Packet #1714641

Database ID:	1714641
Mesh Packet ID:	`0x47cd5f9d` Used for correlation across gateways
Timestamp:	2026-07-28 08:18:29 UTC
From Node:	EB4APF portable (4APF)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	EB4APF portable (4APF)
Channel:	SFNarrow
RSSI:	Unknown
SNR:	Unknown
Hop Info:	0/5 hops Start: 5, Limit: 5
Relay Node:	`80` 4APF Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	EB4APF portable
Short Name:	4APF
Node ID:	!433eea80
MAC Address:	SMpDPuqA
Hardware:	HELTEC_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:	81 bytes
Gateway:	!433eea80
Channel:	SFNarrow
Payload Type:	NODEINFO_APP
Hop Count:	0 / 5

Privacy Summary

Exposure Level:
Broadcast

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

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!433eea80` Node ID format
`channel_id`	`SFNarrow`
`packet`	`MeshPacket` (81 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`1128196736` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`81` bytes	size
`hop_limit`	`5` Remaining hops allowed	uint32
`hop_start`	`5` 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`	`1785226708` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	False No ACK requested	bool
`priority`	`DEFAULT` Packet priority level	enum
`delayed`	Not set	enum
`channel`	`32` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`128` 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: SFNarrow
✓ 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

MQTT-Specific Fields

Gateway ID:	`!433eea80`
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:	81 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!433eea80", "long_name": "EB4APF portable ", "short_name": "4APF", "macaddr": "SMpDPuqA", "hw_model": "HELTEC_V3" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 1128196736, "to": 4294967295, "channel": 32, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhNDMzZWVhODASEEVCNEFQRiBwb3J0YWJsZSAaBDRBUEYiBkjKQz7qgCgrQiAt3EVRz+qiTEcn1Uk8f+SOUiJrWndrsMlSVKULTdsJEUgA", "want_response": true, "bitfield": 3 }, "id": 1204641693, "rx_time": 1785226708, "hop_limit": 5, "priority": "DEFAULT", "hop_start": 5, "relay_node": 128 }, "channel_id": "SFNarrow", "gateway_id": "!433eea80" }, "mesh_packet": { "from": 1128196736, "to": 4294967295, "channel": 32, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhNDMzZWVhODASEEVCNEFQRiBwb3J0YWJsZSAaBDRBUEYiBkjKQz7qgCgrQiAt3EVRz+qiTEcn1Uk8f+SOUiJrWndrsMlSVKULTdsJEUgA", "want_response": true, "bitfield": 3, "parsed_payload": { "id": "!433eea80", "long_name": "EB4APF portable ", "short_name": "4APF", "macaddr": "SMpDPuqA", "hw_model": "HELTEC_V3", "public_key": "LdxFUc/qokxHJ9VJPH/kjlIia1p3a7DJUlSlC03bCRE=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 1204641693, "rx_time": 1785226708, "hop_limit": 5, "priority": "DEFAULT", "hop_start": 5, "relay_node": 128 } }

Raw Packet Data (81 bytes)

0a09213433336565613830121045423441504620706f727461626c65201a0434415046220648ca433eea80282b42202ddc4551cfeaa24c4727d5493c7fe48e52226b5a776bb0c95254a50b4ddb09114800

Hex Analysis:

Size:	81 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 #1714641 Success

Packet Information

Payload Data

Decoded Data: