Packet #39115530 Success

NODEINFO_APP packet from SKYB - LongFast (SKYB) to !ffffffff

1
Total Receptions
1
Unique Gateways
1
Hop Count
83
Payload Bytes
Packet Information
Database ID: 39115530
Mesh Packet ID: 0x7f00de3f
Used for correlation across gateways
Timestamp: 2026-05-15 10:21:07 UTC
From Node: SKYB - LongFast (SKYB)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: SKYC - MixPreset - MQTT (SKYC)
Channel: LongFast
RSSI: Unknown
SNR: Unknown
Hop Info: 1/7 hops
Start: 7, Limit: 6
Relay Node: 78 SKYZ
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: 83 bytes
Decoded: Yes
Decoded Data:
Long Name:SKYB - LongFast
Short Name:SKYB
Node ID:!66f1c31d
MAC Address:xNJm8cMd
Hardware:NRF52_UNKNOWN
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:83 bytes
Gateway:!b2a7808c
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:1 / 7
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
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !b2a7808c
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (83 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 1727120157
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 83 bytes size
hop_limit 6
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 1
Calculated: hop_start - hop_limit 		derived
rx_rssi Not set int32
rx_snr Not set float
rx_time 1778840466
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority 64
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 120
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1778840467.201202
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)
  • ✓ 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 (1 hops)
MQTT-Specific Fields
Gateway ID: !b2a7808c
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:83 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!66f1c31d", "long_name": "SKYB - LongFast ", "short_name": "SKYB", "macaddr": "xNJm8cMd", "hw_model": "NRF52_UNKNOWN" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!b2a7808c", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 1727120157, "to": 4294967295, "id": 2130763327, "rx_time": 1778840466, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 6, "hop_start": 7, "via_mqtt": false, "want_ack": false, "priority": 64, "delayed": 0, "channel_index": null, "pki_encrypted": false, "next_hop": 0, "relay_node": 120, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a092136366631633331641210534b5942202d204c6f6e6746617374201a04534b59422206c4d266f1c31d2824380c4220b8ea60b45108b93618d513daffde0b3a72300e12364a3163e48506457834fc454800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!66f1c31d", "long_name": "SKYB - LongFast ", "short_name": "SKYB", "macaddr": "xNJm8cMd", "hw_model": "NRF52_UNKNOWN", "role": "CLIENT_BASE", "public_key": "uOpgtFEIuTYY1RPa/94LOnIwDhI2SjFj5IUGRXg0/EU=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (83 bytes)
0a092136366631633331641210534b5942202d204c6f6e6746617374201a04534b59422206c4d266f1c31d2824380c4220b8ea60b45108b93618d513daffde0b3a72300e12364a3163e48506457834fc454800
Hex Analysis:
Size:83 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 Relay Channel Timestamp Actions
SKYC - MixPreset - MQTT (SKYC) Primary 0.000s
Reference 		Unknown Unknown 1 78 SKYZ LongFast 2026-05-15 10:21:07 UTC Current
No other receptions found within ±2 seconds
1

Total Receptions

1

Unique Gateways