Packet #2453811

Packet Information

Database ID:	2453811
Mesh Packet ID:	`0xca504a22` Used for correlation across gateways
Timestamp:	2026-03-21 22:26:53 UTC
From Node:	Miro LZ4NY 📟🇧🇬 (MiR0)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	TEXT_MESSAGE_APP Port: 1

Gateway:	MeshMonitor VR (VRMM)
Channel:	Bulgaria
RSSI:	-71 dBm
SNR:	11.5 dBm
Hop Info:	0/2 hops Start: 2, Limit: 2
Relay Node:	`ac` MiR0 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Payload Data

Protocol: TEXT_MESSAGE_APP

Size: 4 bytes

Decoded: Yes

Text Content:

3дp

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:	4 bytes
Gateway:	!433c4b24
Channel:	Bulgaria
Payload Type:	TEXT_MESSAGE_APP
Hop Count:	Unknown / 2

Privacy Summary

Exposure Level:
Broadcast

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: Bulgaria
+ 2 more...

Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
+ 1 more...

MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

Field	Value
`gateway_id`	`!433c4b24` Node ID format
`channel_id`	`Bulgaria`
`packet`	`MeshPacket` (4 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`3676952748` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`1` TEXT_MESSAGE_APP	enum
`decoded.payload_length`	`4` bytes	size
`hop_limit`	`2` Remaining hops allowed	uint32
`hop_start`	`2` Initial hop limit	uint32
`hops_taken`	`0` Calculated: hop_start - hop_limit	derived
`rx_rssi`	`-71.0` dBm Signal strength at gateway	int32
`rx_snr`	`11.50` dB Signal quality at gateway	float
`rx_time`	`1774132012` 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`	`172` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1774132013.8566206` 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: Bulgaria
✓ Gateway node ID tracked
✓ Zero-hop: direct from source to MQTT gateway

Exposure Risks:

⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
⚠ RF signal metrics exposed (location inference possible)

MQTT-Specific Fields

Gateway ID:	`!433c4b24`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -71.0 dBm SNR: 11.50 dB

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!433c4b24", "channel_id": "Bulgaria", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3676952748, "to": 4294967295, "id": 3394259490, "rx_time": 1774132012, "rx_snr": 11.5, "rx_rssi": -71, "hop_limit": 2, "hop_start": 2, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 172, "tx_after": 0, "decoded": { "portnum": 1, "payload": "33d0b470", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "text": "3дp", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } } } }

Raw Packet Data (4 bytes)

33d0b470

Hex Analysis:

Size:	4 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.

All Receptions

All gateways that received this packet
Correlation: Using Mesh Packet ID

Reception Locations

Loading reception map...

Map shows gateway locations that received this packet. Hop counts are displayed if available.

Gateway	Time Offset	RSSI	SNR	Relay	Channel	Timestamp	Actions
MeshMonitor VR (VRMM) Primary	0.000s Reference	-71.0 dBm	11.50 dB	`ac` MiR0	Bulgaria	2026-03-21 22:26:53 UTC	Current
Vratsa HV4-2 🇧🇬 ba48 (VRH4)	-0.339s Before	-20.0 dBm	11.50 dB	`ac` MiR0	Bulgaria	2026-03-21 22:26:53 UTC	View
Vratsa HV4-2 🇧🇬 ba48 (VRH4)	-0.227s Before	-20.0 dBm	11.50 dB	`ac` MiR0	Bulgaria	2026-03-21 22:26:53 UTC	View
TC2-BBS VR 📬🇧🇬 (TBBS)	-0.076s Before	-55.0 dBm	9.50 dB	`ac` MiR0	Bulgaria	2026-03-21 22:26:53 UTC	View
Vratsa G1 🇧🇬🌐🛰️ (VRG1)	-0.029s Before	-69.0 dBm	11.25 dB	`ac` MiR0	Bulgaria	2026-03-21 22:26:53 UTC	View
Vratsa Telegram Bot 🇧🇬🤖🛰️ (VRTB)	-0.016s Before	-26.0 dBm	11.75 dB	`ac` MiR0	Bulgaria	2026-03-21 22:26:53 UTC	View
Vratsa Telegram Bot 🇧🇬🤖🛰️ (VRTB)	+0.010s After	-26.0 dBm	11.75 dB	`ac` MiR0	Bulgaria	2026-03-21 22:26:53 UTC	View
TC2-BBS VR 📬🇧🇬 (TBBS)	+0.240s After	-55.0 dBm	9.50 dB	`ac` MiR0	Bulgaria	2026-03-21 22:26:54 UTC	View
Vratsa G1 🇧🇬🌐🛰️ (VRG1)	+0.378s After	-69.0 dBm	11.25 dB	`ac` MiR0	Bulgaria	2026-03-21 22:26:54 UTC	View
MeshMonitor VR (VRMM)	+0.668s After	-71.0 dBm	11.50 dB	`ac` MiR0	Bulgaria	2026-03-21 22:26:54 UTC	View

10

Total Receptions

5

Unique Gateways

Packet #2453811 Success