Packet #134745

Database ID:	134745
Mesh Packet ID:	`0x25e12e20` Used for correlation across gateways
Timestamp:	2026-03-27 16:25:03 UTC
From Node:	Bill KI6GQX - WRUK677 (WTK)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	CSM_Base (CSMB)
Channel:	LongMod
RSSI:	-108 dBm
SNR:	-4.5 dBm
Hop Info:	2/7 hops Start: 7, Limit: 5
Relay Node:	`10` CMTM Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	Bill KI6GQX - WRUK677
Short Name:	WTK
Node ID:	!78ae087f
MAC Address:	6x54rgh/
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:	86 bytes
Gateway:	!4357ec1c
Channel:	LongMod
Payload Type:	NODEINFO_APP
Hop Count:	2 / 7

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: LongMod
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!4357ec1c` Node ID format
`channel_id`	`LongMod`
`packet`	`MeshPacket` (86 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2024671359` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`86` bytes	size
`hop_limit`	`5` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-108.0` dBm Signal strength at gateway	int32
`rx_snr`	`-4.50` dB Signal quality at gateway	float
`rx_time`	`1774628702` 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`	`16` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1774628703.9129975` Unix timestamp	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)
✓ Custom channel: LongMod
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!4357ec1c`
Signal Metrics:	RSSI: -108.0 dBm SNR: -4.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	86 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!78ae087f", "long_name": "Bill KI6GQX - WRUK677", "short_name": "WTK", "macaddr": "6x54rgh/", "hw_model": "TRACKER_T1000_E" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!4357ec1c", "channel_id": "LongMod", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2024671359, "to": 4294967295, "id": 635514400, "rx_time": 1774628702, "rx_snr": -4.5, "rx_rssi": -108, "hop_limit": 5, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 16, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213738616530383766121642696c6c20204b4936475158202d205752554b3637371a0357544b2206eb1e78ae087f28474220d321a43f2998d373bef2b7d9e491d94ed0ccac9da69c8334b3ecfc2addd7944e4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!78ae087f", "long_name": "Bill KI6GQX - WRUK677", "short_name": "WTK", "macaddr": "6x54rgh/", "hw_model": "TRACKER_T1000_E", "public_key": "0yGkPymY03O+8rfZ5JHZTtDMrJ2mnIM0s+z8Kt3XlE4=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (86 bytes)

0a09213738616530383766121642696c6c20204b4936475158202d205752554b3637371a0357544b2206eb1e78ae087f28474220d321a43f2998d373bef2b7d9e491d94ed0ccac9da69c8334b3ecfc2addd7944e4800

Hex Analysis:

Size:	86 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 #134745 Success

Packet Information

Payload Data

Decoded Data: