Packet #3716744

Database ID:	3716744
Mesh Packet ID:	`0x6e1d8c1b` Used for correlation across gateways
Timestamp:	2025-07-14 11:50:47 UTC
From Node:	KIFO (14f1)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Venturada base🗼🌐 (Vb)
Channel:	LongFast
RSSI:	-82 dBm
SNR:	7.0 dBm
Hop Info:	1/3 hops Start: 3, Limit: 2

Long Name:	KIFO
Short Name:	KIFO
Node ID:	!e5b714f1
MAC Address:	+HjltxTx
Hardware:	HELTEC_MESH_NODE_T114

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:	67 bytes
Gateway:	!ffaf8270
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	1 / 3

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`	`!ffaf8270` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (67 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3853980913` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`67` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-82.0` dBm Signal strength at gateway	int32
`rx_snr`	`7.00` dB Signal quality at gateway	float
`rx_time`	`1752493846` 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`	`176` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1752493847.7889712` 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 (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!ffaf8270`
Signal Metrics:	RSSI: -82.0 dBm SNR: 7.00 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	67 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!e5b714f1", "long_name": "KIFO", "short_name": "KIFO", "macaddr": "+HjltxTx", "hw_model": "HELTEC_MESH_NODE_T114" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!ffaf8270", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3853980913, "to": 4294967295, "id": 1847430171, "rx_time": 1752493846, "rx_snr": 7.0, "rx_rssi": -82, "hop_limit": 2, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 176, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921653562373134663112044b49464f1a044b49464f2206f878e5b714f128454220ac65850a248c6ad0a539ffb3d34a700692b9dd53ef8fbda5ba69775e628eb076", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!e5b714f1", "long_name": "KIFO", "short_name": "KIFO", "macaddr": "+HjltxTx", "hw_model": "HELTEC_MESH_NODE_T114", "public_key": "rGWFCiSMatClOf+z00pwBpK53VPvj72luml3XmKOsHY=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (67 bytes)

0a0921653562373134663112044b49464f1a044b49464f2206f878e5b714f128454220ac65850a248c6ad0a539ffb3d34a700692b9dd53ef8fbda5ba69775e628eb076

Hex Analysis:

Size:	67 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 #3716744 Success

Packet Information

Payload Data

Decoded Data: