Packet #18383452

Packet Information

Database ID:	18383452
Mesh Packet ID:	`0xe81403f6` Used for correlation across gateways
Timestamp:	2026-06-10 02:05:48 UTC
From Node:	QS MSK LOSINKA (QS)
To Node:	!ffffffff (ffff)
Success:	Failed
Protocol:	TELEMETRY_APP Port: 67

Gateway:	SYSXX YGW8 (SXY8)
Channel:	MediumFast
RSSI:	Unknown
SNR:	10.75 dBm
Hop Info:	4/7 hops Start: 7, Limit: 3

Payload Data

Protocol: TELEMETRY_APP

Size: 28 bytes

Decoded: No

Telemetry decode error: Error parsing message with type 'meshtastic.protobuf.Telemetry'

Text Content:

0f419c2a6a12450d469dc37d78401d749a204025057c433f28dfab01

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:	28 bytes
Gateway:	!efffff02
Channel:	MediumFast
Payload Type:	TELEMETRY_APP
Hop Count:	4 / 7

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 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`	`!efffff02` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (28 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2997401711` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`67` TELEMETRY_APP	enum
`decoded.payload_length`	`28` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`4` Calculated: hop_start - hop_limit	derived
`rx_rssi`	Not set	int32
`rx_snr`	`10.75` dB Signal quality at gateway	float
`rx_time`	`1781046348` 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`	`136` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1781046348.9662623` 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: MediumFast
✓ 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:	`!efffff02`
Signal Metrics:	SNR: 10.75 dB

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!efffff02", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2997401711, "to": 4294967295, "id": 3893625846, "rx_time": 1781046348, "rx_snr": 10.75, "rx_rssi": 0, "hop_limit": 3, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 136, "tx_after": 0, "decoded": { "portnum": 67, "payload": "0f419c2a6a12450d469dc37d78401d749a204025057c433f28dfab01", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "raw_bytes": "0f419c2a6a12450d469dc37d78401d749a204025057c433f28dfab01", "type": "decode_error", "portnum": "TELEMETRY_APP", "decode_error": "Telemetry decode error: Error parsing message with type 'meshtastic.protobuf.Telemetry'" } } } }

Raw Packet Data (28 bytes)