Packet #9691935

Packet Information

Database ID:	9691935
Mesh Packet ID:	`0xb5590eb1` Used for correlation across gateways
Timestamp:	2025-09-08 15:15:08 UTC
From Node:	!4d7b5fe5 (5fe5)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	TEXT_MESSAGE_APP Port: 1

Gateway:	Zgz_Romareda_CL-868 (Zgz)
Channel:	Zaragoza
RSSI:	-111 dBm
SNR:	-5.75 dBm
Hop Info:	4/4 hops Start: 4, Limit: 0

Payload Data

Protocol: TEXT_MESSAGE_APP

Size: 191 bytes

Decoded: Yes

Text Content:

Bueno, ahora sí necesito hacer ping de verdad. He instalado la antena en el balcón y "creo" que ya funciona. Me recibe alguien en directo (tengo desconectado el MQTT para ser más realista)

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:	191 bytes
Gateway:	!33691d30
Channel:	Zaragoza
Payload Type:	TEXT_MESSAGE_APP
Hop Count:	4 / 4

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: Zaragoza
+ 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`	`!33691d30` Node ID format
`channel_id`	`Zaragoza`
`packet`	`MeshPacket` (191 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1299931109` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`1` TEXT_MESSAGE_APP	enum
`decoded.payload_length`	`191` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`4` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-111.0` dBm Signal strength at gateway	int32
`rx_snr`	`-5.75` dB Signal quality at gateway	float
`rx_time`	`1757344504` 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`	`204` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1757344508.1248426` 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: Zaragoza
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (4 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!33691d30`
Signal Metrics:	RSSI: -111.0 dBm SNR: -5.75 dB

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!33691d30", "channel_id": "Zaragoza", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1299931109, "to": 4294967295, "id": 3042512561, "rx_time": 1757344504, "rx_snr": -5.75, "rx_rssi": -111, "hop_limit": 0, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 204, "tx_after": 0, "decoded": { "portnum": 1, "payload": "4275656e6f2c2061686f72612073c3ad206e6563657369746f2068616365722070696e67206465207665726461642e20486520696e7374616c61646f206c6120616e74656e6120656e20656c2062616c63c3b36e207920226372656f22207175652079612066756e63696f6e612e204d652072656369626520616c677569656e20656e206469726563746f202874656e676f20646573636f6e65637461646f20656c204d515454207061726120736572206dc3a173207265616c6973746129", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "text": "Bueno, ahora sí necesito hacer ping de verdad. He instalado la antena en el balcón y \"creo\" que ya funciona. Me recibe alguien en directo (tengo desconectado el MQTT para ser más realista)", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } } } }

Raw Packet Data (191 bytes)

4275656e6f2c2061686f72612073c3ad206e6563657369746f2068616365722070696e67206465207665726461642e20486520696e7374616c61646f206c6120616e74656e6120656e20656c2062616c63c3b36e207920226372656f22207175652079612066756e63696f6e612e204d652072656369626520616c677569656e20656e206469726563746f202874656e676f20646573636f6e65637461646f20656c204d515454207061726120736572206dc3a173207265616c6973746129

Hex Analysis:

Size:	191 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

Gateway	Time Offset	RSSI	SNR	Hops	Channel	Timestamp	Actions
Zgz_Romareda_CL-868 (Zgz) Primary	0.000s Reference	-111.0 dBm	-5.75 dB	4	Zaragoza	2025-09-08 15:15:08	Current
No other receptions found within ±2 seconds

1

Total Receptions

1

Unique Gateways

Packet #9691935 Success