Packet #1047444

Database ID:	1047444
Mesh Packet ID:	`0xb4a74672` Used for correlation across gateways
Timestamp:	2025-10-21 07:47:17 UTC
From Node:	Deep Dish (DEEP)
To Node:	Hyde Park AB9TO (HyPk)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	dkBase (dk)
Channel:	LongFast
RSSI:	-117 dBm
SNR:	-4.75 dBm
Hop Info:	4/4 hops Start: 4, Limit: 0
Relay Node:	`05` 🛕 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	Deep Dish
Short Name:	DEEP
Node ID:	!433c97e8
MAC Address:	SMpDPJfo
Hardware:	HELTEC_WSL_V3

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:	!dd9f2e0f
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	4 / 4

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`	`!dd9f2e0f` 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`	`1128044520` Source node ID	uint32
`to`	`861676736` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`74` bytes	size
`hop_limit`	Not set	uint32
`hop_start`	`4` Initial hop limit	uint32
`hops_taken`	`4` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-117.0` dBm Signal strength at gateway	int32
`rx_snr`	`-4.75` dB Signal quality at gateway	float
`rx_time`	`1761032873` 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`	`5` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1761032837.9763536` 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 (4 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!dd9f2e0f`
Signal Metrics:	RSSI: -117.0 dBm SNR: -4.75 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": "!433c97e8", "long_name": "Deep Dish", "short_name": "DEEP", "macaddr": "SMpDPJfo", "hw_model": "HELTEC_WSL_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!dd9f2e0f", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1128044520, "to": 861676736, "id": 3030861426, "rx_time": 1761032873, "rx_snr": -4.75, "rx_rssi": -117, "hop_limit": 0, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 5, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921343333633937653812094465657020446973681a0444454550220648ca433c97e8282c380142208e447eb36b920b675ec4eeb8fbd9a084757fe1c6fa8c09237c72917bfd557172", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!433c97e8", "long_name": "Deep Dish", "short_name": "DEEP", "macaddr": "SMpDPJfo", "hw_model": "HELTEC_WSL_V3", "role": "CLIENT_MUTE", "public_key": "jkR+s2uSC2dexO64+9mghHV/4cb6jAkjfHKRe/1VcXI=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (74 bytes)

0a0921343333633937653812094465657020446973681a0444454550220648ca433c97e8282c380142208e447eb36b920b675ec4eeb8fbd9a084757fe1c6fa8c09237c72917bfd557172

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 #1047444 Success

Packet Information

Payload Data

Decoded Data: