Packet #10404928

Database ID:	10404928
Mesh Packet ID:	`0x7bdf4921` Used for correlation across gateways
Timestamp:	2025-09-13 10:36:23 UTC
From Node:	Meshtastic d9c4🗼 (d9c4)
To Node:	cardEWer (CAEW)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Meshtastic d9c4🗼 (d9c4)
Channel:	Iberia
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/3 hops Start: 3, Limit: 3

Long Name:	Meshtastic d9c4🗼
Short Name:	d9c4
Node ID:	!e00cd9c4
MAC Address:	mIjgDNnE
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:	84 bytes
Gateway:	!e00cd9c4
Channel:	Iberia
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 3

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 3 more...

Exposure Risks:
⚠ Packet visible to MQTT subscribers

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!e00cd9c4` Node ID format
`channel_id`	`Iberia`
`packet`	`MeshPacket` (84 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3758938564` Source node ID	uint32
`to`	`3556121152` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`84` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`3` 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`	`1757759782` 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`	`196` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1757759783.8283637` 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: Iberia
✓ Gateway node ID tracked
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Packet visible to MQTT subscribers

MQTT-Specific Fields

Gateway ID:	`!e00cd9c4`
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:	84 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!e00cd9c4", "long_name": "Meshtastic d9c4🗼", "short_name": "d9c4", "macaddr": "mIjgDNnE", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!e00cd9c4", "channel_id": "Iberia", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3758938564, "to": 3556121152, "id": 2078230817, "rx_time": 1757759782, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 3, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 70, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 196, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921653030636439633412134d6573687461737469632064396334f09f97bc1a046439633422069888e00cd9c4282b4220dbcdbfd54e99b7fd328ddebd7e66ec911d4c32778df1b9b8ce1d910970093d6c4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!e00cd9c4", "long_name": "Meshtastic d9c4🗼", "short_name": "d9c4", "macaddr": "mIjgDNnE", "hw_model": "HELTEC_V3", "public_key": "282/1U6Zt/0yjd69fmbskR1MMneN8bm4zh2RCXAJPWw=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (84 bytes)

0a0921653030636439633412134d6573687461737469632064396334f09f97bc1a046439633422069888e00cd9c4282b4220dbcdbfd54e99b7fd328ddebd7e66ec911d4c32778df1b9b8ce1d910970093d6c4800

Hex Analysis:

Size:	84 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 #10404928 Success

Packet Information

Payload Data

Decoded Data: