Packet #40283657 Success

NODEINFO_APP packet from Zap North 3b1c (ZapN) to !ffffffff

Total Receptions

Unique Gateways

Hop Count

Payload Bytes

Packet Information

Database ID:	40283657
Mesh Packet ID:	`0xd845f0fb` Used for correlation across gateways
Timestamp:	2026-05-18 06:15:26 UTC
From Node:	Zap North 3b1c (ZapN)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	MoeTD (Moe)
Channel:	LongFast
RSSI:	-124 dBm
SNR:	-15.75 dBm
Hop Info:	2/3 hops Start: 3, Limit: 1
Relay Node:	`ef` crxb 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: 79 bytes

Decoded: Yes

Decoded Data:

Long Name:	Zap North 3b1c
Short Name:	ZapN
Node ID:	!90963b1c
MAC Address:	6AaQljsc
Hardware:	TLORA_T3_S3

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:	79 bytes
Gateway:	!4ed3691c
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	2 / 3

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!4ed3691c` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (79 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2425764636` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`79` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-124.0` dBm Signal strength at gateway	int32
`rx_snr`	`-15.75` dB Signal quality at gateway	float
`rx_time`	`1779084925` 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`	`239` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1779084926.404711` 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)
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!4ed3691c`
Signal Metrics:	RSSI: -124.0 dBm SNR: -15.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	79 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!90963b1c", "long_name": "Zap North 3b1c", "short_name": "ZapN", "macaddr": "6AaQljsc", "hw_model": "TLORA_T3_S3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!4ed3691c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2425764636, "to": 4294967295, "id": 3628462331, "rx_time": 1779084925, "rx_snr": -15.75, "rx_rssi": -124, "hop_limit": 1, "hop_start": 3, "via_mqtt": false, "want_ack": false, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 239, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213930393633623163120e5a6170204e6f72746820336231631a045a61704e2206e80690963b1c28104220aba7c8075b214ef7d788a21e4b83540d773e4585d61dbfee6eea33b30eecb1664800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!90963b1c", "long_name": "Zap North 3b1c", "short_name": "ZapN", "macaddr": "6AaQljsc", "hw_model": "TLORA_T3_S3", "public_key": "q6fIB1shTvfXiKIeS4NUDXc+RYXWHb/ubuozsw7ssWY=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (79 bytes)

0a09213930393633623163120e5a6170204e6f72746820336231631a045a61704e2206e80690963b1c28104220aba7c8075b214ef7d788a21e4b83540d773e4585d61dbfee6eea33b30eecb1664800

Hex Analysis:

Size:	79 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	Hops	Relay	Channel	Timestamp	Actions
MoeTD (Moe) Primary	0.000s Reference	-124.0 dBm	-15.75 dB	2	`ef` crxb	LongFast	2026-05-18 06:15:26 UTC	Current
MoeTD (Moe)	-0.404s Before	-124.0 dBm	-15.75 dB	2	`ef` crxb	LongFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	-0.372s Before	-124.0 dBm	-15.75 dB	2	`ef` crxb	LongFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	-0.333s Before	-124.0 dBm	-15.75 dB	2	`ef` crxb	LongFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	-0.263s Before	-124.0 dBm	-15.75 dB	2	`ef` crxb	LongFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	-0.221s Before	-124.0 dBm	-15.75 dB	2	`ef` crxb	LongFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	-0.183s Before	-124.0 dBm	-15.75 dB	2	`ef` crxb	LongFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	-0.134s Before	-124.0 dBm	-15.75 dB	2	`ef` crxb	LongFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	-0.101s Before	-124.0 dBm	-15.75 dB	2	`ef` crxb	LongFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	-0.046s Before	-124.0 dBm	-15.75 dB	2	`ef` crxb	LongFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	+0.097s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	LongFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	+0.140s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	MediumFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	+0.193s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	MediumFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	+0.220s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	MediumFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	+0.284s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	MediumFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	+0.348s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	MediumFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	+0.383s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	MediumFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	+0.422s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	MediumFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	+0.452s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	MediumFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	+0.495s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	MediumFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	+0.523s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	MediumFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	+0.557s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	MediumFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	+0.593s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortFast	2026-05-18 06:15:26 UTC	View
MoeTD (Moe)	+0.672s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortFast	2026-05-18 06:15:27 UTC	View
MoeTD (Moe)	+0.710s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortFast	2026-05-18 06:15:27 UTC	View
MoeTD (Moe)	+0.744s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortFast	2026-05-18 06:15:27 UTC	View
MoeTD (Moe)	+0.837s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortFast	2026-05-18 06:15:27 UTC	View
MoeTD (Moe)	+0.898s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortFast	2026-05-18 06:15:27 UTC	View
MoeTD (Moe)	+0.936s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortFast	2026-05-18 06:15:27 UTC	View
MoeTD (Moe)	+1.054s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortFast	2026-05-18 06:15:27 UTC	View
MoeTD (Moe)	+1.090s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortFast	2026-05-18 06:15:27 UTC	View
MoeTD (Moe)	+1.140s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortFast	2026-05-18 06:15:27 UTC	View
MoeTD (Moe)	+1.172s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortFast	2026-05-18 06:15:27 UTC	View
MoeTD (Moe)	+1.243s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortTurbo	2026-05-18 06:15:27 UTC	View
MoeTD (Moe)	+1.340s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortTurbo	2026-05-18 06:15:27 UTC	View
MoeTD (Moe)	+1.389s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortTurbo	2026-05-18 06:15:27 UTC	View
MoeTD (Moe)	+1.452s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortTurbo	2026-05-18 06:15:27 UTC	View
MoeTD (Moe)	+1.501s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortTurbo	2026-05-18 06:15:27 UTC	View
MoeTD (Moe)	+1.541s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortTurbo	2026-05-18 06:15:27 UTC	View
MoeTD (Moe)	+1.586s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortTurbo	2026-05-18 06:15:27 UTC	View
MoeTD (Moe)	+1.626s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortTurbo	2026-05-18 06:15:28 UTC	View
MoeTD (Moe)	+1.664s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortTurbo	2026-05-18 06:15:28 UTC	View
MoeTD (Moe)	+1.692s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortTurbo	2026-05-18 06:15:28 UTC	View
MoeTD (Moe)	+1.719s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	ShortTurbo	2026-05-18 06:15:28 UTC	View
MoeTD (Moe)	+1.751s After	-124.0 dBm	-15.75 dB	2	`ef` crxb	LongFast	2026-05-18 06:15:28 UTC	View

45

Total Receptions

1

Unique Gateways