Packet #130751

Database ID:	130751
Mesh Packet ID:	`0x18ac77ee` Used for correlation across gateways
Timestamp:	2026-04-01 14:39:34 UTC
From Node:	J.GRETCH DECK.3 (JG3)
To Node:	Adventure Time 01 (Finn)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	MOMOMonitor (MMMN)
Channel:	LongFast
RSSI:	-69 dBm
SNR:	6.25 dBm
Hop Info:	2/7 hops Start: 7, Limit: 5
Relay Node:	`75` MMBA Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	J.GRETCH DECK.3
Short Name:	JG3
Node ID:	!f1a7e984
MAC Address:	IG7xp+mE
Hardware:	T_DECK

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:	!9e9fb46c
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	2 / 7

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 1 more...

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 2 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!9e9fb46c` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (81 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`4054313348` Source node ID	uint32
`to`	`249733554` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`81` bytes	size
`hop_limit`	`5` Remaining hops allowed	uint32
`hop_start`	`7` Initial hop limit	uint32
`hops_taken`	`2` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-69.0` dBm Signal strength at gateway	int32
`rx_snr`	`6.25` dB Signal quality at gateway	float
`rx_time`	`1775054373` 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`	`117` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1775054374.94524` 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
✓ Gateway node ID tracked

Exposure Risks:

⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (2 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!9e9fb46c`
Signal Metrics:	RSSI: -69.0 dBm SNR: 6.25 dB

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": "!f1a7e984", "long_name": "J.GRETCH DECK.3", "short_name": "JG3", "macaddr": "IG7xp+mE", "hw_model": "T_DECK" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!9e9fb46c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 4054313348, "to": 249733554, "id": 413956078, "rx_time": 1775054373, "rx_snr": 6.25, "rx_rssi": -69, "hop_limit": 5, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 117, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216631613765393834120f4a2e475245544348204445434b2e331a034a47332206206ef1a7e9842832380142204d3365176dd0255c0d7a1eb1cc4da0a60a1f9c4741425a5f39983eafac18134e4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!f1a7e984", "long_name": "J.GRETCH DECK.3", "short_name": "JG3", "macaddr": "IG7xp+mE", "hw_model": "T_DECK", "role": "CLIENT_MUTE", "public_key": "TTNlF23QJVwNeh6xzE2gpgofnEdBQlpfOZg+r6wYE04=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (81 bytes)

0a09216631613765393834120f4a2e475245544348204445434b2e331a034a47332206206ef1a7e9842832380142204d3365176dd0255c0d7a1eb1cc4da0a60a1f9c4741425a5f39983eafac18134e4800

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 #130751 Success

Packet Information

Payload Data

Decoded Data: