Packet #2613654

Database ID:	2613654
Mesh Packet ID:	`0x992e1417` Used for correlation across gateways
Timestamp:	2026-04-02 16:19:18 UTC
From Node:	iii 918a (iiiS)
To Node:	niee niee (niee)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	CityMesh (City)
Channel:	Bulgaria
RSSI:	-101 dBm
SNR:	8.0 dBm
Hop Info:	0/2 hops Start: 2, Limit: 2
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:	iii 918a
Short Name:	iiiS
Node ID:	!f02b918a
MAC Address:	wr3wK5GK
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:	75 bytes
Gateway:	!a0cbb8ac
Channel:	Bulgaria
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 2

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 3 more...

Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!a0cbb8ac` Node ID format
`channel_id`	`Bulgaria`
`packet`	`MeshPacket` (75 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`4029387146` Source node ID	uint32
`to`	`3008509804` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`75` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`2` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-101.0` dBm Signal strength at gateway	int32
`rx_snr`	`8.00` dB Signal quality at gateway	float
`rx_time`	`1775146757` 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`	`252` Next hop node ID	uint32
`relay_node`	`160` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1775146758.564445` 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
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!a0cbb8ac`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -101.0 dBm SNR: 8.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	75 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!f02b918a", "long_name": "iii 918a", "short_name": "iiiS", "macaddr": "wr3wK5GK", "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": 4029387146, "to": 3008509804, "id": 2569933847, "rx_time": 1775146757, "rx_snr": 8.0, "rx_rssi": -101, "hop_limit": 2, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 252, "relay_node": 160, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216630326239313861120869696920393138611a04696969532206c2bdf02b918a284738014220a15e0fd297db495cdaf0e11de76b5f20fa39c958af514f6abe0e9b46f34bf47b4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!f02b918a", "long_name": "iii 918a", "short_name": "iiiS", "macaddr": "wr3wK5GK", "hw_model": "TRACKER_T1000_E", "role": "CLIENT_MUTE", "public_key": "oV4P0pfbSVza8OEd52tfIPo5yVivUU9qvg6bRvNL9Hs=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (75 bytes)

0a09216630326239313861120869696920393138611a04696969532206c2bdf02b918a284738014220a15e0fd297db495cdaf0e11de76b5f20fa39c958af514f6abe0e9b46f34bf47b4800

Hex Analysis:

Size:	75 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 #2613654 Success

Packet Information

Payload Data

Decoded Data: