Packet #31495

Database ID:	31495
Mesh Packet ID:	`0x72379d5d` Used for correlation across gateways
Timestamp:	2026-04-01 07:49:26 UTC
From Node:	arkh-07 (am07)
To Node:	Meshtastic e7b9 (e7b9)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	arkh-07 (am07)
Channel:	LongFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/5 hops Start: 5, Limit: 5

Long Name:	arkh-07
Short Name:	am07
Node ID:	!9028d008
MAC Address:	lKmQKNAI
Hardware:	HELTEC_VISION_MASTER_E213

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:	!9028d008
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 5

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

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!9028d008` 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`	`2418593800` Source node ID	uint32
`to`	`1334306745` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`74` bytes	size
`hop_limit`	`5` Remaining hops allowed	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	Not set	int32
`rx_snr`	Not set	float
`rx_time`	`1775029764` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`70` Packet priority level	enum
`delayed`	Not set	enum
`channel`	Not set	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`8` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1775029766.2615988` 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

MQTT-Specific Fields

Gateway ID:	`!9028d008`
Zero Hop Policy:	Enabled Direct gateway connection

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": "!9028d008", "long_name": "arkh-07", "short_name": "am07", "macaddr": "lKmQKNAI", "hw_model": "HELTEC_VISION_MASTER_E213" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!9028d008", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2418593800, "to": 1334306745, "id": 1916247389, "rx_time": 1775029764, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 5, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 70, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 8, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213930323864303038120761726b682d30371a04616d3037220694a99028d0082843380c4220c90e11a9dd4d82ed0b4cc389c8177d0338682464a6dc8a051e4e98847d6ce96b4801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!9028d008", "long_name": "arkh-07", "short_name": "am07", "macaddr": "lKmQKNAI", "hw_model": "HELTEC_VISION_MASTER_E213", "role": "CLIENT_BASE", "public_key": "yQ4Rqd1Ngu0LTMOJyBd9AzhoJGSm3IoFHk6YhH1s6Ws=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (74 bytes)

0a09213930323864303038120761726b682d30371a04616d3037220694a99028d0082843380c4220c90e11a9dd4d82ed0b4cc389c8177d0338682464a6dc8a051e4e98847d6ce96b4801

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 #31495 Success

Packet Information

Payload Data

Decoded Data: