Packet #18355581

Database ID:	18355581
Mesh Packet ID:	`0xb7e9db4e` Used for correlation across gateways
Timestamp:	2026-06-09 13:40:17 UTC
From Node:	Meshtastic ff80 (LZRD)
To Node:	!0404f894 (f894)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Zoͦmͫвⷡiͥeͤ [GW8] (🧟)
Channel:	MediumFast
RSSI:	-91 dBm
SNR:	-0.75 dBm
Hop Info:	5/7 hops Start: 7, Limit: 2

Long Name:	Meshtastic ff80
Short Name:	LZRD
Node ID:	!6984ff80
MAC Address:	kHBphP+A
Hardware:	HELTEC_V4

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:	!deadc0de
Channel:	MediumFast
Payload Type:	NODEINFO_APP
Hop Count:	5 / 7

Privacy Summary

Exposure Level:
Direct Message

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

Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (5 hops)
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!deadc0de` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (80 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1770323840` Source node ID	uint32
`to`	`67434644` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`80` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`5` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-91.0` dBm Signal strength at gateway	int32
`rx_snr`	`-0.75` dB Signal quality at gateway	float
`rx_time`	`1780859799` 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`	`140` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1781001617.908051` 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
✓ Custom channel: MediumFast
✓ Gateway node ID tracked

Exposure Risks:

⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (5 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!deadc0de`
Signal Metrics:	RSSI: -91.0 dBm SNR: -0.75 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": "!6984ff80", "long_name": "Meshtastic ff80", "short_name": "LZRD", "macaddr": "kHBphP+A", "hw_model": "HELTEC_V4" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!deadc0de", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1770323840, "to": 67434644, "id": 3085556558, "rx_time": 1780859799, "rx_snr": -0.75, "rx_rssi": -91, "hop_limit": 2, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 140, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213639383466663830120f4d65736874617374696320666638301a044c5a5244220690706984ff80286e4220ed4eed89f50c93f141b8bf78ce95c87f3315c1dbba4067c0bc8f47ce289f1d324800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!6984ff80", "long_name": "Meshtastic ff80", "short_name": "LZRD", "macaddr": "kHBphP+A", "hw_model": "HELTEC_V4", "public_key": "7U7tifUMk/FBuL94zpXIfzMVwdu6QGfAvI9HziifHTI=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (80 bytes)

0a09213639383466663830120f4d65736874617374696320666638301a044c5a5244220690706984ff80286e4220ed4eed89f50c93f141b8bf78ce95c87f3315c1dbba4067c0bc8f47ce289f1d324800

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 #18355581 Success

Packet Information

Payload Data

Decoded Data: