Packet #185856

Database ID:	185856
Mesh Packet ID:	`0xc996224e` Utilizado para correlação entre gateways
Tempo:	2025-10-05 02:51:55 UTC
Do Node:	🌤️EB1EMB🏡qth🌐 (snv5)
Para o Node:	!ba56b7bc (b7bc)
Successo:	Processado
Protocolo:	NODEINFO_APP Port: 4

Gateway:	Prewashed22-CL-8 (PW22)
Canal:	LongFast
RSSI:	-89 dBm
SNR:	13.0 dBm
Info Hop:	3/4 hops Início: 4, Limite: 1

Long Name:	🌤️EB1EMB🏡qth🌐
Short Name:	snv5
Node ID:	!ae61421c
MAC Address:	mD2uYUIc
Hardware:	SEEED_XIAO_S3

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:	91 bytes
Gateway:	!7e93e698
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	3 / 4

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`	`!7e93e698` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (91 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2925609500` Source node ID	uint32
`to`	`3126245308` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`91` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-89.0` dBm Signal strength at gateway	int32
`rx_snr`	`13.00` dB Signal quality at gateway	float
`rx_time`	`1759629114` 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`	Not set	uint32
`relay_node`	`73` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1759629115.7872608` 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 (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!7e93e698`
Signal Metrics:	RSSI: -89.0 dBm SNR: 13.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	91 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!ae61421c", "long_name": "🌤️EB1EMB🏡qth🌐", "short_name": "snv5", "macaddr": "mD2uYUIc", "hw_model": "SEEED_XIAO_S3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!7e93e698", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2925609500, "to": 3126245308, "id": 3382059598, "rx_time": 1759629114, "rx_snr": 13.0, "rx_rssi": -89, "hop_limit": 1, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 73, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092161653631343231631218f09f8ca4efb88f454231454d42f09f8fa1717468f09f8c901a04736e76352206983dae61421c285138014220a14e1dc405c6b22d15685ab865d89170910d9f8ae8db37ff5dc6f03264e8a1634800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!ae61421c", "long_name": "🌤️EB1EMB🏡qth🌐", "short_name": "snv5", "macaddr": "mD2uYUIc", "hw_model": "SEEED_XIAO_S3", "role": "CLIENT_MUTE", "public_key": "oU4dxAXGsi0VaFq4ZdiRcJENn4ro2zf/XcbwMmTooWM=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (91 bytes)

0a092161653631343231631218f09f8ca4efb88f454231454d42f09f8fa1717468f09f8c901a04736e76352206983dae61421c285138014220a14e1dc405c6b22d15685ab865d89170910d9f8ae8db37ff5dc6f03264e8a1634800

Hex Analysis:

Size:	91 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 #185856 Successo

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