Packet #13964270 Success

NODEINFO_APP packet from Oxygen EA4HKU (O) to Sierra norte Madrid ⛰️🗼🌞 (SNM)

2
Total Receptions
2
Unique Gateways
0
Hop Count
77
Payload Bytes
Packet Information
Database ID: 13964270
Mesh Packet ID: 0xb3972485
Used for correlation across gateways
Timestamp: 2025-10-07 06:27:23 UTC
From Node: Oxygen EA4HKU (O)
To Node: Sierra norte Madrid ⛰️🗼🌞 (SNM)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Carbon EA4HKU (C)
Channel: MediumSlow
RSSI: Unknown
SNR: Unknown
Hop Info: 0/3 hops
Start: 3, Limit: 3
Payload Data
Protocol: NODEINFO_APP
Size: 77 bytes
Decoded: Yes
Decoded Data:
Long Name:Oxygen EA4HKU
Short Name:O
Node ID:!a0cb6198
MAC Address:MO2gy2GY
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:77 bytes
Gateway:!a0cb0d44
Channel:MediumSlow
Payload Type:NODEINFO_APP
Hop Count:Unknown / 3
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 3 more...
Exposure Risks:
⚠ Packet visible to MQTT subscribers
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !a0cb0d44
Node ID format
channel_id MediumSlow
packet MeshPacket (77 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2697683352
Source node ID 		uint32
to 1129719940
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 77 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 Not set int32
rx_snr Not set float
rx_time 1759818441
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority 70
Packet priority level 		enum
delayed Not set enum
channel Not set uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 152
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1759818443.8804379
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)
  • ✓ Targeted to specific node
  • ✓ Custom channel: MediumSlow
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Packet visible to MQTT subscribers
MQTT-Specific Fields
Gateway ID: !a0cb0d44
Zero Hop Policy: Enabled
Direct gateway connection
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:77 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!a0cb6198", "long_name": "Oxygen EA4HKU", "short_name": "O", "macaddr": "MO2gy2GY", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!a0cb0d44", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2697683352, "to": 1129719940, "id": 3013026949, "rx_time": 1759818441, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 3, "hop_start": 3, "via_mqtt": 0, "want_ack": 0, "priority": 70, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 152, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216130636236313938120d4f787967656e20454134484b551a014f220630eda0cb6198282b38014220d7d4be4fda89212592bc02708174b5b691610a1913ea587fcfc0a71ffa76ed764801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!a0cb6198", "long_name": "Oxygen EA4HKU", "short_name": "O", "macaddr": "MO2gy2GY", "hw_model": "HELTEC_V3", "role": "CLIENT_MUTE", "public_key": "19S+T9qJISWSvAJwgXS1tpFhChkT6lh/z8CnH/p27XY=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (77 bytes)
0a09216130636236313938120d4f787967656e20454134484b551a014f220630eda0cb6198282b38014220d7d4be4fda89212592bc02708174b5b691610a1913ea587fcfc0a71ffa76ed764801
Hex Analysis:
Size:77 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
Carbon EA4HKU (C) Primary 0.000s
Reference 		Unknown Unknown 0 MediumSlow 2025-10-07 06:27:23 Current
Oxygen EA4HKU (O) -2.477s
Before 		Unknown Unknown 0 MediumSlow 2025-10-07 06:27:21 View
2

Total Receptions

2

Unique Gateways