Packet #623530

Database ID:	623530
Mesh Packet ID:	`0x6d1279d0` Used for correlation across gateways
Timestamp:	2026-05-12 17:36:57 UTC
From Node:	GAR_PE (GARP)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	AL-CENTRO-GW⚡ (NAN1)
Channel:	LongFast
RSSI:	-98 dBm
SNR:	-1.75 dBm
Hop Info:	3/3 hops Start: 3, Limit: 0
Relay Node:	`74` 4274 , AE7 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	Garpe
Short Name:	GARP
Node ID:	!b56e8bdb
MAC Address:	6Z61bovb
Hardware:	NRF52_PROMICRO_DIY

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:	72 bytes
Gateway:	!04c5adf8
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	3 / 3

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`	`!04c5adf8` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (72 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`3043920859` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`72` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-98.0` dBm Signal strength at gateway	int32
`rx_snr`	`-1.75` dB Signal quality at gateway	float
`rx_time`	`1778607415` 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`	`8` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`116` Relay node ID	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 (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!04c5adf8`
Signal Metrics:	RSSI: -98.0 dBm SNR: -1.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	72 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!b56e8bdb", "long_name": "Garpe", "short_name": "GARP", "macaddr": "6Z61bovb", "hw_model": "NRF52_PROMICRO_DIY" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 3043920859, "to": 4294967295, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhYjU2ZThiZGISBUdhcnBlGgRHQVJQIgbpnrVui9soPzgBQiBIe6AmiFK2zdpfqmoLZ9R+cDHRpefAp3tyXA1LBSmqIEgA", "bitfield": 1 }, "id": 1829927376, "rx_time": 1778607415, "rx_snr": -1.75, "rx_rssi": -98, "hop_start": 3, "relay_node": 116, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "LongFast", "gateway_id": "!04c5adf8" }, "mesh_packet": { "from": 3043920859, "to": 4294967295, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhYjU2ZThiZGISBUdhcnBlGgRHQVJQIgbpnrVui9soPzgBQiBIe6AmiFK2zdpfqmoLZ9R+cDHRpefAp3tyXA1LBSmqIEgA", "bitfield": 1, "parsed_payload": { "id": "!b56e8bdb", "long_name": "Garpe", "short_name": "GARP", "macaddr": "6Z61bovb", "hw_model": "NRF52_PROMICRO_DIY", "role": "CLIENT_MUTE", "public_key": "SHugJohSts3aX6pqC2fUfnAx0aXnwKd7clwNSwUpqiA=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 1829927376, "rx_time": 1778607415, "rx_snr": -1.75, "rx_rssi": -98, "hop_start": 3, "relay_node": 116, "transport_mechanism": "TRANSPORT_LORA" } }

Raw Packet Data (72 bytes)

0a09216235366538626462120547617270651a04474152502206e99eb56e8bdb283f38014220487ba0268852b6cdda5faa6a0b67d47e7031d1a5e7c0a77b725c0d4b0529aa204800

Hex Analysis:

Size:	72 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 #623530 Success

Packet Information

Payload Data

Decoded Data: