Packet #2328817

Database ID:	2328817
Mesh Packet ID:	`0xe239c4e0` Used for correlation across gateways
Timestamp:	2025-11-18 14:36:27 UTC
From Node:	Pads Mobile Node (23e4)
To Node:	Meshtastic ETNA (ETNA)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Pads GO Node (PaDD)
Channel:	LongFast
RSSI:	-44 dBm
SNR:	5.75 dBm
Hop Info:	0/4 hops Start: 4, Limit: 4
Relay Node:	`e4` 23e4 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	Pads Mobile Node
Short Name:	23e4
Node ID:	!9e9e23e4
MAC Address:	nBOeniPk
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:	81 bytes
Gateway:	!9e9d73d8
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`	`!9e9d73d8` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (81 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2661164004` Source node ID	uint32
`to`	`2249414613` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`81` 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`	`-44.0` dBm Signal strength at gateway	int32
`rx_snr`	`5.75` dB Signal quality at gateway	float
`rx_time`	`1763476680` 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`	`228` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1763476587.8466568` 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:	`!9e9d73d8`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -44.0 dBm SNR: 5.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	81 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!9e9e23e4", "long_name": "Pads Mobile Node", "short_name": "23e4", "macaddr": "nBOeniPk", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!9e9d73d8", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2661164004, "to": 2249414613, "id": 3795436768, "rx_time": 1763476680, "rx_snr": 5.75, "rx_rssi": -44, "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": 228, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213965396532336534121050616473204d6f62696c65204e6f64651a043233653422069c139e9e23e4282b422005565f99560eea63661fb4619118108145ca6767cb345010d3b3a715b363db104800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!9e9e23e4", "long_name": "Pads Mobile Node", "short_name": "23e4", "macaddr": "nBOeniPk", "hw_model": "HELTEC_V3", "public_key": "BVZfmVYO6mNmH7RhkRgQgUXKZ2fLNFAQ07OnFbNj2xA=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (81 bytes)

0a09213965396532336534121050616473204d6f62696c65204e6f64651a043233653422069c139e9e23e4282b422005565f99560eea63661fb4619118108145ca6767cb345010d3b3a715b363db104800

Hex Analysis:

Size:	81 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 #2328817 Success

Packet Information

Payload Data

Decoded Data: