Packet #164117

Database ID:	164117
Mesh Packet ID:	`0x0339d4d6` Used for correlation across gateways
Timestamp:	2026-04-07 04:32:42 UTC
From Node:	Bryce KO6IZG (BEK)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Sauce Home MQTT HDMesh.org (SS01)
Channel:	LongMod
RSSI:	-125 dBm
SNR:	-6.75 dBm
Hop Info:	1/7 hops Start: 7, Limit: 6
Relay Node:	`06` AVR3 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	Bryce KO6IZG
Short Name:	BEK
Node ID:	!586e0f67
MAC Address:	ySZYbg9n
Hardware:	T_ECHO

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:	76 bytes
Gateway:	!33603060
Channel:	LongMod
Payload Type:	NODEINFO_APP
Hop Count:	1 / 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`	`!33603060` Node ID format
`channel_id`	`LongMod`
`packet`	`MeshPacket` (76 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1483607911` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`76` bytes	size
`hop_limit`	`6` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-125.0` dBm Signal strength at gateway	int32
`rx_snr`	`-6.75` dB Signal quality at gateway	float
`rx_time`	`1775536358` 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`	`6` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1775536362.1034744` 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 (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!33603060`
Signal Metrics:	RSSI: -125.0 dBm SNR: -6.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	76 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!586e0f67", "long_name": "Bryce KO6IZG", "short_name": "BEK", "macaddr": "ySZYbg9n", "hw_model": "T_ECHO" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!33603060", "channel_id": "LongMod", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1483607911, "to": 4294967295, "id": 54121686, "rx_time": 1775536358, "rx_snr": -6.75, "rx_rssi": -125, "hop_limit": 6, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 6, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213538366530663637120c4272796365204b4f36495a471a0342454b2206c926586e0f6728074220841f87bf475d347f814ccea0ccef16eb3aef2b67b7c56a5c857f4c451c304d684800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!586e0f67", "long_name": "Bryce KO6IZG", "short_name": "BEK", "macaddr": "ySZYbg9n", "hw_model": "T_ECHO", "public_key": "hB+Hv0ddNH+BTM6gzO8W6zrvK2e3xWpchX9MRRwwTWg=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (76 bytes)

0a09213538366530663637120c4272796365204b4f36495a471a0342454b2206c926586e0f6728074220841f87bf475d347f814ccea0ccef16eb3aef2b67b7c56a5c857f4c451c304d684800

Hex Analysis:

Size:	76 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 #164117 Success

Packet Information

Payload Data

Decoded Data: