Packet #15890708

Database ID:	15890708
Mesh Packet ID:	`0x53795ec1` Used for correlation across gateways
Timestamp:	2026-04-17 14:20:31 UTC
From Node:	LDO 7c5b (7c5b)
To Node:	Raf (93d0)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	ZA_MKAD_22_868_1 (8681)
Channel:	LongFast
RSSI:	-143 dBm
SNR:	-20.0 dBm
Hop Info:	5/5 hops Start: 5, Limit: 0

Long Name:	Meshtastic 7c5b
Short Name:	7c5b
Node ID:	!023b7c5b
MAC Address:	7jICO3xb
Hardware:	HELTEC_MESH_POCKET

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:	80 bytes
Gateway:	!bba83350
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	5 / 5

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`	`!bba83350` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (80 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`37452891` Source node ID	uint32
`to`	`2661454800` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`80` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`5` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-143.0` dBm Signal strength at gateway	int32
`rx_snr`	`-20.00` dB Signal quality at gateway	float
`rx_time`	`1776424830` 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`	`12` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1776424831.4306207` 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 (5 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!bba83350`
Signal Metrics:	RSSI: -143.0 dBm SNR: -20.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	80 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!023b7c5b", "long_name": "Meshtastic 7c5b", "short_name": "7c5b", "macaddr": "7jICO3xb", "hw_model": "HELTEC_MESH_POCKET" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!bba83350", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 37452891, "to": 2661454800, "id": 1400463041, "rx_time": 1776424830, "rx_snr": -20.0, "rx_rssi": -143, "hop_limit": 0, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 12, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213032336237633562120f4d65736874617374696320376335621a04376335622206ee32023b7c5b285e422024e1e72ae31e7fd510bce9dc2b27de6be0d394c01bc0fe82f92d311785fa6c054800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!023b7c5b", "long_name": "Meshtastic 7c5b", "short_name": "7c5b", "macaddr": "7jICO3xb", "hw_model": "HELTEC_MESH_POCKET", "public_key": "JOHnKuMef9UQvOncKyfea+DTlMAbwP6C+S0xF4X6bAU=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (80 bytes)

0a09213032336237633562120f4d65736874617374696320376335621a04376335622206ee32023b7c5b285e422024e1e72ae31e7fd510bce9dc2b27de6be0d394c01bc0fe82f92d311785fa6c054800

Hex Analysis:

Size:	80 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 #15890708 Success

Packet Information

Payload Data

Decoded Data: