Packet #2032323

Database ID:	2032323
Mesh Packet ID:	`0x28226c74` Used for correlation across gateways
Timestamp:	2025-11-13 21:27:19 UTC
From Node:	BDP1 - Portable HT v4 (BDP1)
To Node:	!43589f28 (9f28)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	BDP1 - Portable HT v4 (BDP1)
Channel:	LongFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/7 hops Start: 7, Limit: 7
Relay Node:	`fc` BDP1 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	BDP1 - Portable HT v4
Short Name:	BDP1
Node ID:	!b2a6fffc
MAC Address:	gPGypv/8
Hardware:	HELTEC_V4

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:	86 bytes
Gateway:	!b2a6fffc
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 7

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!b2a6fffc` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (86 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2997288956` Source node ID	uint32
`to`	`1129881384` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`86` bytes	size
`hop_limit`	`7` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	Not set	int32
`rx_snr`	Not set	float
`rx_time`	`1763069319` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`10` Packet priority level	enum
`delayed`	Not set	enum
`channel`	Not set	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`252` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1763069239.207698` 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
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers

MQTT-Specific Fields

Gateway ID:	`!b2a6fffc`
Zero Hop Policy:	Enabled Direct gateway connection

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	86 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!b2a6fffc", "long_name": "BDP1 - Portable HT v4", "short_name": "BDP1", "macaddr": "gPGypv/8", "hw_model": "HELTEC_V4" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!b2a6fffc", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2997288956, "to": 1129881384, "id": 673344628, "rx_time": 1763069319, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 7, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 10, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 252, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216232613666666663121542445031202d20506f727461626c652048542076341a0442445031220680f1b2a6fffc286e422011367fc8a969b5edac6f673d90fa239197acc7e63a9a34474b0a07b7fbd5476b4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!b2a6fffc", "long_name": "BDP1 - Portable HT v4", "short_name": "BDP1", "macaddr": "gPGypv/8", "hw_model": "HELTEC_V4", "public_key": "ETZ/yKlpte2sb2c9kPojkZesx+Y6mjRHSwoHt/vVR2s=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (86 bytes)

0a09216232613666666663121542445031202d20506f727461626c652048542076341a0442445031220680f1b2a6fffc286e422011367fc8a969b5edac6f673d90fa239197acc7e63a9a34474b0a07b7fbd5476b4800

Hex Analysis:

Size:	86 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 #2032323 Success

Packet Information

Payload Data

Decoded Data: