Packet #324631

Database ID:	324631
Mesh Packet ID:	`0x1ea963c7` Used for correlation across gateways
Timestamp:	2026-05-17 13:16:07 UTC
From Node:	CD3APS WIP (WIP1)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	CD3APS V4 (APV4)
Channel:	vecinos
RSSI:	Unknown
SNR:	5.75 dBm
Hop Info:	0/3 hops Start: 3, Limit: 3
Relay Node:	`48` WIP1 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	CD3APS WIP
Short Name:	WIP1
Node ID:	!4ff78748
MAC Address:	+oVP94dI
Hardware:	XIAO_NRF52_KIT

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:	75 bytes
Gateway:	!69852dec
Channel:	vecinos
Payload Type:	NODEINFO_APP
Hop Count:	0 / 3

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: vecinos
+ 2 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 1 more...

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!69852dec` Node ID format
`channel_id`	`vecinos`
`packet`	`MeshPacket` (75 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`1341622088` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`75` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	Not set	int32
`rx_snr`	`5.75` dB Signal quality at gateway	float
`rx_time`	`1779023767` 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`	`1` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`72` 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: Broadcast

Privacy Features:

✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: vecinos
✓ Gateway node ID tracked
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!69852dec`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	SNR: 5.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	75 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!4ff78748", "long_name": "CD3APS WIP", "short_name": "WIP1", "macaddr": "+oVP94dI", "hw_model": "XIAO_NRF52_KIT" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 1341622088, "to": 4294967295, "channel": 1, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhNGZmNzg3NDgSCkNEM0FQUyBXSVAaBFdJUDEiBvqFT/eHSChYOAFCIHjKHc0SWfhzh7dHX0d3pTXGHmVK0uC/4AhFCE3qo9Z7", "bitfield": 1 }, "id": 514417607, "rx_time": 1779023767, "rx_snr": 5.75, "hop_limit": 3, "hop_start": 3, "relay_node": 72, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "vecinos", "gateway_id": "!69852dec" }, "mesh_packet": { "from": 1341622088, "to": 4294967295, "channel": 1, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhNGZmNzg3NDgSCkNEM0FQUyBXSVAaBFdJUDEiBvqFT/eHSChYOAFCIHjKHc0SWfhzh7dHX0d3pTXGHmVK0uC/4AhFCE3qo9Z7", "bitfield": 1, "parsed_payload": { "id": "!4ff78748", "long_name": "CD3APS WIP", "short_name": "WIP1", "macaddr": "+oVP94dI", "hw_model": "XIAO_NRF52_KIT", "role": "CLIENT_MUTE", "public_key": "eModzRJZ+HOHt0dfR3elNcYeZUrS4L/gCEUITeqj1ns=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 514417607, "rx_time": 1779023767, "rx_snr": 5.75, "hop_limit": 3, "hop_start": 3, "relay_node": 72, "transport_mechanism": "TRANSPORT_LORA" } }

Raw Packet Data (75 bytes)

0a09213466663738373438120a434433415053205749501a04574950312206fa854ff7874828583801422078ca1dcd1259f87387b7475f4777a535c61e654ad2e0bfe00845084deaa3d67b

Hex Analysis:

Size:	75 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 #324631 Success

Packet Information

Payload Data

Decoded Data: