Packet #2727074

Packet Information

Database ID:	2727074
Mesh Packet ID:	`0xdc7be15f` Used for correlation across gateways
Timestamp:	2025-07-03 21:37:51 UTC
From Node:	EA4HDZ MdlS🗼 (AERO)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	TEXT_MESSAGE_APP Port: 1

Gateway:	EA4HDZ MdlS🗼 (AERO)
Channel:	LongFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/4 hops Start: 4, Limit: 4

Payload Data

Protocol: TEXT_MESSAGE_APP

Size: 32 bytes

Decoded: Yes

Text Content:

Tormenta eléctrica en la sierra

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:	32 bytes
Gateway:	!b03cab6c
Channel:	LongFast
Payload Type:	TEXT_MESSAGE_APP
Hop Count:	Unknown / 4

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!b03cab6c` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (32 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2956766060` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`1` TEXT_MESSAGE_APP	enum
`decoded.payload_length`	`32` bytes	size
`hop_limit`	`4` Remaining hops allowed	uint32
`hop_start`	`4` 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`	`1751578670` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`100` 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`	`108` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1751578671.9441247` 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
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers

MQTT-Specific Fields

Gateway ID:	`!b03cab6c`
Zero Hop Policy:	Enabled Direct gateway connection

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!b03cab6c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2956766060, "to": 4294967295, "id": 3699106143, "rx_time": 1751578670, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 4, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 100, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 108, "tx_after": 0, "decoded": { "portnum": 1, "payload": "546f726d656e746120656cc3a963747269636120656e206c6120736965727261", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "text": "Tormenta eléctrica en la sierra", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } } } }

Raw Packet Data (32 bytes)

546f726d656e746120656cc3a963747269636120656e206c6120736965727261

Hex Analysis:

Size:	32 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	Channel	Timestamp	Actions
EA4HDZ MdlS🗼 (AERO) Primary	0.000s Reference	Unknown	Unknown	0	LongFast	2025-07-03 21:37:51	Current
Venturada base🗼🌐 (Vb)	+0.891s After	-110.0 dBm	-10.50 dB	0	LongFast	2025-07-03 21:37:52	View
Perseo 🗼 (nvm1)	+2.060s After	-97.0 dBm	-1.75 dB	1	LongFast	2025-07-03 21:37:54	View
Venturada2🗼🌐☀️ (Vb2)	+2.116s After	-92.0 dBm	5.00 dB	1	LongFast	2025-07-03 21:37:54	View
SkG@Home 🗼🌐 (SkGH)	+2.443s After	-104.0 dBm	-2.50 dB	1	LongFast	2025-07-03 21:37:54	View
Wake Up, Neo...📡 (NEO)	+2.879s After	-109.0 dBm	-13.25 dB	2	LongFast	2025-07-03 21:37:54	View
GRN1-Base📡🌐 (GRN1)	+3.222s After	-105.0 dBm	1.50 dB	2	LongFast	2025-07-03 21:37:55	View
[TLGO] Base 📡🌐 (TLG0)	+4.543s After	-117.0 dBm	-14.25 dB	2	LongFast	2025-07-03 21:37:56	View
Mec Rocket Meco (MRM)	+5.767s After	-121.0 dBm	-19.50 dB	4	LongFast	2025-07-03 21:37:57	View
Meshtastic_a7df (a7df)	+7.398s After	-128.0 dBm	-18.00 dB	3	LongFast	2025-07-03 21:37:59	View
Adri 📶 (adri)	+7.525s After	-108.0 dBm	-12.75 dB	3	LongFast	2025-07-03 21:37:59	View
Meshtastic 870c📡🌐 (870c)	+8.091s After	-93.0 dBm	4.25 dB	4	LongFast	2025-07-03 21:38:00	View
Lgn6_299b (Lgn6)	+9.604s After	-88.0 dBm	6.25 dB	4	LongFast	2025-07-03 21:38:01	View

13

Total Receptions

13

Unique Gateways

Packet #2727074 Success