Packet #876809 Success

NODEINFO_APP packet from Artr Base 2 (Art2) to !ffffffff

2
Total Receptions
2
Unique Gateways
5
Hop Count
78
Payload Bytes
Packet Information
Database ID: 876809
Mesh Packet ID: 0x7bc3a5d3
Used for correlation across gateways
Timestamp: 2026-04-30 08:52:28 UTC
From Node: Artr Base 2 (Art2)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: FabLab Lübeck (FLHL)
Channel: LongFast
RSSI: -109 dBm
SNR: -14.25 dBm
Hop Info: 5/5 hops
Start: 5, Limit: 0
Relay Node: 4b FLAP
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: 78 bytes
Decoded: Yes
Decoded Data:
Long Name:Artr Base 2
Short Name:Art2
Node ID:!9e75f8a4
MAC Address:8J6edfik
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:78 bytes
Gateway:!69828534
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:5 / 5
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
MQTT ServiceEnvelope Fields

FieldValue
gateway_id !69828534
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (78 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Canonical MeshPacket view reconstructed from stored protobuf bytes.

FieldValueType
from 2658531492
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum NODEINFO_APP
NODEINFO_APP 		enum
decoded.payload_length 78 bytes size
hop_limit Not set uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 5
Calculated: hop_start - hop_limit 		derived
rx_rssi -109.0 dBm
Signal strength at gateway 		int32
rx_snr -14.25 dB
Signal quality at gateway 		float
rx_time 1777539147
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 8
Channel index 		uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 75
Relay node ID 		uint32
tx_after Not set uint32
timestamp Not set 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)
  • ✓ Gateway node ID tracked
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ Multi-hop path visible (5 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !69828534
Signal Metrics: RSSI: -109.0 dBm
SNR: -14.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:78 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!9e75f8a4", "long_name": "Artr Base 2", "short_name": "Art2", "macaddr": "8J6edfik", "hw_model": "HELTEC_V3" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "packet": { "from": 2658531492, "to": 4294967295, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhOWU3NWY4YTQSC0FydHIgQmFzZSAyGgRBcnQyIgbwnp51+KQoKzgCQiDbiDolDTOOQC6eW2hpdeKo7JyW/kK+WfXNhsOZIElQOUgA", "bitfield": 1 }, "id": 2076419539, "rx_time": 1777539147, "rx_snr": -14.25, "rx_rssi": -109, "hop_start": 5, "relay_node": 75, "transport_mechanism": "TRANSPORT_LORA" }, "channel_id": "LongFast", "gateway_id": "!69828534" }, "mesh_packet": { "from": 2658531492, "to": 4294967295, "channel": 8, "decoded": { "portnum": "NODEINFO_APP", "payload": "CgkhOWU3NWY4YTQSC0FydHIgQmFzZSAyGgRBcnQyIgbwnp51+KQoKzgCQiDbiDolDTOOQC6eW2hpdeKo7JyW/kK+WfXNhsOZIElQOUgA", "bitfield": 1, "parsed_payload": { "id": "!9e75f8a4", "long_name": "Artr Base 2", "short_name": "Art2", "macaddr": "8J6edfik", "hw_model": "HELTEC_V3", "role": "ROUTER", "public_key": "24g6JQ0zjkAunltoaXXiqOyclv5Cvln1zYbDmSBJUDk=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } }, "id": 2076419539, "rx_time": 1777539147, "rx_snr": -14.25, "rx_rssi": -109, "hop_start": 5, "relay_node": 75, "transport_mechanism": "TRANSPORT_LORA" } }
Raw Packet Data (78 bytes)
0a09213965373566386134120b41727472204261736520321a04417274322206f09e9e75f8a4282b38024220db883a250d338e402e9e5b686975e2a8ec9c96fe42be59f5cd86c399204950394800
Hex Analysis:
Size:78 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
FabLab Lübeck (FLHL) Primary 0.000s
Reference 		-109.0 dBm -14.25 dB 5 4b FLAP LongFast 2026-04-30 08:52:28 UTC Current
5 hops Gateways that received this packet after 5 hops
Frank HAL1 (HAL1) +0.105s
After 		-106.0 dBm -5.25 dB 5 6c LongFast 2026-04-30 08:52:28 UTC View
2

Total Receptions

2

Unique Gateways