Packet #7825973

Database ID:	7825973
Mesh Packet ID:	`0x6a027c57` Used for correlation across gateways
Timestamp:	2025-08-24 06:23:08 UTC
From Node:	Bonsai (BS1)
To Node:	!a0ccd230 (d230)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	EA1FVQ (edc1)
Channel:	LongFast
RSSI:	-107 dBm
SNR:	-18.75 dBm
Hop Info:	0/4 hops Start: 4, Limit: 4

Long Name:	Bonsai
Short Name:	BS1
Node ID:	!ba61d118
MAC Address:	ECC6YdEY
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:	71 bytes
Gateway:	!e4a8034d
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 4

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!e4a8034d` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (71 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3126972696` Source node ID	uint32
`to`	`2697777712` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`71` bytes	size
`hop_limit`	`4` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-107.0` dBm Signal strength at gateway	int32
`rx_snr`	`-18.75` dB Signal quality at gateway	float
`rx_time`	`1756016597` 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`	`24` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1756016588.7311819` 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
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!e4a8034d`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -107.0 dBm SNR: -18.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	71 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!ba61d118", "long_name": "Bonsai ", "short_name": "BS1", "macaddr": "ECC6YdEY", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!e4a8034d", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3126972696, "to": 2697777712, "id": 1778547799, "rx_time": 1756016597, "rx_snr": -18.75, "rx_rssi": -107, "hop_limit": 4, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 24, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092162613631643131381207426f6e736169201a0342533122061020ba61d118282b422020fe0542d3baee6fa7780a975a4a1f929f3b93741de1cb63a8eca218a83f56714800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!ba61d118", "long_name": "Bonsai ", "short_name": "BS1", "macaddr": "ECC6YdEY", "hw_model": "HELTEC_V3", "public_key": "IP4FQtO67m+neAqXWkofkp87k3Qd4ctjqOyiGKg/VnE=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (71 bytes)

0a092162613631643131381207426f6e736169201a0342533122061020ba61d118282b422020fe0542d3baee6fa7780a975a4a1f929f3b93741de1cb63a8eca218a83f56714800

Hex Analysis:

Size:	71 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 #7825973 Success

Packet Information

Payload Data

Decoded Data: