Packet #3658087

Packet Information

Database ID:	3658087
Mesh Packet ID:	`0x430e03ca` Used for correlation across gateways
Timestamp:	2025-07-13 21:43:09 UTC
From Node:	Link 433-868 🤘 (Link)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	RANGE_TEST_APP Port: 66

Gateway:	POC 2 (POC2)
Channel:	LongFast
RSSI:	-143 dBm
SNR:	-15.75 dBm
Hop Info:	0/0 hops Start: 0, Limit: 0

Payload Data

Protocol: RANGE_TEST_APP

Size: 6 bytes

Decoded: No

No decoder available for RANGE_TEST_APP

Text Content:

736571203939

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:	6 bytes
Gateway:	!bba88078
Channel:	LongFast
Payload Type:	RANGE_TEST_APP
Hop Count:	Unknown / Unknown

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
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!bba88078` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (6 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2081119218` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`66` RANGE_TEST_APP	enum
`decoded.payload_length`	`6` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	Not set	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-143.0` dBm Signal strength at gateway	int32
`rx_snr`	`-15.75` dB Signal quality at gateway	float
`rx_time`	`1752442987` 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`	Not set	uint32
`tx_after`	Not set	uint32
`timestamp`	`1752442989.1233578` 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
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!bba88078`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -143.0 dBm SNR: -15.75 dB

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!bba88078", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2081119218, "to": 4294967295, "id": 1124991946, "rx_time": 1752442987, "rx_snr": -15.75, "rx_rssi": -143, "hop_limit": 0, "hop_start": 0, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 66, "payload": "736571203939", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "raw_bytes": "736571203939", "type": "unknown_or_custom", "portnum": "RANGE_TEST_APP", "note": "No decoder available for RANGE_TEST_APP" } } } }

Raw Packet Data (6 bytes)