110, "hop_limit": 0, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 164, "relay_node": 148, "tx_after": 0, "decoded": { "portnum": 3, "payload": "0d0000301f150000100318d8ffffffffffffffff01255d009b682802589b0378058001f8c15a980104b8010b", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "latitude_i": 523239424, "longitude_i": 51380224, "altitude": -40, "time": 1754988637, "location_source": "LOC_INTERNAL", "PDOP": 411, "ground_speed": 5, "ground_track": 1483000, "sats_in_view": 4, "precision_bits": 11, "type": "protobuf", "portnum": "POSITION_APP", "message_class": "Position" } } } }

Raw Packet Data (44 bytes)

0d0000301f150000100318d8ffffffffffffffff01255d009b682802589b0378058001f8c15a980104b8010b

Hex Analysis:

Size:	44 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 #2095925 Success

Packet Information

Payload Data

Decoded Data: