Packet #27864714 Success

NODEINFO_APP packet from Sobradiel_EA2EYJ>Antena Vertical/Solar (Luis) to !ffffffff

1
Total Receptions
1
Unique Gateways
2
Hop Count
105
Payload Bytes
Packet Information
Database ID: 27864714
Mesh Packet ID: 0xe42a064d
Used for correlation across gateways
Timestamp: 2025-12-15 17:47:15 UTC
From Node: Sobradiel_EA2EYJ>Antena Vertical/Solar (Luis)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Buz2 Óscar (BUZ)
Channel: LongFast
RSSI: -122 dBm
SNR: -12.75 dBm
Hop Info: 2/4 hops
Start: 4, Limit: 2
Relay Node: ff
Last byte of the last hop that relayed this packet
Payload Data
Protocol: NODEINFO_APP
Size: 105 bytes
Decoded: Yes
Decoded Data:
Long Name:Sobradiel_EA2EYJ>Antena Vertical/Solar
Short Name:Luis
Node ID:!2744ee88
MAC Address:6Z8nRO6I
Hardware:NRF52_PROMICRO_DIY
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:105 bytes
Gateway:!9e9c69dc
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:2 / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !9e9c69dc
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (105 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 658828936
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 105 bytes size
hop_limit 2
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -122.0 dBm
Signal strength at gateway 		int32
rx_snr -12.75 dB
Signal quality at gateway 		float
rx_time 1765820834
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 255
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765820835.1224391
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)
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ 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: !9e9c69dc
Signal Metrics: RSSI: -122.0 dBm
SNR: -12.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:105 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!2744ee88", "long_name": "Sobradiel_EA2EYJ>Antena Vertical/Solar", "short_name": "Luis", "macaddr": "6Z8nRO6I", "hw_model": "NRF52_PROMICRO_DIY" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!9e9c69dc", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 658828936, "to": 4294967295, "id": 3827959373, "rx_time": 1765820834, "rx_snr": -12.75, "rx_rssi": -122, "hop_limit": 2, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 255, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092132373434656538381226536f6272616469656c5f45413245594a3e416e74656e6120566572746963616c2f536f6c61721a044c7569732206e99f2744ee88283f380c4220fb978a4783e7dfee599511a5b6a7d40bc5185052766f3feee03554e3f9fe20474800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!2744ee88", "long_name": "Sobradiel_EA2EYJ>Antena Vertical/Solar", "short_name": "Luis", "macaddr": "6Z8nRO6I", "hw_model": "NRF52_PROMICRO_DIY", "role": "CLIENT_BASE", "public_key": "+5eKR4Pn3+5ZlRGltqfUC8UYUFJ2bz/u4DVU4/n+IEc=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (105 bytes)
0a092132373434656538381226536f6272616469656c5f45413245594a3e416e74656e6120566572746963616c2f536f6c61721a044c7569732206e99f2744ee88283f380c4220fb978a4783e7dfee599511a5b6a7d40bc5185052766f3feee03554e3f9fe20474800
Hex Analysis:
Size:105 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
Gateway Time Offset RSSI SNR Hops Relay Channel Timestamp Actions
Buz2 Óscar (BUZ) Primary 0.000s
Reference 		-122.0 dBm -12.75 dB 2 ff LongFast 2025-12-15 17:47:15 UTC Current
No other receptions found within ±2 seconds
1

Total Receptions

1

Unique Gateways