Packet #3394722

Database ID:	3394722
Mesh Packet ID:	`0xff0c1fa2` Used for correlation across gateways
Timestamp:	2025-07-11 11:29:17 UTC
From Node:	jaba-02 (jb-2)
To Node:	Meshtastic a0c1 (a0c1)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Carlos_BVD_T1000E_d321 (2BVD)
Channel:	LongFast
RSSI:	-106 dBm
SNR:	-19.75 dBm
Hop Info:	1/4 hops Start: 4, Limit: 3

Long Name:	jaba-02
Short Name:	jb-2
Node ID:	!433bbbf0
MAC Address:	SMpDO7vw
Hardware:	HELTEC_V3

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:	70 bytes
Gateway:	!9769d321
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	1 / 4

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`	`!9769d321` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (70 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1127988208` Source node ID	uint32
`to`	`3450708161` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`70` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-106.0` dBm Signal strength at gateway	int32
`rx_snr`	`-19.75` dB Signal quality at gateway	float
`rx_time`	`1752231910` 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`	`204` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1752233357.7943282` 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:	`!9769d321`
Signal Metrics:	RSSI: -106.0 dBm SNR: -19.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	70 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!433bbbf0", "long_name": "jaba-02", "short_name": "jb-2", "macaddr": "SMpDO7vw", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!9769d321", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1127988208, "to": 3450708161, "id": 4278984610, "rx_time": 1752231910, "rx_snr": -19.75, "rx_rssi": -106, "hop_limit": 3, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 204, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921343333626262663012076a6162612d30321a046a622d32220648ca433bbbf0282b4220e7c098a31c219a60eca5f4f23c6c6c73385ff6434444ca2248e9777a6c8c7a27", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!433bbbf0", "long_name": "jaba-02", "short_name": "jb-2", "macaddr": "SMpDO7vw", "hw_model": "HELTEC_V3", "public_key": "58CYoxwhmmDspfTyPGxsczhf9kNERMoiSOl3emyMeic=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (70 bytes)

0a0921343333626262663012076a6162612d30321a046a622d32220648ca433bbbf0282b4220e7c098a31c219a60eca5f4f23c6c6c73385ff6434444ca2248e9777a6c8c7a27

Hex Analysis:

Size:	70 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 #3394722 Success

Packet Information

Payload Data

Decoded Data: