Packet #2617882

Packet Information

Database ID:	2617882
Mesh Packet ID:	`0x31b5faaf` Used for correlation across gateways
Timestamp:	2026-10-06 06:00:33 UTC
From Node:	MeteoVillena_02 🗼⛈️ (SISA)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	SERIAL_APP Port: 64

Gateway:	Dummy 👻 (DMMY)
Channel:	SFNarrow
RSSI:	-107 dBm
SNR:	-7.5 dBm
Hop Info:	5/5 hops Start: 5, Limit: 0
Relay Node:	`9a` Last byte of the last hop that relayed this packet

Payload Data

Protocol: SERIAL_APP

Size: 129 bytes

Decoded: No

No decoder available for SERIAL_APP

Text Content:

5650322c57443137342c5753302e332c57534d302e392c57536d302e302c5747302e392c57474d302e392c57476d302e392c5431352e392c544d31352e392c546d31352e382c4838312c484d38332c486d38302c5231362e362c55562c55564d2c55566d2c4c58302e362c4c584d312e382c4c586d302e302c502c504d2c506d2c

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:	129 bytes
Gateway:	!266c0330
Channel:	SFNarrow
Payload Type:	SERIAL_APP
Hop Count:	5 / 5

Privacy Summary

Exposure Level:
Broadcast

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

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

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!266c0330` Node ID format
`channel_id`	`SFNarrow`
`packet`	`MeshPacket` (129 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`2715020820` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`SERIAL_APP` SERIAL_APP	enum
`decoded.payload_length`	`129` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`5` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-107.0` dBm Signal strength at gateway	int32
`rx_snr`	`-7.50` dB Signal quality at gateway	float
`rx_time`	`1791266429` 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`	`154` 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: SFNarrow
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (5 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!266c0330`
Signal Metrics:	RSSI: -107.0 dBm SNR: -7.50 dB

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 2715020820, "to": 4294967295, "channel": 32, "decoded": { "portnum": "SERIAL_APP", "payload": "VlAyLFdEMTc0LFdTMC4zLFdTTTAuOSxXU20wLjAsV0cwLjksV0dNMC45LFdHbTAuOSxUMTUuOSxUTTE1LjksVG0xNS44LEg4MSxITTgzLEhtODAsUjE2LjYsVVYsVVZNLFVWbSxMWDAuNixMWE0xLjgsTFhtMC4wLFAsUE0sUG0s", "bitfield": 1 }, "id": 834009775, "rx_time": 1791266429, "rx_snr": -7.5, "rx_rssi": -107, "hop_start": 5, "relay_node": 154, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "SFNarrow", "gateway_id": "!266c0330" }, "mesh_packet": { "from": 2715020820, "to": 4294967295, "channel": 32, "decoded": { "portnum": "SERIAL_APP", "payload": "VlAyLFdEMTc0LFdTMC4zLFdTTTAuOSxXU20wLjAsV0cwLjksV0dNMC45LFdHbTAuOSxUMTUuOSxUTTE1LjksVG0xNS44LEg4MSxITTgzLEhtODAsUjE2LjYsVVYsVVZNLFVWbSxMWDAuNixMWE0xLjgsTFhtMC4wLFAsUE0sUG0s", "bitfield": 1, "parsed_payload": { "raw_bytes": "5650322c57443137342c5753302e332c57534d302e392c57536d302e302c5747302e392c57474d302e392c57476d302e392c5431352e392c544d31352e392c546d31352e382c4838312c484d38332c486d38302c5231362e362c55562c55564d2c55566d2c4c58302e362c4c584d312e382c4c586d302e302c502c504d2c506d2c", "type": "unknown_or_custom", "portnum": "SERIAL_APP", "note": "No decoder available for SERIAL_APP" } }, "id": 834009775, "rx_time": 1791266429, "rx_snr": -7.5, "rx_rssi": -107, "hop_start": 5, "relay_node": 154, "transport_mechanism": "TRANSPORT_LORA" } }

Raw Packet Data (129 bytes)

Hex Analysis:

Size:	129 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.

All Receptions

All gateways that received this packet
Correlation: Using Mesh Packet ID

Gateway	Time Offset	RSSI	SNR	Hops	Relay	Channel	Timestamp	Actions
Dummy 👻 (DMMY) Primary	0.000s Reference	-107.0 dBm	-7.50 dB	5	`9a`	SFNarrow	2026-10-06 06:00:33 UTC	Current
No other receptions found within ±2 seconds

1

Total Receptions

1

Unique Gateways

Packet #2617882 Success