Packet #466480

Database ID:	466480
Mesh Packet ID:	`0xea40bad6` Used for correlation across gateways
Timestamp:	2026-02-15 14:54:47 UTC
From Node:	KK4ECR Mesh EDC (ECR6)
To Node:	!b03cea2c (ea2c)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Ka0sCAP (Ka0s)
Channel:	LongFast
RSSI:	-104 dBm
SNR:	4.75 dBm
Hop Info:	0/3 hops Start: 3, Limit: 3
Relay Node:	`e0` ECR6 , bee0 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	KK4ECR Mesh EDC
Short Name:	ECR6
Node ID:	!4ef077e0
MAC Address:	gLVO8Hfg
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:	80 bytes
Gateway:	!768638c4
Channel:	LongFast
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
+ 2 more...

Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!768638c4` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (80 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1324382176` Source node ID	uint32
`to`	`2956782124` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`80` 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`	`-104.0` dBm Signal strength at gateway	int32
`rx_snr`	`4.75` dB Signal quality at gateway	float
`rx_time`	`1771167287` 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`	`224` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1771167287.9098344` 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
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

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

MQTT-Specific Fields

Gateway ID:	`!768638c4`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -104.0 dBm SNR: 4.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	80 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!4ef077e0", "long_name": "KK4ECR Mesh EDC", "short_name": "ECR6", "macaddr": "gLVO8Hfg", "hw_model": "T_DECK" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!768638c4", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1324382176, "to": 2956782124, "id": 3930110678, "rx_time": 1771167287, "rx_snr": 4.75, "rx_rssi": -104, "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": 224, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213465663037376530120f4b4b34454352204d657368204544431a0445435236220680b54ef077e028324220cae2573f3133f39389e678fb5aceb4922fbcc33ad2adb43e763d4644c2f29c164800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!4ef077e0", "long_name": "KK4ECR Mesh EDC", "short_name": "ECR6", "macaddr": "gLVO8Hfg", "hw_model": "T_DECK", "public_key": "yuJXPzEz85OJ5nj7Ws60ki+8wzrSrbQ+dj1GRMLynBY=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (80 bytes)

0a09213465663037376530120f4b4b34454352204d657368204544431a0445435236220680b54ef077e028324220cae2573f3133f39389e678fb5aceb4922fbcc33ad2adb43e763d4644c2f29c164800

Hex Analysis:

Size:	80 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 #466480 Success

Packet Information

Payload Data

Decoded Data: