Packet #10274368

Database ID:	10274368
Mesh Packet ID:	`0xb3d88444` Used for correlation across gateways
Timestamp:	2025-09-12 12:10:33 UTC
From Node:	Nodo Móvil escu_12 (ESCU)
To Node:	EC2UT Nodo (📡)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	NodoMovil🚗🌐(EA8585URE)🇪🇸 (🚗)
Channel:	LongFast
RSSI:	-105 dBm
SNR:	-0.5 dBm
Hop Info:	0/5 hops Start: 5, Limit: 5

Long Name:	Nodo Móvil escu_12
Short Name:	ESCU
Node ID:	!077f73a7
MAC Address:	8YIHf3On
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:	86 bytes
Gateway:	!a0cc2c24
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
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!a0cc2c24` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (86 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`125793191` Source node ID	uint32
`to`	`541339923` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`86` 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`	`-105.0` dBm Signal strength at gateway	int32
`rx_snr`	`-0.50` dB Signal quality at gateway	float
`rx_time`	`1757679031` 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`	`253` Next hop node ID	uint32
`relay_node`	`167` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1757679033.2247596` 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:	`!a0cc2c24`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -105.0 dBm SNR: -0.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	86 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!077f73a7", "long_name": "Nodo Móvil escu_12", "short_name": "ESCU", "macaddr": "8YIHf3On", "hw_model": "T_ECHO" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!a0cc2c24", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 125793191, "to": 541339923, "id": 3017311300, "rx_time": 1757679031, "rx_snr": -0.5, "rx_rssi": -105, "hop_limit": 5, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 253, "relay_node": 167, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921303737663733613712134e6f646f204dc3b376696c20657363755f31321a04455343552206f182077f73a728073801422006f0e9435609b2b436a56f5354f8c177276323cbd8f1ba104396a4e1425636654800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!077f73a7", "long_name": "Nodo Móvil escu_12", "short_name": "ESCU", "macaddr": "8YIHf3On", "hw_model": "T_ECHO", "role": "CLIENT_MUTE", "public_key": "BvDpQ1YJsrQ2pW9TVPjBdydjI8vY8boQQ5ak4UJWNmU=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (86 bytes)

0a0921303737663733613712134e6f646f204dc3b376696c20657363755f31321a04455343552206f182077f73a728073801422006f0e9435609b2b436a56f5354f8c177276323cbd8f1ba104396a4e1425636654800

Hex Analysis:

Size:	86 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 #10274368 Success

Packet Information

Payload Data

Decoded Data: