Packet #2318691

Database ID:	2318691
Mesh Packet ID:	`0x9601e71a` Used for correlation across gateways
Timestamp:	2026-04-13 04:16:00 UTC
From Node:	7007hMesh (7007)
To Node:	!ffffffff (ffff)
Success:	Processed
Protocol:	NODEINFO_APP Port: 4

Gateway:	CityMesh (City)
Channel:	Sandanski
RSSI:	-104 dBm
SNR:	5.75 dBm
Hop Info:	0/2 hops Start: 2, Limit: 2
Relay Node:	`a0` AP03 Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions

Long Name:	7007hMesh
Short Name:	7007
Node ID:	!a69639b0
MAC Address:	iFamljmw
Hardware:	HELTEC_V4

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:	76 bytes
Gateway:	!a0cbb8ac
Channel:	Sandanski
Payload Type:	NODEINFO_APP
Hop Count:	0 / 2

Privacy Summary

Exposure Level:
Broadcast

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

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

MQTT ServiceEnvelope Fields

Field	Value
`gateway_id`	`!a0cbb8ac` Node ID format
`channel_id`	`Sandanski`
`packet`	`MeshPacket` (76 bytes) Contains the actual mesh network packet

MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

Field	Value	Type
`from`	`2794863024` Source node ID	uint32
`to`	`4294967295` (Broadcast) Visible to all nodes	uint32
`decoded.portnum`	`NODEINFO_APP` NODEINFO_APP	enum
`decoded.payload_length`	`76` 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`	`-104.0` dBm Signal strength at gateway	int32
`rx_snr`	`5.75` dB Signal quality at gateway	float
`rx_time`	`1776053759` 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`	`68` Channel index	uint32
`pki_encrypted`	False Standard encryption	bool
`next_hop`	Not set	uint32
`relay_node`	`160` Relay node ID	uint32
`tx_after`	Not set	uint32
`timestamp`	Not set	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: Sandanski
✓ 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:	`!a0cbb8ac`
Zero Hop Policy:	Enabled Direct gateway connection
Signal Metrics:	RSSI: -104.0 dBm SNR: 5.75 dB

Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:

Protocol:	NODEINFO_APP
Size:	76 bytes
Decoded:	Yes

Complete Payload Data (JSON):

{ "id": "!a69639b0", "long_name": "7007hMesh", "short_name": "7007", "macaddr": "iFamljmw", "hw_model": "HELTEC_V4" }

Complete Protobuf Decode (JSON)

{ "service_envelope": { "packet": { "from": 2794863024, "to": 4294967295, "channel": 68, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhYTY5NjM5YjASCTcwMDdoTWVzaBoENzAwNyIGiFamljmwKG44AUIgAcmgt03IK4CapBMaWYIewyUYIpuBWatrNnog7Pri2WlIAA==", "bitfield": 1 }, "id": 2516707098, "rx_time": 1776053759, "rx_snr": 5.75, "hop_limit": 2, "rx_rssi": -104, "hop_start": 2, "relay_node": 160 }, "channel_id": "Sandanski", "gateway_id": "!a0cbb8ac" }, "mesh_packet": { "from": 2794863024, "to": 4294967295, "channel": 68, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhYTY5NjM5YjASCTcwMDdoTWVzaBoENzAwNyIGiFamljmwKG44AUIgAcmgt03IK4CapBMaWYIewyUYIpuBWatrNnog7Pri2WlIAA==", "bitfield": 1, "parsed_payload": { "id": "!a69639b0", "long_name": "7007hMesh", "short_name": "7007", "macaddr": "iFamljmw", "hw_model": "HELTEC_V4", "role": "CLIENT_MUTE", "public_key": "Acmgt03IK4CapBMaWYIewyUYIpuBWatrNnog7Pri2Wk=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 2516707098, "rx_time": 1776053759, "rx_snr": 5.75, "hop_limit": 2, "rx_rssi": -104, "hop_start": 2, "relay_node": 160 } }

Raw Packet Data (76 bytes)

0a09216136393633396230120937303037684d6573681a043730303722068856a69639b0286e3801422001c9a0b74dc82b809aa4131a59821ec32518229b8159ab6b367a20ecfae2d9694800

Hex Analysis:

Size:	76 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 #2318691 Success

Packet Information

Payload Data

Decoded Data: