Packet #2675632 Success

NODEINFO_APP packet from RX/TX Air Kanaalstreek Node NL_NOORD (STKn) to Emmen Hackerspace base (MMb1)

1
Total Receptions
1
Unique Gateways
0
Hop Count
99
Payload Bytes
Packet Information
Database ID: 2675632
Mesh Packet ID: 0x4166042d
Used for correlation across gateways
Timestamp: 2025-08-16 11:38:41 UTC
From Node: RX/TX Air Kanaalstreek Node NL_NOORD (STKn)
To Node: Emmen Hackerspace base (MMb1)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: STKn Naar Internet ( Mr_T ) (N=i)
Channel: LongFast
RSSI: -49 dBm
SNR: 6.75 dBm
Hop Info: 0/7 hops
Start: 7, Limit: 7
Payload Data
Protocol: NODEINFO_APP
Size: 99 bytes
Decoded: Yes
Decoded Data:
Long Name:RX/TX Air Kanaalstreek Node NL_NOORD
Short Name:STKn
Node ID:!a2eb46b0
MAC Address:zI2i60aw
Hardware:STATION_G2
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:99 bytes
Gateway:!7c5a59c4
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:Unknown / 7
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...
Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !7c5a59c4
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (99 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2733328048
Source node ID 		uint32
to 2441623480
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 99 bytes size
hop_limit 7
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -49.0 dBm
Signal strength at gateway 		int32
rx_snr 6.75 dB
Signal quality at gateway 		float
rx_time 1755337119
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 Not set uint32
tx_after Not set uint32
timestamp 1755337121.5228202
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
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !7c5a59c4
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -49.0 dBm
SNR: 6.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:99 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!a2eb46b0", "long_name": "RX/TX Air Kanaalstreek Node NL_NOORD", "short_name": "STKn", "macaddr": "zI2i60aw", "hw_model": "STATION_G2" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!7c5a59c4", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2733328048, "to": 2441623480, "id": 1097204781, "rx_time": 1755337119, "rx_snr": 6.75, "rx_rssi": -49, "hop_limit": 7, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216132656234366230122452582f545820416972204b616e61616c73747265656b204e6f6465204e4c5f4e4f4f52441a0453544b6e2206cc8da2eb46b0281f422062f97a0a94d70cc0a1637dba0a7988c4e3fbb9f471f72c1d11ff0e6d00b60049", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!a2eb46b0", "long_name": "RX/TX Air Kanaalstreek Node NL_NOORD", "short_name": "STKn", "macaddr": "zI2i60aw", "hw_model": "STATION_G2", "public_key": "Yvl6CpTXDMChY326CnmIxOP7ufRx9ywdEf8ObQC2AEk=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (99 bytes)
0a09216132656234366230122452582f545820416972204b616e61616c73747265656b204e6f6465204e4c5f4e4f4f52441a0453544b6e2206cc8da2eb46b0281f422062f97a0a94d70cc0a1637dba0a7988c4e3fbb9f471f72c1d11ff0e6d00b60049
Hex Analysis:
Size:99 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 Channel Timestamp Actions
STKn Naar Internet ( Mr_T ) (N=i) Primary 0.000s
Reference 		-49.0 dBm 6.75 dB 0 LongFast 2025-08-16 11:38:41 Current
No other receptions found within ±2 seconds
1

Total Receptions

1

Unique Gateways