Packet #10471701

Database ID:	10471701
Mesh Packet ID:	`0x4859050f` Used for correlation across gateways
Timestamp:	2025-09-13 21:37:03 UTC
From Node:	🇪🇦 EA5URM 📟⚡🌐 (NOD3)
To Node:	!433bca0c (ca0c)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	NKT-Cartagena433🏠📡 (CT43)
Channel:	LongFast
RSSI:	-122 dBm
SNR:	-18.75 dBm
Hop Info:	2/7 hops Start: 7, Limit: 5

Long Name:	🇪🇦 EA5URM 📟⚡🌐
Short Name:	NOD3
Node ID:	!12b11280
MAC Address:	AEsSsRKA
Hardware:	TLORA_V2_1_1P6

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:	92 bytes
Gateway:	!ea243708
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	2 / 7

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`	`!ea243708` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (92 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`313594496` Source node ID	uint32
`to`	`1127991820` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`92` bytes	size
`hop_limit`	`5` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-122.0` dBm Signal strength at gateway	int32
`rx_snr`	`-18.75` dB Signal quality at gateway	float
`rx_time`	`1757799421` 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`	`244` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1757799423.0364232` 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 (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!ea243708`
Signal Metrics:	RSSI: -122.0 dBm SNR: -18.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	92 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!12b11280", "long_name": "🇪🇦 EA5URM 📟⚡🌐", "short_name": "NOD3", "macaddr": "AEsSsRKA", "hw_model": "TLORA_V2_1_1P6" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!ea243708", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 313594496, "to": 1127991820, "id": 1213793551, "rx_time": 1757799421, "rx_snr": -18.75, "rx_rssi": -122, "hop_limit": 5, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 244, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213132623131323830121bf09f87aaf09f87a62045413555524d20f09f939fe29aa1f09f8c901a044e4f44332206004b12b1128028034220cca88544352c5c3e66228911116f26ba757a7b6100acbca3ebf81c363ada8d1f4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!12b11280", "long_name": "🇪🇦 EA5URM 📟⚡🌐", "short_name": "NOD3", "macaddr": "AEsSsRKA", "hw_model": "TLORA_V2_1_1P6", "public_key": "zKiFRDUsXD5mIokREW8munV6e2EArLyj6/gcNjrajR8=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (92 bytes)

0a09213132623131323830121bf09f87aaf09f87a62045413555524d20f09f939fe29aa1f09f8c901a044e4f44332206004b12b1128028034220cca88544352c5c3e66228911116f26ba757a7b6100acbca3ebf81c363ada8d1f4800

Hex Analysis:

Size:	92 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 #10471701 Success

Packet Information

Payload Data

Decoded Data: