Packet #2886321

Database ID:	2886321
Mesh Packet ID:	`0x43f52a27` Used for correlation across gateways
Timestamp:	2025-08-18 00:13:48 UTC
From Node:	Static b504 (b504)
To Node:	PA2PF (Paul)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Destiny Long 🏠🔌🌐🛰️ (Long)
Channel:	LongFast
RSSI:	-133 dBm
SNR:	-8.5 dBm
Hop Info:	2/3 hops Start: 3, Limit: 1

Long Name:	Static b504
Short Name:	b504
Node ID:	!9196b504
MAC Address:	UAKRlrUE
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:	74 bytes
Gateway:	!c0c3106c
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	2 / 3

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

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!c0c3106c` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (74 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2442573060` Source node ID	uint32
`to`	`1128007480` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`74` bytes	size
`hop_limit`	`1` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-133.0` dBm Signal strength at gateway	int32
`rx_snr`	`-8.50` dB Signal quality at gateway	float
`rx_time`	`1755468827` 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`	Not set	uint32
`tx_after`	Not set	uint32
`timestamp`	`1755468828.9073377` Unix timestamp	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 (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!c0c3106c`
Signal Metrics:	RSSI: -133.0 dBm SNR: -8.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	74 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!9196b504", "long_name": "Static b504", "short_name": "b504", "macaddr": "UAKRlrUE", "hw_model": "TLORA_V2_1_1P6" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!c0c3106c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2442573060, "to": 1128007480, "id": 1140140583, "rx_time": 1755468827, "rx_snr": -8.5, "rx_rssi": -133, "hop_limit": 1, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213931393662353034120b53746174696320623530341a0462353034220650029196b50428034220b471bcfd8fbca9477a562f73dd42c59170297773d833408d8e7fa658dffda410", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!9196b504", "long_name": "Static b504", "short_name": "b504", "macaddr": "UAKRlrUE", "hw_model": "TLORA_V2_1_1P6", "public_key": "tHG8/Y+8qUd6Vi9z3ULFkXApd3PYM0CNjn+mWN/9pBA=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (74 bytes)

0a09213931393662353034120b53746174696320623530341a0462353034220650029196b50428034220b471bcfd8fbca9477a562f73dd42c59170297773d833408d8e7fa658dffda410

Hex Analysis:

Size:	74 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 #2886321 Success

Packet Information

Payload Data

Decoded Data: