Packet #55453

Packet Information

Database ID:	55453
Mesh Packet ID:	`0x9475c6d6` Used for correlation across gateways
Timestamp:	2025-11-25 22:37:19 UTC
From Node:	un6gau lilygo (CALL)
To Node:	duro d3f0 (duro)
Success:	Processed
Protocol:	TEXT_MESSAGE_APP Port: 1

Gateway:	duro d3f0 (duro)
Channel:	PKI
RSSI:	-131 dBm
SNR:	-18.0 dBm
Hop Info:	0/3 hops Start: 3, Limit: 3

Payload Data

Protocol: TEXT_MESSAGE_APP

Size: 6 bytes

Decoded: Yes

Text Content:

Ага

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:	6 bytes
Gateway:	!5c0ed3f0
Channel:	PKI
Payload Type:	TEXT_MESSAGE_APP
Hop Count:	Unknown / 3

Privacy Summary

Exposure Level:
Direct Message

Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ PKI encrypted packet
+ 5 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`	`!5c0ed3f0` Node ID format
`channel_id`	`PKI`
`packet`	`MeshPacket` (6 bytes) Contains the actual mesh network packet

MeshPacket Fields

Core mesh packet with routing and payload information

Field	Value	Type
`from`	`813205444` Source node ID	uint32
`to`	`1544475632` Target node ID	uint32
`decoded.portnum`	`1` TEXT_MESSAGE_APP	enum
`decoded.payload_length`	`6` 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`	`-131.0` dBm Signal strength at gateway	int32
`rx_snr`	`-18.00` dB Signal quality at gateway	float
`rx_time`	`1764092210` Receive timestamp	fixed32
`via_mqtt`	False Direct LoRa transmission	bool
`want_ack`	True Acknowledgment requested	bool
`priority`	Not set	enum
`delayed`	Not set	enum
`channel`	Not set	uint32
`pki_encrypted`	True PKI encryption used	bool
`next_hop`	Not set	uint32
`relay_node`	`196` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	`1764092239.102135` 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)
✓ PKI encrypted packet
✓ Acknowledgment requested
✓ Targeted to specific node
✓ Custom channel: PKI
✓ 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

Pki encrypted:	`True`
Want ack:	`True`
Gateway ID:	`!5c0ed3f0`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -131.0 dBm SNR: -18.00 dB

Complete Protobuf Decode (JSON)

{ "service_envelope": { "gateway_id": "!5c0ed3f0", "channel_id": "PKI", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 813205444, "to": 1544475632, "id": 2490746582, "rx_time": 1764092210, "rx_snr": -18.0, "rx_rssi": -131, "hop_limit": 3, "hop_start": 3, "via_mqtt": 0, "want_ack": 1, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 1, "next_hop": 0, "relay_node": 196, "tx_after": 0, "decoded": { "portnum": 1, "payload": "d090d0b3d0b0", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "text": "Ага", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } } } }

Raw Packet Data (6 bytes)

d090d0b3d0b0

Hex Analysis:

Size:	6 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	Hops	Channel	Timestamp	Actions
duro d3f0 (duro) Primary	0.000s Reference	-131.0 dBm	-18.00 dB	0	PKI	2025-11-25 22:37:19	Current
un6gau lilygo (CALL)	-29.239s Before	Unknown	Unknown	0	PKI	2025-11-25 22:36:49	View

2

Total Receptions

2

Unique Gateways

Packet #55453 Success