Packet #3677875

Database ID:	3677875
Mesh Packet ID:	`0x6e806442` Used for correlation across gateways
Timestamp:	2025-07-14 01:55:46 UTC
From Node:	ALHAMA NODO AUTONOMO 868MHZ📡🕸🌞 (ALH1)
To Node:	NarKeTe-868📡🏠 (N8H)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Alex (AMG)
Channel:	LongFast
RSSI:	-65 dBm
SNR:	7.0 dBm
Hop Info:	2/7 hops Start: 7, Limit: 5

Long Name:	ALHAMA NODO AUTONOMO 868MHZ📡🕸🌞
Short Name:	ALH1
Node ID:	!502e72d8
MAC Address:	9rZQLnLY
Hardware:	SEEED_SOLAR_NODE

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:	104 bytes
Gateway:	!433ce0c8
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	2 / 7

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 1 more...

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!433ce0c8` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (104 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1345221336` Source node ID	uint32
`to`	`471256224` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`104` bytes	size
`hop_limit`	`5` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-65.0` dBm Signal strength at gateway	int32
`rx_snr`	`7.00` dB Signal quality at gateway	float
`rx_time`	`1752458143` 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`	`152` Next hop node ID	uint32
`relay_node`	`120` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1752458146.4247956` 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

Exposure Risks:

⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!433ce0c8`
Signal Metrics:	RSSI: -65.0 dBm SNR: 7.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	104 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!502e72d8", "long_name": "ALHAMA NODO AUTONOMO 868MHZ📡🕸🌞", "short_name": "ALH1", "macaddr": "9rZQLnLY", "hw_model": "SEEED_SOLAR_NODE" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!433ce0c8", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1345221336, "to": 471256224, "id": 1853908034, "rx_time": 1752458143, "rx_snr": 7.0, "rx_rssi": -65, "hop_limit": 5, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 152, "relay_node": 120, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092135303265373264381227414c48414d41204e4f444f204155544f4e4f4d4f203836384d485af09f93a1f09f95b8f09f8c9e1a04414c48312206f6b6502e72d8285f4220ec47198397101eea4b3fc3fc6b0f7e6ca97144932b9d0fee75ed35897efa612b4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!502e72d8", "long_name": "ALHAMA NODO AUTONOMO 868MHZ📡🕸🌞", "short_name": "ALH1", "macaddr": "9rZQLnLY", "hw_model": "SEEED_SOLAR_NODE", "public_key": "7EcZg5cQHupLP8P8aw9+bKlxRJMrnQ/ude01iX76YSs=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (104 bytes)

0a092135303265373264381227414c48414d41204e4f444f204155544f4e4f4d4f203836384d485af09f93a1f09f95b8f09f8c9e1a04414c48312206f6b6502e72d8285f4220ec47198397101eea4b3fc3fc6b0f7e6ca97144932b9d0fee75ed35897efa612b4800

Hex Analysis:

Size:	104 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 #3677875 Success

Packet Information

Payload Data

Decoded Data: