Packet #18009001 Success

NODEINFO_APP packet from Mechanicus Dominus (M4) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	18009001
Mesh Packet ID:	`0x55ceaa54` Used for correlation across gateways
Timestamp:	2026-03-27 21:04:17 UTC
From Node:	Mechanicus Dominus (M4)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Mechanicus Dominus (M4)
Channel:	ShortFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/7 hops Start: 7, Limit: 7
Relay Node:	`b8` M4 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Payload Data

Protocol: NODEINFO_APP

Size: 83 bytes

Decoded: Yes

Decoded Data:

Long Name:	Mechanicus Dominus
Short Name:	M4
Node ID:	!6984d8b8
MAC Address:	kHBphNi4
Hardware:	HELTEC_V4

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:	83 bytes
Gateway:	!6984d8b8
Channel:	ShortFast
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 7

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: ShortFast
+ 2 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!6984d8b8` Node ID format
`channel_id`	`ShortFast`
`packet`	`MeshPacket` (83 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1770313912` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`83` bytes	size
`hop_limit`	`7` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	Not set	int32
`rx_snr`	Not set	float
`rx_time`	`1774645456` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`10` Packet priority level	enum
`delayed`	Not set	enum
`channel`	Not set	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`184` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1774645457.8453872` 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: ShortFast
✓ Gateway node ID tracked
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers

MQTT-Specific Fields

Gateway ID:	`!6984d8b8`
Zero Hop Policy:	Enabled Direct gateway connection

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	83 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!6984d8b8", "long_name": "Mechanicus Dominus", "short_name": "M4", "macaddr": "kHBphNi4", "hw_model": "HELTEC_V4" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!6984d8b8", "channel_id": "ShortFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1770313912, "to": 4294967295, "id": 1439607380, "rx_time": 1774645456, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 7, "hop_start": 7, "via_mqtt": false, "want_ack": false, "priority": 10, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 184, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921363938346438623812124d656368616e6963757320446f6d696e75731a024d34220690706984d8b8286e380c422018dba632c12c49d01ff8815a88b6615a2d0a5e583911e82b0ed82456a89453544801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!6984d8b8", "long_name": "Mechanicus Dominus", "short_name": "M4", "macaddr": "kHBphNi4", "hw_model": "HELTEC_V4", "role": "CLIENT_BASE", "public_key": "GNumMsEsSdAf+IFaiLZhWi0KXlg5EegrDtgkVqiUU1Q=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (83 bytes)

0a0921363938346438623812124d656368616e6963757320446f6d696e75731a024d34220690706984d8b8286e380c422018dba632c12c49d01ff8815a88b6615a2d0a5e583911e82b0ed82456a89453544801

Hex Analysis:

Size:	83 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.

All Receptions

All gateways that received this packet
Correlation: Using Mesh Packet ID

Reception Locations

Loading reception map...

Map shows gateway locations that received this packet. Hop counts are displayed if available.

Gateway	Time Offset	RSSI	SNR	Relay	Channel	Timestamp	Actions
Mechanicus Dominus (M4) Primary	0.000s Reference	Unknown	Unknown	`b8` M4	ShortFast	2026-03-27 21:04:17 UTC	Current
Mechanicus Dominus (M4)	-0.729s Before	Unknown	Unknown	`b8` M4	LongFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.697s Before	Unknown	Unknown	`b8` M4	LongFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.674s Before	Unknown	Unknown	`b8` M4	LongFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.652s Before	Unknown	Unknown	`b8` M4	LongFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.630s Before	Unknown	Unknown	`b8` M4	LongFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.608s Before	Unknown	Unknown	`b8` M4	LongFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.584s Before	Unknown	Unknown	`b8` M4	LongFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.560s Before	Unknown	Unknown	`b8` M4	LongFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.536s Before	Unknown	Unknown	`b8` M4	LongFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.512s Before	Unknown	Unknown	`b8` M4	LongFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.490s Before	Unknown	Unknown	`b8` M4	LongFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.466s Before	Unknown	Unknown	`b8` M4	MediumFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.442s Before	Unknown	Unknown	`b8` M4	MediumFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.421s Before	Unknown	Unknown	`b8` M4	MediumFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.397s Before	Unknown	Unknown	`b8` M4	MediumFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.372s Before	Unknown	Unknown	`b8` M4	MediumFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.348s Before	Unknown	Unknown	`b8` M4	MediumFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.324s Before	Unknown	Unknown	`b8` M4	MediumFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.302s Before	Unknown	Unknown	`b8` M4	MediumFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.280s Before	Unknown	Unknown	`b8` M4	MediumFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.258s Before	Unknown	Unknown	`b8` M4	MediumFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.237s Before	Unknown	Unknown	`b8` M4	MediumFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.212s Before	Unknown	Unknown	`b8` M4	ShortFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.187s Before	Unknown	Unknown	`b8` M4	ShortFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.164s Before	Unknown	Unknown	`b8` M4	ShortFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.140s Before	Unknown	Unknown	`b8` M4	ShortFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.119s Before	Unknown	Unknown	`b8` M4	ShortFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.097s Before	Unknown	Unknown	`b8` M4	ShortFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.074s Before	Unknown	Unknown	`b8` M4	ShortFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	-0.026s Before	Unknown	Unknown	`b8` M4	ShortFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	+0.026s After	Unknown	Unknown	`b8` M4	ShortFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	+0.050s After	Unknown	Unknown	`b8` M4	ShortFast	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	+0.077s After	Unknown	Unknown	`b8` M4	ShortTurbo	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	+0.100s After	Unknown	Unknown	`b8` M4	ShortTurbo	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	+0.124s After	Unknown	Unknown	`b8` M4	ShortTurbo	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	+0.151s After	Unknown	Unknown	`b8` M4	ShortTurbo	2026-03-27 21:04:17 UTC	View
Mechanicus Dominus (M4)	+0.173s After	Unknown	Unknown	`b8` M4	ShortTurbo	2026-03-27 21:04:18 UTC	View
Mechanicus Dominus (M4)	+0.202s After	Unknown	Unknown	`b8` M4	ShortTurbo	2026-03-27 21:04:18 UTC	View
Mechanicus Dominus (M4)	+0.235s After	Unknown	Unknown	`b8` M4	ShortTurbo	2026-03-27 21:04:18 UTC	View
Mechanicus Dominus (M4)	+0.261s After	Unknown	Unknown	`b8` M4	ShortTurbo	2026-03-27 21:04:18 UTC	View
Mechanicus Dominus (M4)	+0.288s After	Unknown	Unknown	`b8` M4	ShortTurbo	2026-03-27 21:04:18 UTC	View
Mechanicus Dominus (M4)	+0.309s After	Unknown	Unknown	`b8` M4	ShortTurbo	2026-03-27 21:04:18 UTC	View
Mechanicus Dominus (M4)	+0.332s After	Unknown	Unknown	`b8` M4	ShortTurbo	2026-03-27 21:04:18 UTC	View
Mechanicus Dominus (M4)	+0.353s After	Unknown	Unknown	`b8` M4	LongFast	2026-03-27 21:04:18 UTC	View

45

Total Receptions

1

Unique Gateways