Packet #2887797

Database ID:	2887797
Mesh Packet ID:	`0xea0672ea` Used for correlation across gateways
Timestamp:	2026-03-11 09:48:01 UTC
From Node:	Foros Arrao Baixo☀🇵🇹-GT-8 (FAS2)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Lonlis Base🇵🇹-GW-8 (JPB)
Channel:	LongFast
RSSI:	-85 dBm
SNR:	5.5 dBm
Hop Info:	0/4 hops Start: 4, Limit: 4

Long Name:	Foros Arrao Baixo☀🇵🇹-GT-8
Short Name:	FAS2
Node ID:	!d4a89cd0
MAC Address:	HNvUqJzQ
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:	100 bytes
Gateway:	!02ecda98
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 4

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!02ecda98` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (100 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3567819984` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`100` bytes	size
`hop_limit`	`4` Remaining hops allowed	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-85.0` dBm Signal strength at gateway	int32
`rx_snr`	`5.50` dB Signal quality at gateway	float
`rx_time`	`1773222480` 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`	`208` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1773222481.3062105` Unix timestamp	uint32

MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Broadcast

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!02ecda98`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -85.0 dBm SNR: 5.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	100 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!d4a89cd0", "long_name": "Foros Arrao Baixo☀🇵🇹-GT-8", "short_name": "FAS2", "macaddr": "HNvUqJzQ", "hw_model": "SEEED_XIAO_S3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!02ecda98", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3567819984, "to": 4294967295, "id": 3926291178, "rx_time": 1773222480, "rx_snr": 5.5, "rx_rssi": -85, "hop_limit": 4, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 208, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092164346138396364301221466f726f7320417272616f20426169786fe29880f09f87b5f09f87b92d47542d381a044641533222061cdbd4a89cd02851380c4220e211bb0ab43e7769d5b40dd4615963a6593f791ebe3148217fe1ebac9994686b4801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!d4a89cd0", "long_name": "Foros Arrao Baixo☀🇵🇹-GT-8", "short_name": "FAS2", "macaddr": "HNvUqJzQ", "hw_model": "SEEED_XIAO_S3", "role": "CLIENT_BASE", "public_key": "4hG7CrQ+d2nVtA3UYVljplk/eR6+MUghf+HrrJmUaGs=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (100 bytes)

0a092164346138396364301221466f726f7320417272616f20426169786fe29880f09f87b5f09f87b92d47542d381a044641533222061cdbd4a89cd02851380c4220e211bb0ab43e7769d5b40dd4615963a6593f791ebe3148217fe1ebac9994686b4801

Hex Analysis:

Size:	100 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 #2887797 Success

Packet Information

Payload Data

Decoded Data: