Packet #13905910 Success

ADMIN_APP packet from Rubí - FCSv4 (FCS4) to Unknown

8
Total Receptions
8
Unique Gateways
4
Hop Count
10
Payload Bytes
Packet Information
Database ID: 13905910
Mesh Packet ID: 0xfa7a3b53
Used for correlation across gateways
Timestamp: 2025-10-06 20:20:27 UTC
From Node: Rubí - FCSv4 (FCS4)
To Node: Unknown
Broadcast message
Success: Processed
Protocol: ADMIN_APP
Port: 6
Gateway: CV-Oriol-GW-8 📡 (CVO2)
Channel: LongFast
RSSI: -101 dBm
SNR: 4.5 dBm
Hop Info: 4/7 hops
Start: 7, Limit: 3
Payload Data
Protocol: ADMIN_APP
Size: 10 bytes
Decoded: Yes
Decoded Data:
{
  "set_favorite_node": 3127196356,
  "type": "protobuf",
  "portnum": "ADMIN_APP",
  "message_class": "AdminMessage"
}
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:10 bytes
Gateway:!bc32b3b4
Channel:LongFast
Payload Type:ADMIN_APP
Hop Count:4 / 7
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Acknowledgment requested
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !bc32b3b4
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (10 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2996808928
Source node ID 		uint32
to Not set uint32
decoded.portnum 6
ADMIN_APP 		enum
decoded.payload_length 10 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi -101.0 dBm
Signal strength at gateway 		int32
rx_snr 4.50 dB
Signal quality at gateway 		float
rx_time 1759782026
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack True
Acknowledgment 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 92
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1759782027.5628173
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)
  • ✓ Acknowledgment requested
  • ✓ 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 (4 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Want ack: True
Gateway ID: !bc32b3b4
Signal Metrics: RSSI: -101.0 dBm
SNR: 4.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:ADMIN_APP
Size:10 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "set_favorite_node": 3127196356, "type": "protobuf", "portnum": "ADMIN_APP", "message_class": "AdminMessage" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!bc32b3b4", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2996808928, "to": 0, "id": 4202314579, "rx_time": 1759782026, "rx_snr": 4.5, "rx_rssi": -101, "hop_limit": 3, "hop_start": 7, "via_mqtt": 0, "want_ack": 1, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 92, "tx_after": 0, "decoded": { "portnum": 6, "payload": "b802c4f594d30baa0600", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "set_favorite_node": 3127196356, "type": "protobuf", "portnum": "ADMIN_APP", "message_class": "AdminMessage" } } } }
Raw Packet Data (10 bytes)
b802c4f594d30baa0600
Hex Analysis:
Size:10 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
CV-Oriol-GW-8 📡 (CVO2) Primary 0.000s
Reference 		-101.0 dBm 4.50 dB 4 LongFast 2025-10-06 20:20:27 Current
Rubí - FCSv4 (FCS4) -11.470s
Before 		Unknown Unknown 0 LongFast 2025-10-06 20:20:16 View
EA3KZ 01 - Terrassa (KZ01) -7.946s
Before 		-137.0 dBm -16.25 dB 0 LongFast 2025-10-06 20:20:19 View
L'Escala 7b90 (7b90) -0.472s
Before 		-120.0 dBm -13.25 dB 4 LongFast 2025-10-06 20:20:27 View
EB3FWC-Girona📡-GW-868 (EB3F) +0.223s
After 		-89.0 dBm -3.25 dB 4 LongFast 2025-10-06 20:20:27 View
g0maintt (g0mq) +0.780s
After 		-74.0 dBm 5.75 dB 4 LongFast 2025-10-06 20:20:28 View
XTEP-CL-868 ☀️ (XTEP) +0.786s
After 		-121.0 dBm -16.25 dB 3 LongFast 2025-10-06 20:20:28 View
RAFA Hermes 🛰️ (RHER) +1.183s
After 		-80.0 dBm 6.75 dB 5 LongFast 2025-10-06 20:20:28 View
8

Total Receptions

8

Unique Gateways