Packet #13853737 Success

NODEINFO_APP packet from MT14 Sierra (mtbc) to !ffffffff

9
Total Receptions
1
Unique Gateways
0
Hop Count
76
Payload Bytes
Packet Information
Database ID: 13853737
Mesh Packet ID: 0x63399b20
Used for correlation across gateways
Timestamp: 2025-10-06 11:40:23 UTC
From Node: MT14 Sierra (mtbc)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: MT14 Portatil 📡 (mtp1)
Channel: MediumSlow
RSSI: -25 dBm
SNR: 8.25 dBm
Hop Info: 0/4 hops
Start: 4, Limit: 4
Payload Data
Protocol: NODEINFO_APP
Size: 76 bytes
Decoded: Yes
Decoded Data:
Long Name:MT14 Sierra
Short Name:mtbc
Node ID:!ba0c7900
MAC Address:ECC6DHkA
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:76 bytes
Gateway:!ba0c7be8
Channel:MediumSlow
Payload Type:NODEINFO_APP
Hop Count:Unknown / 4
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumSlow
+ 2 more...
Exposure Risks:
âš  Visible to all nodes on channel
âš  Packet visible to MQTT subscribers
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !ba0c7be8
Node ID format
channel_id MediumSlow
packet MeshPacket (76 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3121379584
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 76 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 -25.0 dBm
Signal strength at gateway 		int32
rx_snr 8.25 dB
Signal quality at gateway 		float
rx_time 1759749499
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 1759750823.598901
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: MediumSlow
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • âš  Visible to all nodes on channel
  • âš  Packet visible to MQTT subscribers
  • âš  RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !ba0c7be8
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -25.0 dBm
SNR: 8.25 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": "!ba0c7900", "long_name": "MT14 Sierra", "short_name": "mtbc", "macaddr": "ECC6DHkA", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!ba0c7be8", "channel_id": "MediumSlow", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3121379584, "to": 4294967295, "id": 1664719648, "rx_time": 1759749499, "rx_snr": 8.25, "rx_rssi": -25, "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": 255, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216261306337393030120b4d543134205369657272611a046d74626322061020ba0c7900282b4220b4a592761efa29a835350fbc9c2717cc384c1a5f9ef24b7459b0c31d025d0c2c4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!ba0c7900", "long_name": "MT14 Sierra", "short_name": "mtbc", "macaddr": "ECC6DHkA", "hw_model": "HELTEC_V3", "public_key": "tKWSdh76Kag1NQ+8nCcXzDhMGl+e8kt0WbDDHQJdDCw=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (76 bytes)
0a09216261306337393030120b4d543134205369657272611a046d74626322061020ba0c7900282b4220b4a592761efa29a835350fbc9c2717cc384c1a5f9ef24b7459b0c31d025d0c2c4800
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.
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
MT14 Portatil 📡 (mtp1) Primary 0.000s
Reference 		-25.0 dBm 8.25 dB 0 MediumSlow 2025-10-06 11:40:23 Current
MT14 Portatil 📡 (mtp1) -52.036s
Before 		-25.0 dBm 8.25 dB 0 MediumSlow 2025-10-06 11:39:31 View
MT14 Portatil 📡 (mtp1) -29.015s
Before 		-25.0 dBm 8.25 dB 0 MediumSlow 2025-10-06 11:39:54 View
MT14 Portatil 📡 (mtp1) +14.020s
After 		-25.0 dBm 8.25 dB 0 MediumSlow 2025-10-06 11:40:37 View
MT14 Portatil 📡 (mtp1) +35.043s
After 		-25.0 dBm 8.25 dB 0 MediumSlow 2025-10-06 11:40:58 View
MT14 Portatil 📡 (mtp1) +57.082s
After 		-25.0 dBm 8.25 dB 0 MediumSlow 2025-10-06 11:41:20 View
MT14 Portatil 📡 (mtp1) +69.088s
After 		-25.0 dBm 8.25 dB 0 MediumSlow 2025-10-06 11:41:32 View
MT14 Portatil 📡 (mtp1) +70.091s
After 		-25.0 dBm 8.25 dB 0 MediumSlow 2025-10-06 11:41:33 View
MT14 Portatil 📡 (mtp1) +77.101s
After 		-25.0 dBm 8.25 dB 0 MediumSlow 2025-10-06 11:41:40 View
9

Total Receptions

1

Unique Gateways