Packet #28273290 Success

NODEINFO_APP packet from DULCINEA Albacete (LUIS) to !ffffffff

4
Total Receptions
4
Unique Gateways
0
Hop Count
82
Payload Bytes
Packet Information
Database ID: 28273290
Mesh Packet ID: 0x87f78da2
Used for correlation across gateways
Timestamp: 2025-12-17 13:31:40 UTC
From Node: DULCINEA Albacete (LUIS)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: San_Pablo🗼 (SP00)
Channel: MediumFast
RSSI: -119 dBm
SNR: -10.5 dBm
Hop Info: 0/4 hops
Start: 4, Limit: 4
Relay Node: 84 LUIS
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: NODEINFO_APP
Size: 82 bytes
Decoded: Yes
Decoded Data:
Long Name:DULCINEA Albacete
Short Name:LUIS
Node ID:!db2f1384
MAC Address:EFHbLxOE
Hardware:HELTEC_V3
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:82 bytes
Gateway:!db2b5848
Channel:MediumFast
Payload Type:NODEINFO_APP
Hop Count:Unknown / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 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

FieldValue
gateway_id !db2b5848
Node ID format
channel_id MediumFast
packet MeshPacket (82 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3677295492
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 82 bytes size
hop_limit 4
Remaining hops allowed 		uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -119.0 dBm
Signal strength at gateway 		int32
rx_snr -10.50 dB
Signal quality at gateway 		float
rx_time 1765978299
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 132
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765978300.4488049
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: MediumFast
  • ✓ 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: !db2b5848
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -119.0 dBm
SNR: -10.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:82 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!db2f1384", "long_name": "DULCINEA Albacete", "short_name": "LUIS", "macaddr": "EFHbLxOE", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!db2b5848", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3677295492, "to": 4294967295, "id": 2281147810, "rx_time": 1765978299, "rx_snr": -10.5, "rx_rssi": -119, "hop_limit": 4, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 132, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216462326631333834121144554c43494e454120416c6261636574651a044c55495322061051db2f1384282b422068550d61a7de641e68c858926a9f9e144268b3116f9f808f65b94ca2fa69ef5b4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!db2f1384", "long_name": "DULCINEA Albacete", "short_name": "LUIS", "macaddr": "EFHbLxOE", "hw_model": "HELTEC_V3", "public_key": "aFUNYafeZB5oyFiSap+eFEJosxFvn4CPZblMovpp71s=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (82 bytes)
0a09216462326631333834121144554c43494e454120416c6261636574651a044c55495322061051db2f1384282b422068550d61a7de641e68c858926a9f9e144268b3116f9f808f65b94ca2fa69ef5b4800
Hex Analysis:
Size:82 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 Relay Channel Timestamp Actions
San_Pablo🗼 (SP00) Primary 0.000s
Reference 		-119.0 dBm -10.50 dB 0 84 LUIS MediumFast 2025-12-17 13:31:40 UTC Current
EA5WA TRASTERO (WA01) -0.018s
Before 		-114.0 dBm -8.25 dB 0 84 LUIS MediumFast 2025-12-17 13:31:40 UTC View
Albacete_01 🛜 (Ab01) +2.289s
After 		-112.0 dBm -11.75 dB 2 47 EAL2 MediumFast 2025-12-17 13:31:42 UTC View
EAL Station 1 🗼🌐 (EAL1) +3.122s
After 		-98.0 dBm 7.00 dB 3 06 📍 MediumFast 2025-12-17 13:31:43 UTC View
4

Total Receptions

4

Unique Gateways