Packet #579555

Database ID:	579555
Mesh Packet ID:	`0xa08a35a7` Used for correlation across gateways
Timestamp:	2026-05-09 13:48:00 UTC
From Node:	Meshtastic aea4 (aea4)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	X99 MQTT 🇵🇹 (X99M)
Channel:	LongFast
RSSI:	-120 dBm
SNR:	-11.0 dBm
Hop Info:	4/6 hops Start: 6, Limit: 2
Relay Node:	None

Long Name:	Meshtastic aea4
Short Name:	aea4
Node ID:	!b03caea4
MAC Address:	NM2wPK6k
Hardware:	HELTEC_V3

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:	!da548d50
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	4 / 6

Privacy Summary

Exposure Level:
Broadcast

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

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!da548d50` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (78 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`2956766884` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`78` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`6` Initial hop limit	uint32
`hops_taken`	`4` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-120.0` dBm Signal strength at gateway	int32
`rx_snr`	`-11.00` dB Signal quality at gateway	float
`rx_time`	`1778334479` 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`	Not set	uint32
`tx_after`	Not set	uint32
`timestamp`	Not set	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

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (4 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!da548d50`
Signal Metrics:	RSSI: -120.0 dBm SNR: -11.00 dB

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": "!b03caea4", "long_name": "Meshtastic aea4", "short_name": "aea4", "macaddr": "NM2wPK6k", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 2956766884, "to": 4294967295, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhYjAzY2FlYTQSD01lc2h0YXN0aWMgYWVhNBoEYWVhNCIGNM2wPK6kKCtCIFFVzzkbAiviS4hwYk51n/s4aa2YAwtv3LayyTlI3Ngy" }, "id": 2693412263, "rx_time": 1778334479, "rx_snr": -11.0, "hop_limit": 2, "rx_rssi": -120, "hop_start": 6 }, "channel_id": "LongFast", "gateway_id": "!da548d50" }, "mesh_packet": { "from": 2956766884, "to": 4294967295, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhYjAzY2FlYTQSD01lc2h0YXN0aWMgYWVhNBoEYWVhNCIGNM2wPK6kKCtCIFFVzzkbAiviS4hwYk51n/s4aa2YAwtv3LayyTlI3Ngy", "parsed_payload": { "id": "!b03caea4", "long_name": "Meshtastic aea4", "short_name": "aea4", "macaddr": "NM2wPK6k", "hw_model": "HELTEC_V3", "public_key": "UVXPORsCK+JLiHBiTnWf+zhprZgDC2/ctrLJOUjc2DI=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 2693412263, "rx_time": 1778334479, "rx_snr": -11.0, "hop_limit": 2, "rx_rssi": -120, "hop_start": 6 } }

Raw Packet Data (78 bytes)

0a09216230336361656134120f4d65736874617374696320616561341a0461656134220634cdb03caea4282b42205155cf391b022be24b8870624e759ffb3869ad98030b6fdcb6b2c93948dcd832

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.

Packet #579555 Success

Packet Information

Payload Data

Decoded Data: