Packet #317712

Database ID:	317712
Mesh Packet ID:	`0x57d416a6` Used for correlation across gateways
Timestamp:	2026-01-03 19:13:00 UTC
From Node:	urn4 (48ee)
To Node:	AKF Dacha (AKF)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Dante (01e1)
Channel:	LongFast
RSSI:	-128 dBm
SNR:	-16.25 dBm
Hop Info:	2/6 hops Start: 6, Limit: 4

Long Name:	urn4
Short Name:	urn4
Node ID:	!b3eb48ee
MAC Address:	45uz60ju
Hardware:	HELTEC_MESH_NODE_T114

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:	69 bytes
Gateway:	!e58501e1
Channel:	LongFast
Payload Type:	NODEINFO_APP
Hop Count:	2 / 6

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`	`!e58501e1` Node ID format
`channel_id`	`LongFast` Default public channel
`packet`	`MeshPacket` (69 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3018541294` Source node ID	uint32
`to`	`113986288` Target node ID	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`69` bytes	size
`hop_limit`	`4` Remaining hops allowed	uint32
`hop_start`	`6` 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`	`-16.25` dB Signal quality at gateway	float
`rx_time`	`1767449578` 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`	`216` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1767449580.0776057` 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:	`!e58501e1`
Signal Metrics:	RSSI: -128.0 dBm SNR: -16.25 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	69 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!b3eb48ee", "long_name": "urn4", "short_name": "urn4", "macaddr": "45uz60ju", "hw_model": "HELTEC_MESH_NODE_T114" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!e58501e1", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3018541294, "to": 113986288, "id": 1473517222, "rx_time": 1767449578, "rx_snr": -16.25, "rx_rssi": -128, "hop_limit": 4, "hop_start": 6, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 216, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216233656234386565120475726e341a0475726e342206e39bb3eb48ee28454220da7d745eab9de6b7ad11c2874f5e511b21bf13ec331804eb2b287eb4317fac204800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!b3eb48ee", "long_name": "urn4", "short_name": "urn4", "macaddr": "45uz60ju", "hw_model": "HELTEC_MESH_NODE_T114", "public_key": "2n10Xqud5retEcKHT15RGyG/E+wzGATrKyh+tDF/rCA=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (69 bytes)

0a09216233656234386565120475726e341a0475726e342206e39bb3eb48ee28454220da7d745eab9de6b7ad11c2874f5e511b21bf13ec331804eb2b287eb4317fac204800

Hex Analysis:

Size:	69 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 #317712 Success

Packet Information

Payload Data

Decoded Data: