Packet #299185

Database ID:	299185
Mesh Packet ID:	`0x6d8c78a7` Used for correlation across gateways
Timestamp:	2026-06-03 16:23:40 UTC
From Node:	Kara C (Kara)
To Node:	Meshtastic f590 (f590)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Sauce Home MQTT HDMesh.org (SS01)
Channel:	LongMod
RSSI:	-128 dBm
SNR:	-17.5 dBm
Hop Info:	0/3 hops Start: 3, Limit: 3
Relay Node:	`fa` dma7 , Kara Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	Kara C
Short Name:	Kara
Node ID:	!a0a584fa
MAC Address:	6bCgpYT6
Hardware:	TRACKER_T1000_E

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:	72 bytes
Gateway:	!33603060
Channel:	LongMod
Payload Type:	NODEINFO_APP
Hop Count:	Unknown / 3

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 3 more...

Exposure Risks:
⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!33603060` Node ID format
`channel_id`	`LongMod`
`packet`	`MeshPacket` (72 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`2695202042` Source node ID	uint32
`to`	`2534339984` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`72` 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`	`-128.0` dBm Signal strength at gateway	int32
`rx_snr`	`-17.50` dB Signal quality at gateway	float
`rx_time`	`1780503818` 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`	`250` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1780503820.0648115` 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: LongMod
✓ Gateway node ID tracked
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!33603060`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -128.0 dBm SNR: -17.50 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	72 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!a0a584fa", "long_name": "Kara C ", "short_name": "Kara", "macaddr": "6bCgpYT6", "hw_model": "TRACKER_T1000_E" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!33603060", "channel_id": "LongMod", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2695202042, "to": 2534339984, "id": 1837922471, "rx_time": 1780503818, "rx_snr": -17.5, "rx_rssi": -128, "hop_limit": 3, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 250, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921613061353834666112074b6172612043201a044b6172612206e9b0a0a584fa284742202b321b4b6b51aa96857b8e6ed776c2580f6251bdc93dbda95d2e99e2914587254800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!a0a584fa", "long_name": "Kara C ", "short_name": "Kara", "macaddr": "6bCgpYT6", "hw_model": "TRACKER_T1000_E", "public_key": "KzIbS2tRqpaFe45u13bCWA9iUb3JPb2pXS6Z4pFFhyU=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (72 bytes)

0a0921613061353834666112074b6172612043201a044b6172612206e9b0a0a584fa284742202b321b4b6b51aa96857b8e6ed776c2580f6251bdc93dbda95d2e99e2914587254800

Hex Analysis:

Size:	72 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 #299185 Success

Packet Information

Payload Data

Decoded Data: