Packet #1534410

Database ID:	1534410
Mesh Packet ID:	`0xb98eb48c` Used for correlation across gateways
Timestamp:	2026-05-31 06:59:26 UTC
From Node:	V4 Test (V4TE)
To Node:	W2WTF-2 (WTF2)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	KU4SD Garrett (ca70)
Channel:	MediumFast
RSSI:	-58 dBm
SNR:	11.0 dBm
Hop Info:	4/7 hops Start: 7, Limit: 3
Relay Node:	`d4` KUSD Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	V4 Test
Short Name:	V4TE
Node ID:	!6984a278
MAC Address:	kHBphKJ4
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:	74 bytes
Gateway:	!8ea0ca70
Channel:	MediumFast
Payload Type:	NODEINFO_APP
Hop Count:	4 / 7

Privacy Summary

Exposure Level:
Direct Message

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

Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (4 hops)
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!8ea0ca70` Node ID format
`channel_id`	`MediumFast`
`packet`	`MeshPacket` (74 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1770300024` Source node ID	uint32
`to`	`1771799152` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`74` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`4` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-58.0` dBm Signal strength at gateway	int32
`rx_snr`	`11.00` dB Signal quality at gateway	float
`rx_time`	`1780210761` 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`	`212` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1780210766.5183215` 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
✓ Custom channel: MediumFast
✓ Gateway node ID tracked

Exposure Risks:

⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (4 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!8ea0ca70`
Signal Metrics:	RSSI: -58.0 dBm SNR: 11.00 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": "!6984a278", "long_name": "V4 Test", "short_name": "V4TE", "macaddr": "kHBphKJ4", "hw_model": "HELTEC_V4" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!8ea0ca70", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1770300024, "to": 1771799152, "id": 3113137292, "rx_time": 1780210761, "rx_snr": 11.0, "rx_rssi": -58, "hop_limit": 3, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 212, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092136393834613237381207563420546573741a0456345445220690706984a278286e38014220c469a3b5e3bcc2534d795de12905c986272c1c153accde15028becb7adccef394800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!6984a278", "long_name": "V4 Test", "short_name": "V4TE", "macaddr": "kHBphKJ4", "hw_model": "HELTEC_V4", "role": "CLIENT_MUTE", "public_key": "xGmjteO8wlNNeV3hKQXJhicsHBU6zN4VAovst63M7zk=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (74 bytes)

0a092136393834613237381207563420546573741a0456345445220690706984a278286e38014220c469a3b5e3bcc2534d795de12905c986272c1c153accde15028becb7adccef394800

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 #1534410 Success

Packet Information

Payload Data

Decoded Data: