Packet #117289

Database ID:	117289
Mesh Packet ID:	`0xc7d2d2ea` Used for correlation across gateways
Timestamp:	2026-04-18 03:42:01 Саратов/Балаково (UTC+4)
From Node:	R4CHK🇷🇺 (64RU)
To Node:	!46982ecc (2ecc)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	chem (721c)
Channel:	LongFast
RSSI:	-95 dBm
SNR:	4.5 dBm
Hop Info:	3/3 hops Start: 3, Limit: 0

Long Name:	R4CHK🇷🇺
Short Name:	64RU
Node ID:	!dad8fe44
MAC Address:	gPPa2P5E
Hardware:	TBEAM

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:	78 bytes
Gateway:	!9e78721c
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	3 / 3

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` (78 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3671653956` Source node ID	uint32
`to`	`1184378572` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`78` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-95.0` dBm Signal strength at gateway	int32
`rx_snr`	`4.50` dB Signal quality at gateway	float
`rx_time`	`1776469320` 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`	`248` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`2026-04-18 02:42:01.693922+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 (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!9e78721c`
Signal Metrics:	RSSI: -95.0 dBm SNR: 4.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	78 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!dad8fe44", "long_name": "R4CHK🇷🇺", "short_name": "64RU", "macaddr": "gPPa2P5E", "hw_model": "TBEAM" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!9e78721c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3671653956, "to": 1184378572, "id": 3352482538, "rx_time": 1776469320, "rx_snr": 4.5, "rx_rssi": -95, "hop_limit": 0, "hop_start": 3, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": 2, "pki_encrypted": false, "next_hop": 0, "relay_node": 248, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216461643866653434120d523443484bf09f87b7f09f87ba1a0436345255220680f3dad8fe44280442200a6e8302ec157c66698619e543918333ee5e53d3e52ca43baf47b8aef134cc0d4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!dad8fe44", "long_name": "R4CHK🇷🇺", "short_name": "64RU", "macaddr": "gPPa2P5E", "hw_model": "TBEAM", "public_key": "Cm6DAuwVfGZphhnlQ5GDM+5eU9PlLKQ7r0e4rvE0zA0=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (78 bytes)

0a09216461643866653434120d523443484bf09f87b7f09f87ba1a0436345255220680f3dad8fe44280442200a6e8302ec157c66698619e543918333ee5e53d3e52ca43baf47b8aef134cc0d4800

Hex Analysis:

Size:	78 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 #117289 Success

Packet Information

Payload Data

Decoded Data: