Packet #2510204

Database ID:	2510204
Mesh Packet ID:	`0xb0d6162f` Used for correlation across gateways
Timestamp:	2026-03-29 21:12:57 UTC
From Node:	RepetitorP1KS (RPKS)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	Boza 3IN Paper (3IN)
Channel:	Srbija
RSSI:	-50 dBm
SNR:	11.25 dBm
Hop Info:	1/3 hops Start: 3, Limit: 2

Long Name:	RepetitorP1KS
Short Name:	RPKS
Node ID:	!537733a2
MAC Address:	zhlTdzOi
Hardware:	SEEED_SOLAR_NODE

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:	!9ea0bedc
Channel:	Srbija
Payload Type:	NODEINFO_APP
Hop Count:	1 / 3

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: Srbija
+ 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`	`!9ea0bedc` Node ID format
`channel_id`	`Srbija`
`packet`	`MeshPacket` (80 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`1400320930` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`4` NODEINFO_APP	enum
`decoded.payload_length`	`80` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`3` Initial hop limit	uint32
`hops_taken`	`1` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-50.0` dBm Signal strength at gateway	int32
`rx_snr`	`11.25` dB Signal quality at gateway	float
`rx_time`	`1774818775` 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`	`214` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1774818777.2264278` 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: Srbija
✓ Gateway node ID tracked

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ Multi-hop path visible (1 hops)
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!9ea0bedc`
Signal Metrics:	RSSI: -50.0 dBm SNR: 11.25 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": "!537733a2", "long_name": "RepetitorP1KS", "short_name": "RPKS", "macaddr": "zhlTdzOi", "hw_model": "SEEED_SOLAR_NODE" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!9ea0bedc", "channel_id": "Srbija", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1400320930, "to": 4294967295, "id": 2966820399, "rx_time": 1774818775, "rx_snr": 11.25, "rx_rssi": -50, "hop_limit": 2, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 214, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213533373733336132120d526570657469746f7250314b531a0452504b532206ce19537733a2285f380242202f30646d7bea2ad6263037f57e2ce40f0d6d9cdfcf0fc2619d2d868101a6bb294801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!537733a2", "long_name": "RepetitorP1KS", "short_name": "RPKS", "macaddr": "zhlTdzOi", "hw_model": "SEEED_SOLAR_NODE", "role": "ROUTER", "public_key": "LzBkbXvqKtYmMDf1fizkDw1tnN/PD8JhnS2GgQGmuyk=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }

Raw Packet Data (80 bytes)

0a09213533373733336132120d526570657469746f7250314b531a0452504b532206ce19537733a2285f380242202f30646d7bea2ad6263037f57e2ce40f0d6d9cdfcf0fc2619d2d868101a6bb294801

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 #2510204 Success

Packet Information

Payload Data

Decoded Data: