Packet #27862061

Database ID:	27862061
Mesh Packet ID:	`0xac49cdd8` Used for correlation across gateways
Timestamp:	2025-12-15 17:28:50 UTC
From Node:	Radio Club Foronda R2 (RCF2)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Macán 001 (MCN1)
Channel:	LongFast
RSSI:	-107 dBm
SNR:	-18.25 dBm
Hop Info:	3/7 hops Start: 7, Limit: 4
Relay Node:	`de` Last byte of the last hop that relayed this packet

Long Name:	Radio Club Foronda R2
Short Name:	RCF2
Node ID:	!12b10734
MAC Address:	AEsSsQc0
Hardware:	TLORA_V2_1_1P6

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:	88 bytes
Gateway:	!b576da9d
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	3 / 7

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!b576da9d` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (88 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`313591604` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`88` bytes	size
`hop_limit`	`4` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`3` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-107.0` dBm Signal strength at gateway	int32
`rx_snr`	`-18.25` dB Signal quality at gateway	float
`rx_time`	`1765819733` 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`	`222` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1765819730.956018` 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

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (3 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!b576da9d`
Signal Metrics:	RSSI: -107.0 dBm SNR: -18.25 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	88 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!12b10734", "long_name": "Radio Club Foronda R2", "short_name": "RCF2", "macaddr": "AEsSsQc0", "hw_model": "TLORA_V2_1_1P6" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!b576da9d", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 313591604, "to": 4294967295, "id": 2890517976, "rx_time": 1765819733, "rx_snr": -18.25, "rx_rssi": -107, "hop_limit": 4, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 222, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092131326231303733341215526164696f20436c756220466f726f6e64612052321a04524346322206004b12b1073428033802422044ccf9d7353de05467581e90ebd41e61f26243cff461886c3324c442dd1c92524801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!12b10734", "long_name": "Radio Club Foronda R2", "short_name": "RCF2", "macaddr": "AEsSsQc0", "hw_model": "TLORA_V2_1_1P6", "role": "ROUTER", "public_key": "RMz51zU94FRnWB6Q69QeYfJiQ8/0YYhsMyTEQt0cklI=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (88 bytes)

0a092131326231303733341215526164696f20436c756220466f726f6e64612052321a04524346322206004b12b1073428033802422044ccf9d7353de05467581e90ebd41e61f26243cff461886c3324c442dd1c92524801

Hex Analysis:

Size:	88 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 #27862061 Success

Packet Information

Payload Data

Decoded Data: