Packet #3833013

Database ID:	3833013
Mesh Packet ID:	`0x86bffc95` Used for correlation across gateways
Timestamp:	2025-07-15 22:01:06 UTC
From Node:	FUNI-CL-868 (FUNI)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	MCMG-CL-868📡🌐 (MCMG)
Channel:	LongFast
RSSI:	-92 dBm
SNR:	11.5 dBm
Hop Info:	0/7 hops Start: 7, Limit: 7

Long Name:	FUNI-CL-868
Short Name:	FUNI
Node ID:	!e9147be6
MAC Address:	0fvpFHvm
Hardware:	T_ECHO

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:	74 bytes
Gateway:	!6c7443fc
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 7

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!6c7443fc` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (74 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3910433766` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`74` bytes	size
`hop_limit`	`7` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-92.0` dBm Signal strength at gateway	int32
`rx_snr`	`11.50` dB Signal quality at gateway	float
`rx_time`	`1752616857` 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`	`230` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1752616866.5452087` Unix timestamp	uint32

MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Broadcast

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

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

MQTT-Specific Fields

Gateway ID:	`!6c7443fc`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -92.0 dBm SNR: 11.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	74 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!e9147be6", "long_name": "FUNI-CL-868", "short_name": "FUNI", "macaddr": "0fvpFHvm", "hw_model": "T_ECHO" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!6c7443fc", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3910433766, "to": 4294967295, "id": 2260728981, "rx_time": 1752616857, "rx_snr": 11.5, "rx_rssi": -92, "hop_limit": 7, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 230, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216539313437626536120b46554e492d434c2d3836381a0446554e492206d1fbe9147be62807422091b836aa03499f7d124b1a8ec3ecbf0cc271f8d93f9aa9cff6b5afaf9abdda25", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!e9147be6", "long_name": "FUNI-CL-868", "short_name": "FUNI", "macaddr": "0fvpFHvm", "hw_model": "T_ECHO", "public_key": "kbg2qgNJn30SSxqOw+y/DMJx+Nk/mqnP9rWvr5q92iU=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (74 bytes)

0a09216539313437626536120b46554e492d434c2d3836381a0446554e492206d1fbe9147be62807422091b836aa03499f7d124b1a8ec3ecbf0cc271f8d93f9aa9cff6b5afaf9abdda25

Hex Analysis:

Size:	74 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 #3833013 Success

Packet Information

Payload Data

Decoded Data: