Packet #1278743

Database ID:	1278743
Mesh Packet ID:	`0x3ab023bf` Used for correlation across gateways
Timestamp:	2026-06-27 11:07:22 UTC
From Node:	PT750-8 (750c)
To Node:	Nuggets 🇧🇷🇵🇹bde8-GT-8 (mfo)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	PT750-8 (750c)
Channel:	LongFast
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/4 hops Start: 4, Limit: 4
Relay Node:	`0c` 750c Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	PT750-8
Short Name:	750c
Node ID:	!1ba5750c
MAC Address:	+FsbpXUM
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:	72 bytes
Gateway:	!1ba5750c
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	0 / 4

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

Field	Value
`gateway_id`	`!1ba5750c` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (72 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`463828236` Source node ID	uint32
`to`	`1819524584` Target node ID	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`72` bytes	size
`hop_limit`	`4` Remaining hops allowed	uint32
`hop_start`	`4` 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`	`1782558440` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`BACKGROUND` Packet priority level	enum
`delayed`	Not set	enum
`channel`	`8` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`12` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	Not set	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:	`!1ba5750c`
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:	72 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!1ba5750c", "long_name": "PT750-8", "short_name": "750c", "macaddr": "+FsbpXUM", "hw_model": "HELTEC_V4" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 463828236, "to": 1819524584, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhMWJhNTc1MGMSB1BUNzUwLTgaBDc1MGMiBvhbG6V1DChuQiDdwdP5+gSqVHeg0Qclo9xkJPwl0cT5L3rks/wiyIOJN0gA", "want_response": true, "bitfield": 3 }, "id": 984622015, "rx_time": 1782558440, "hop_limit": 4, "priority": "BACKGROUND", "hop_start": 4, "relay_node": 12 }, "channel_id": "LongFast", "gateway_id": "!1ba5750c" }, "mesh_packet": { "from": 463828236, "to": 1819524584, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhMWJhNTc1MGMSB1BUNzUwLTgaBDc1MGMiBvhbG6V1DChuQiDdwdP5+gSqVHeg0Qclo9xkJPwl0cT5L3rks/wiyIOJN0gA", "want_response": true, "bitfield": 3, "parsed_payload": { "id": "!1ba5750c", "long_name": "PT750-8", "short_name": "750c", "macaddr": "+FsbpXUM", "hw_model": "HELTEC_V4", "public_key": "3cHT+foEqlR3oNEHJaPcZCT8JdHE+S965LP8IsiDiTc=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 984622015, "rx_time": 1782558440, "hop_limit": 4, "priority": "BACKGROUND", "hop_start": 4, "relay_node": 12 } }

Raw Packet Data (72 bytes)

0a09213162613537353063120750543735302d381a04373530632206f85b1ba5750c286e4220ddc1d3f9fa04aa5477a0d10725a3dc6424fc25d1c4f92f7ae4b3fc22c88389374800

Hex Analysis:

Size:	72 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 #1278743 Success

Packet Information

Payload Data

Decoded Data: