Packet #1898607

Database ID:	1898607
Mesh Packet ID:	`0x3a88655b` Used for correlation across gateways
Timestamp:	2026-08-11 19:17:20 UTC
From Node:	EA7 CHICLANA PC (PC)
To Node:	ATLAS BASE 📡☀🔋 (BASE)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	EA7KO_E22 (7KO/)
Channel:	SFNarrow
RSSI:	-95 dBm
SNR:	-2.0 dBm
Hop Info:	3/3 hops Start: 3, Limit: 0
Relay Node:	`e4` 37e4 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	EA7 CHICLANA PC
Short Name:	PC
Node ID:	!a1f1fefc
MAC Address:	4HKh8f78
Hardware:	129

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:	!362cca5f
Channel:	SFNarrow
Payload Type:	NODEINFO_APP
Hop Count:	3 / 3

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...

Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (3 hops)
+ 1 more...

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!362cca5f` Node ID format
`channel_id`	`SFNarrow`
`packet`	`MeshPacket` (79 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`2716991228` Source node ID	uint32
`to`	`133537898` Target node ID	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`79` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-95.0` dBm Signal strength at gateway	int32
`rx_snr`	`-2.00` dB Signal quality at gateway	float
`rx_time`	`1786475837` 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`	`32` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`228` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	Not set	uint32

MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Direct Message

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
✓ Custom channel: SFNarrow
✓ Gateway node ID tracked

Exposure Risks:

⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!362cca5f`
Signal Metrics:	RSSI: -95.0 dBm SNR: -2.00 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": "!a1f1fefc", "long_name": "EA7 CHICLANA PC", "short_name": "PC", "macaddr": "4HKh8f78", "hw_model": 129 }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 2716991228, "to": 133537898, "channel": 32, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhYTFmMWZlZmMSD0VBNyBDSElDTEFOQSBQQxoCUEMiBuByofH+/CiBAUIgCUjS2OURZTgt5uX0m6aEpDLbMJCfxETtyX0l1xIyt2ZIAA==", "want_response": true, "bitfield": 3 }, "id": 982017371, "rx_time": 1786475837, "rx_snr": -2.0, "rx_rssi": -95, "hop_start": 3, "relay_node": 228, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "SFNarrow", "gateway_id": "!362cca5f" }, "mesh_packet": { "from": 2716991228, "to": 133537898, "channel": 32, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhYTFmMWZlZmMSD0VBNyBDSElDTEFOQSBQQxoCUEMiBuByofH+/CiBAUIgCUjS2OURZTgt5uX0m6aEpDLbMJCfxETtyX0l1xIyt2ZIAA==", "want_response": true, "bitfield": 3, "parsed_payload": { "id": "!a1f1fefc", "long_name": "EA7 CHICLANA PC", "short_name": "PC", "macaddr": "4HKh8f78", "hw_model": 129, "public_key": "CUjS2OURZTgt5uX0m6aEpDLbMJCfxETtyX0l1xIyt2Y=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 982017371, "rx_time": 1786475837, "rx_snr": -2.0, "rx_rssi": -95, "hop_start": 3, "relay_node": 228, "transport_mechanism": "TRANSPORT_LORA" } }

Raw Packet Data (79 bytes)

0a09216131663166656663120f45413720434849434c414e412050431a0250432206e072a1f1fefc28810142200948d2d8e51165382de6e5f49ba684a432db30909fc444edc97d25d71232b7664800

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.

Packet #1898607 Success

Packet Information

Payload Data

Decoded Data: