Packet #163384

Database ID:	163384
Mesh Packet ID:	`0x8230d9b9` Used for correlation across gateways
Timestamp:	2026-04-06 22:55:25 UTC
From Node:	ScorchedEarth (SE)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Sauce Home MQTT HDMesh.org (SS01)
Channel:	LongMod
RSSI:	-128 dBm
SNR:	-16.5 dBm
Hop Info:	2/5 hops Start: 5, Limit: 3
Relay Node:	`55` HDR2 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	ScorchedEarth
Short Name:	SE
Node ID:	!bc46ac7c
MAC Address:	0ha8Rqx8
Hardware:	RAK4631

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:	76 bytes
Gateway:	!33603060
Channel:	LongMod
Payload Type:	NODEINFO_APP
Hop Count:	2 / 5

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: LongMod
+ 1 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!33603060` Node ID format
`channel_id`	`LongMod`
`packet`	`MeshPacket` (76 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3158748284` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`76` bytes	size
`hop_limit`	`3` Remaining hops allowed	uint32
`hop_start`	`5` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-128.0` dBm Signal strength at gateway	int32
`rx_snr`	`-16.50` dB Signal quality at gateway	float
`rx_time`	`1775516121` 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`	`85` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1775516125.0715191` Unix timestamp	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: LongMod
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!33603060`
Signal Metrics:	RSSI: -128.0 dBm SNR: -16.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	76 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!bc46ac7c", "long_name": "ScorchedEarth", "short_name": "SE", "macaddr": "0ha8Rqx8", "hw_model": "RAK4631" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!33603060", "channel_id": "LongMod", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3158748284, "to": 4294967295, "id": 2184239545, "rx_time": 1775516121, "rx_snr": -16.5, "rx_rssi": -128, "hop_limit": 3, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 85, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216263343661633763120d53636f726368656445617274681a0253452206d216bc46ac7c280942203051bce6e66d598f9139ec238e0e57395191cf5dccac26c2c6f20ee7f1b6a36a4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!bc46ac7c", "long_name": "ScorchedEarth", "short_name": "SE", "macaddr": "0ha8Rqx8", "hw_model": "RAK4631", "public_key": "MFG85uZtWY+ROewjjg5XOVGRz13MrCbCxvIO5/G2o2o=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (76 bytes)

0a09216263343661633763120d53636f726368656445617274681a0253452206d216bc46ac7c280942203051bce6e66d598f9139ec238e0e57395191cf5dccac26c2c6f20ee7f1b6a36a4800

Hex Analysis:

Size:	76 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 #163384 Success

Packet Information

Payload Data

Decoded Data: