Packet #2685852 Success

NODEINFO_APP packet from Zutphen Node 1 PD4JV - No & Ignore MQTT (ZN1) to Meshtastic c3bc (c3bc)

8
Total Receptions
7
Unique Gateways
4
Hop Count
101
Payload Bytes
Packet Information
Database ID: 2685852
Mesh Packet ID: 0x027889e0
Used for correlation across gateways
Timestamp: 2025-08-16 13:18:10 UTC
From Node: Zutphen Node 1 PD4JV - No & Ignore MQTT (ZN1)
To Node: Meshtastic c3bc (c3bc)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: HolRad (HlRd)
Channel: LongFast
RSSI: -126 dBm
SNR: -16.75 dBm
Hop Info: 4/4 hops
Start: 4, Limit: 0
Payload Data
Protocol: NODEINFO_APP
Size: 101 bytes
Decoded: Yes
Decoded Data:
Long Name:Zutphen Node 1 PD4JV - No & Ignore MQTT
Short Name:ZN1
Node ID:!3366633c
MAC Address:ZOgzZmM8
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:101 bytes
Gateway:!fa67186c
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:4 / 4
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 1 more...
Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !fa67186c
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (101 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 862348092
Source node ID 		uint32
to 1803731900
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 101 bytes size
hop_limit Not set uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi -126.0 dBm
Signal strength at gateway 		int32
rx_snr -16.75 dB
Signal quality at gateway 		float
rx_time 1755343089
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 1755343090.665543
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
Exposure Risks:
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (4 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !fa67186c
Signal Metrics: RSSI: -126.0 dBm
SNR: -16.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:101 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!3366633c", "long_name": "Zutphen Node 1 PD4JV - No & Ignore MQTT", "short_name": "ZN1", "macaddr": "ZOgzZmM8", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!fa67186c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 862348092, "to": 1803731900, "id": 41454048, "rx_time": 1755343089, "rx_snr": -16.75, "rx_rssi": -126, "hop_limit": 0, "hop_start": 4, "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": "0a0921333336363633336312275a75747068656e204e6f64652031205044344a56202d204e6f20262049676e6f7265204d5154541a035a4e31220664e83366633c282b4220479b75c8f8a5c3efb31ff41dae86057d758bf5be3a4c343dcbf2a805022cbc78", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!3366633c", "long_name": "Zutphen Node 1 PD4JV - No & Ignore MQTT", "short_name": "ZN1", "macaddr": "ZOgzZmM8", "hw_model": "HELTEC_V3", "public_key": "R5t1yPilw++zH/QdroYFfXWL9b46TDQ9y/KoBQIsvHg=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (101 bytes)
0a0921333336363633336312275a75747068656e204e6f64652031205044344a56202d204e6f20262049676e6f7265204d5154541a035a4e31220664e83366633c282b4220479b75c8f8a5c3efb31ff41dae86057d758bf5be3a4c343dcbf2a805022cbc78
Hex Analysis:
Size:101 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
HolRad (HlRd) Primary 0.000s
Reference 		-126.0 dBm -16.75 dB 4 LongFast 2025-08-16 13:18:10 Current
ALM-BC-Satisfaction (Ally) -9.157s
Before 		-109.0 dBm -15.25 dB 3 LongFast 2025-08-16 13:18:01 View
MeshNet.NL (GS0D) -6.505s
Before 		-110.0 dBm Unknown 4 LongFast 2025-08-16 13:18:04 View
MeshNet.NL (GS0D) -6.372s
Before 		-110.0 dBm Unknown 4 LongFast 2025-08-16 13:18:04 View
Rood af7c (af7c) -6.103s
Before 		-128.0 dBm -18.50 dB 3 LongFast 2025-08-16 13:18:04 View
PA3JH 🏠 (2.7.5) (3JH1) -5.747s
Before 		-103.0 dBm -10.00 dB 4 LongFast 2025-08-16 13:18:04 View
Matrixed H3 (MtxH) -4.987s
Before 		-122.0 dBm -12.75 dB 4 LongFast 2025-08-16 13:18:05 View
HLM Raaks Base 🏡🛜 (HLR1) -4.017s
Before 		-120.0 dBm -12.75 dB 4 LongFast 2025-08-16 13:18:06 View
8

Total Receptions

7

Unique Gateways