Packet #366816

Database ID:	366816
Mesh Packet ID:	`0xde96741b` Utilizado para correlação entre gateways
Tempo:	2025-10-15 16:04:06 UTC
Do Node:	os5T-8j🇵🇹 (os5T)
Para o Node:	RRS5-CL-8 (RRS5)
Successo:	Processado
Protocolo:	NODEINFO_APP Port: 4

Gateway:	os5T-8j🇵🇹 (os5T)
Canal:	LongFast
RSSI:	Unknown
SNR:	Unknown
Info Hop:	0/3 hops Início: 3, Limite: 3

Long Name:	os5T-8j🇵🇹
Short Name:	os5T
Node ID:	!8ec3a2d8
MAC Address:	2fKOw6LY
Hardware:	TRACKER_T1000_E

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:	78 bytes
Gateway:	!8ec3a2d8
Channel:	LongFast
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
+ 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`	`!8ec3a2d8` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (78 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2395185880` Source node ID	uint32
`to`	`2996805468` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`78` 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`	`1760540646` 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`	`216` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1760540646.415291` 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:	`!8ec3a2d8`
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:	78 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!8ec3a2d8", "long_name": "os5T-8j🇵🇹", "short_name": "os5T", "macaddr": "2fKOw6LY", "hw_model": "TRACKER_T1000_E" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!8ec3a2d8", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2395185880, "to": 2996805468, "id": 3734402075, "rx_time": 1760540646, "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": 216, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213865633361326438120f6f7335542d386af09f87b5f09f87b91a046f7335542206d9f28ec3a2d828474220d974fcb0f901045e63f8139dae0a9581f9fc9403fe99ecab3655f44d548d8075", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!8ec3a2d8", "long_name": "os5T-8j🇵🇹", "short_name": "os5T", "macaddr": "2fKOw6LY", "hw_model": "TRACKER_T1000_E", "public_key": "2XT8sPkBBF5j+BOdrgqVgfn8lAP+meyrNlX0TVSNgHU=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (78 bytes)

0a09213865633361326438120f6f7335542d386af09f87b5f09f87b91a046f7335542206d9f28ec3a2d828474220d974fcb0f901045e63f8139dae0a9581f9fc9403fe99ecab3655f44d548d8075

Hex Analysis:

Size:	78 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.

Pacote #366816 Successo

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