Packet #259971

Database ID:	259971
Mesh Packet ID:	`0x142d2048` Used for correlation across gateways
Timestamp:	2026-08-18 00:24:02 Саратов/Балаково (UTC+4)
From Node:	PointGreen (PNGR)
To Node:	Alerton (ALRT)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	chem (721c)
Channel:	LongFast
RSSI:	-70 dBm
SNR:	7.25 dBm
Hop Info:	7/7 hops Start: 7, Limit: 0

Long Name:	PointGreen
Short Name:	PNGR
Node ID:	!2a9aaff5
MAC Address:	9O0qmq/1
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:	75 bytes
Gateway:	!9e78721c
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	7 / 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`	`!9e78721c` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (75 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`714780661` Source node ID	uint32
`to`	`4133619364` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`75` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`7` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-70.0` dBm Signal strength at gateway	int32
`rx_snr`	`7.25` dB Signal quality at gateway	float
`rx_time`	`1786998242` 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`	`2` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`80` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`2026-08-17 23:24:02.772831+03:00` 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 (7 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!9e78721c`
Signal Metrics:	RSSI: -70.0 dBm SNR: 7.25 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	75 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!2a9aaff5", "long_name": "PointGreen", "short_name": "PNGR", "macaddr": "9O0qmq/1", "hw_model": "T_ECHO" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!9e78721c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 714780661, "to": 4133619364, "id": 338501704, "rx_time": 1786998242, "rx_snr": 7.25, "rx_rssi": -70, "hop_limit": 0, "hop_start": 7, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": 2, "pki_encrypted": false, "next_hop": 0, "relay_node": 80, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213261396161666635120a506f696e74477265656e1a04504e47522206f4ed2a9aaff52807422044dbefdfe134ac65ccf09e8edfa9eadd253f50884bc922a4b612c831bf6da34a4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!2a9aaff5", "long_name": "PointGreen", "short_name": "PNGR", "macaddr": "9O0qmq/1", "hw_model": "T_ECHO", "public_key": "RNvv3+E0rGXM8J6O36nq3SU/UIhLySKkthLIMb9to0o=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (75 bytes)

0a09213261396161666635120a506f696e74477265656e1a04504e47522206f4ed2a9aaff52807422044dbefdfe134ac65ccf09e8edfa9eadd253f50884bc922a4b612c831bf6da34a4800

Hex Analysis:

Size:	75 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 #259971 Success

Packet Information

Payload Data

Decoded Data: