Packet #316960

Database ID:	316960
Mesh Packet ID:	`0xa5f99aff` Used for correlation across gateways
Timestamp:	2026-05-15 03:13:43 UTC
From Node:	SVMesh.net Cornwall Router (SVMR)
To Node:	!abf84e90 (4e90)
Success:	Processed
Protocol:	TELEMETRY_APP Port: 67

Gateway:	wi3w-base (w00b)
Channel:	LongFast
RSSI:	-106 dBm
SNR:	-12.75 dBm
Hop Info:	6/6 hops Start: 6, Limit: 0
Relay Node:	`08` jyd2 , WM87 , n3hz , 9008 , ZR0 , 5941 , GinH , 2708 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Battery:	101%
Channel Usage:	31.3%
Air Util TX:	5.7%

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:	!24da43f9
Channel:	LongFast
Payload Type:	TELEMETRY_APP
Hop Count:	6 / 6

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 1 more...

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 2 more...

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!24da43f9` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (28 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`2733357948` Source node ID	uint32
`to`	`2885176976` Target node ID	uint32
`decoded.portnum`	`TELEMETRY_APP` TELEMETRY_APP	enum
`decoded.payload_length`	`28` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`6` Initial hop limit	uint32
`hops_taken`	`6` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-106.0` dBm Signal strength at gateway	int32
`rx_snr`	`-12.75` dB Signal quality at gateway	float
`rx_time`	`1778814815` 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`	`8` 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
✓ Gateway node ID tracked

Exposure Risks:

⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (6 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!24da43f9`
Signal Metrics:	RSSI: -106.0 dBm SNR: -12.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	TELEMETRY_APP
Size:	28 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "time": 1778814678, "device_metrics": { "battery_level": 101, "voltage": 0.0, "channel_utilization": 31.348333, "air_util_tx": 5.7138057, "uptime_seconds": 282011 } }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 2733357948, "to": 2885176976, "decoded": { "portnum": "TELEMETRY_APP", "payload": "DdaOBmoSFQhlFQAAAAAdY8n6QSV/17ZAKJubEQ==", "request_id": 156169097, "bitfield": 1 }, "id": 2784598783, "rx_time": 1778814815, "rx_snr": -12.75, "rx_rssi": -106, "hop_start": 6, "relay_node": 8, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "LongFast", "gateway_id": "!24da43f9" }, "mesh_packet": { "from": 2733357948, "to": 2885176976, "decoded": { "portnum": "TELEMETRY_APP", "payload": "DdaOBmoSFQhlFQAAAAAdY8n6QSV/17ZAKJubEQ==", "request_id": 156169097, "bitfield": 1, "parsed_payload": { "time": 1778814678, "device_metrics": { "battery_level": 101, "voltage": 0.0, "channel_utilization": 31.348333, "air_util_tx": 5.7138057, "uptime_seconds": 282011 }, "type": "protobuf", "portnum": "TELEMETRY_APP", "message_class": "Telemetry" } }, "id": 2784598783, "rx_time": 1778814815, "rx_snr": -12.75, "rx_rssi": -106, "hop_start": 6, "relay_node": 8, "transport_mechanism": "TRANSPORT_LORA" } }

Raw Packet Data (28 bytes)

0dd68e066a1215086515000000001d63c9fa41257fd7b640289b9b11

Hex Analysis:

Size:	28 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 #316960 Success

Packet Information

Payload Data

Decoded Data:

Device Metrics: