Packet #783463

Database ID:	783463
Mesh Packet ID:	`0xa0d102aa` Used for correlation across gateways
Timestamp:	2026-04-11 17:54:21 UTC
From Node:	Kronos (KR0N)
To Node:	Snake4you (Snak)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Neumünster Mitte 🔗 Meshtastic-Kiel (NMSM)
Channel:	LongFast
RSSI:	-110 dBm
SNR:	-12.25 dBm
Hop Info:	0/3 hops Start: 3, Limit: 3
Relay Node:	`44` KR0N Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	Kronos
Short Name:	KR0N
Node ID:	!aca9e544
MAC Address:	2IWsqeVE
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:	71 bytes
Gateway:	!6984fa5c
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	0 / 3

Privacy Summary

Exposure Level:
Direct Message

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

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 1 more...

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!6984fa5c` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (71 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`2896815428` Source node ID	uint32
`to`	`4055689144` Target node ID	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`71` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-110.0` dBm Signal strength at gateway	int32
`rx_snr`	`-12.25` dB Signal quality at gateway	float
`rx_time`	`1775930060` 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`	`68` 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: Direct Message

Privacy Features:

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

Exposure Risks:

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

MQTT-Specific Fields

Gateway ID:	`!6984fa5c`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -110.0 dBm SNR: -12.25 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	71 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!aca9e544", "long_name": "Kronos", "short_name": "KR0N", "macaddr": "2IWsqeVE", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 2896815428, "to": 4055689144, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhYWNhOWU1NDQSBktyb25vcxoES1IwTiIG2IWsqeVEKCtCICq8IrH6IPm3HYBgCYJT1acKuSTHVKNSv+fE4SIlxzlOSAA=", "want_response": true, "bitfield": 3 }, "id": 2698052266, "rx_time": 1775930060, "rx_snr": -12.25, "hop_limit": 3, "rx_rssi": -110, "hop_start": 3, "relay_node": 68, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "LongFast", "gateway_id": "!6984fa5c" }, "mesh_packet": { "from": 2896815428, "to": 4055689144, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhYWNhOWU1NDQSBktyb25vcxoES1IwTiIG2IWsqeVEKCtCICq8IrH6IPm3HYBgCYJT1acKuSTHVKNSv+fE4SIlxzlOSAA=", "want_response": true, "bitfield": 3, "parsed_payload": { "id": "!aca9e544", "long_name": "Kronos", "short_name": "KR0N", "macaddr": "2IWsqeVE", "hw_model": "HELTEC_V3", "public_key": "Krwisfog+bcdgGAJglPVpwq5JMdUo1K/58ThIiXHOU4=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 2698052266, "rx_time": 1775930060, "rx_snr": -12.25, "hop_limit": 3, "rx_rssi": -110, "hop_start": 3, "relay_node": 68, "transport_mechanism": "TRANSPORT_LORA" } }

Raw Packet Data (71 bytes)

0a0921616361396535343412064b726f6e6f731a044b52304e2206d885aca9e544282b42202abc22b1fa20f9b71d8060098253d5a70ab924c754a352bfe7c4e12225c7394e4800

Hex Analysis:

Size:	71 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 #783463 Success

Packet Information

Payload Data

Decoded Data: