Packet #2586138

Database ID:	2586138
Mesh Packet ID:	`0xa01c264a` Used for correlation across gateways
Timestamp:	2026-03-31 17:45:10 UTC
From Node:	iTushev SenseCAP a00c (iTSC)
To Node:	MeshMonitor VR (VRMM)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	CityMesh (City)
Channel:	Bulgaria
RSSI:	-102 dBm
SNR:	6.75 dBm
Hop Info:	1/2 hops Start: 2, Limit: 1
Relay Node:	`a0` AP03 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	iTushev SenseCAP a00c
Short Name:	iTSC
Node ID:	!ae15a00c
MAC Address:	/MeuFaAM
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:	88 bytes
Gateway:	!a0cbb8ac
Channel:	Bulgaria
Payload Type:	NODEINFO_APP
Hop Count:	1 / 2

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...

Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (1 hops)
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!a0cbb8ac` Node ID format
`channel_id`	`Bulgaria`
`packet`	`MeshPacket` (88 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2920652812` Source node ID	uint32
`to`	`1128024868` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`88` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`2` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-102.0` dBm Signal strength at gateway	int32
`rx_snr`	`6.75` dB Signal quality at gateway	float
`rx_time`	`1774979109` 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`	`160` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1774979110.7594907` 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
✓ Custom channel: Bulgaria
✓ Gateway node ID tracked

Exposure Risks:

⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!a0cbb8ac`
Signal Metrics:	RSSI: -102.0 dBm SNR: 6.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	88 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!ae15a00c", "long_name": "iTushev SenseCAP a00c", "short_name": "iTSC", "macaddr": "/MeuFaAM", "hw_model": "TRACKER_T1000_E" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!a0cbb8ac", "channel_id": "Bulgaria", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2920652812, "to": 1128024868, "id": 2686199370, "rx_time": 1774979109, "rx_snr": 6.75, "rx_rssi": -102, "hop_limit": 1, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 160, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092161653135613030631215695475736865762053656e736543415020613030631a04695453432206fcc7ae15a00c28473801422076dc7a43bf7b819e14bc3bf0921914cfd0bb9b5ab6746ee84f2d7539313dae014800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!ae15a00c", "long_name": "iTushev SenseCAP a00c", "short_name": "iTSC", "macaddr": "/MeuFaAM", "hw_model": "TRACKER_T1000_E", "role": "CLIENT_MUTE", "public_key": "dtx6Q797gZ4UvDvwkhkUz9C7m1q2dG7oTy11OTE9rgE=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (88 bytes)

0a092161653135613030631215695475736865762053656e736543415020613030631a04695453432206fcc7ae15a00c28473801422076dc7a43bf7b819e14bc3bf0921914cfd0bb9b5ab6746ee84f2d7539313dae014800

Hex Analysis:

Size:	88 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 #2586138 Success

Packet Information

Payload Data

Decoded Data: