Packet #2704856

Database ID:	2704856
Mesh Packet ID:	`0x1d77528c` Used for correlation across gateways
Timestamp:	2026-10-15 00:45:34 UTC
From Node:	!3134c955 (c955)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	TELEMETRY_APP Port: 67

Gateway:	OxedBaseStation-GW (0xBS)
Channel:	NarrowFast
RSSI:	-108 dBm
SNR:	-6.5 dBm
Hop Info:	4/5 hops Start: 5, Limit: 1
Relay Node:	`79` Last byte of the last hop that relayed this packet

Temperature:	18.4°C
Humidity:	43.0%
Pressure:	1005.4 hPa

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:	22 bytes
Gateway:	!ca19b6ba
Channel:	NarrowFast
Payload Type:	TELEMETRY_APP
Hop Count:	4 / 5

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: NarrowFast
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!ca19b6ba` Node ID format
`channel_id`	`NarrowFast`
`packet`	`MeshPacket` (22 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`825542997` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`TELEMETRY_APP` TELEMETRY_APP	enum
`decoded.payload_length`	`22` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`4` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-108.0` dBm Signal strength at gateway	int32
`rx_snr`	`-6.50` dB Signal quality at gateway	float
`rx_time`	`1792025134` 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`	`21` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`121` 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: Broadcast

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: NarrowFast
✓ 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:	`!ca19b6ba`
Signal Metrics:	RSSI: -108.0 dBm SNR: -6.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	TELEMETRY_APP
Size:	22 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "time": 1792025130, "environment_metrics": { "temperature": 18.45, "relative_humidity": 42.98047, "barometric_pressure": 1005.37646 } }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 825542997, "to": 4294967295, "channel": 21, "decoded": { "portnum": "TELEMETRY_APP", "payload": "DSoi0GoaDw2amZNBFQDsK0IdGFh7RA==", "bitfield": 1 }, "id": 494359180, "rx_time": 1792025134, "rx_snr": -6.5, "hop_limit": 1, "rx_rssi": -108, "hop_start": 5, "relay_node": 121, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "NarrowFast", "gateway_id": "!ca19b6ba" }, "mesh_packet": { "from": 825542997, "to": 4294967295, "channel": 21, "decoded": { "portnum": "TELEMETRY_APP", "payload": "DSoi0GoaDw2amZNBFQDsK0IdGFh7RA==", "bitfield": 1, "parsed_payload": { "time": 1792025130, "environment_metrics": { "temperature": 18.45, "relative_humidity": 42.98047, "barometric_pressure": 1005.37646 }, "type": "protobuf", "portnum": "TELEMETRY_APP", "message_class": "Telemetry" } }, "id": 494359180, "rx_time": 1792025134, "rx_snr": -6.5, "hop_limit": 1, "rx_rssi": -108, "hop_start": 5, "relay_node": 121, "transport_mechanism": "TRANSPORT_LORA" } }

Raw Packet Data (22 bytes)

0d2a22d06a1a0f0d9a9993411500ec2b421d18587b44

Hex Analysis:

Size:	22 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 #2704856 Success

Packet Information

Payload Data

Decoded Data:

Environment Metrics: