Packet #2021821 Success

ADMIN_APP packet from EA2FER-1-CL-868-8570 (📡) to Unknown

2
Total Receptions
2
Unique Gateways
0
Hop Count
24
Payload Bytes
Packet Information
Database ID: 2021821
Mesh Packet ID: 0x6b5d437e
Used for correlation across gateways
Timestamp: 2025-06-27 15:16:17 UTC
From Node: EA2FER-1-CL-868-8570 (📡)
To Node: Unknown
Broadcast message
Success: Processed
Protocol: ADMIN_APP
Port: 6
Gateway: EA2FER-2-CL-868-b174 (🔊)
Channel: LongFast
RSSI: -17 dBm
SNR: 7.25 dBm
Hop Info: 0/3 hops
Start: 3, Limit: 3
Payload Data
Protocol: ADMIN_APP
Size: 24 bytes
Decoded: Yes
Decoded Data:
{
  "set_channel": {
    "index": 2,
    "settings": {
      "name": "Zaragoza",
      "id": 2
    },
    "role": "SECONDARY"
  },
  "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:24 bytes
Gateway:!849bb174
Channel:LongFast
Payload Type:ADMIN_APP
Hop Count:Unknown / 3
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Acknowledgment requested
+ 2 more...
Exposure Risks:
âš  Visible to all nodes on channel
âš  Default channel - no encryption
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !849bb174
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (24 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2632615280
Source node ID 		uint32
to Not set uint32
decoded.portnum 6
ADMIN_APP 		enum
decoded.payload_length 24 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 3
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -17.0 dBm
Signal strength at gateway 		int32
rx_snr 7.25 dB
Signal quality at gateway 		float
rx_time 1751037375
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 112
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1751037377.3872778
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
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • âš  Visible to all nodes on channel
  • âš  Default channel - no encryption
  • âš  Packet visible to MQTT subscribers
  • âš  RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Want ack: True
Gateway ID: !849bb174
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -17.0 dBm
SNR: 7.25 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:ADMIN_APP
Size:24 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "set_channel": { "index": 2, "settings": { "name": "Zaragoza", "id": 2 }, "role": "SECONDARY" }, "type": "protobuf", "portnum": "ADMIN_APP", "message_class": "AdminMessage" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!849bb174", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2632615280, "to": 0, "id": 1801274238, "rx_time": 1751037375, "rx_snr": 7.25, "rx_rssi": -17, "hop_limit": 3, "hop_start": 3, "via_mqtt": 0, "want_ack": 1, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 112, "tx_after": 0, "decoded": { "portnum": 6, "payload": "8a02150802120f1a085a617261676f7a6125020000001802", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "set_channel": { "index": 2, "settings": { "name": "Zaragoza", "id": 2 }, "role": "SECONDARY" }, "type": "protobuf", "portnum": "ADMIN_APP", "message_class": "AdminMessage" } } } }
Raw Packet Data (24 bytes)
8a02150802120f1a085a617261676f7a6125020000001802
Hex Analysis:
Size:24 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
EA2FER-2-CL-868-b174 (🔊) Primary 0.000s
Reference 		-17.0 dBm 7.25 dB 0 LongFast 2025-06-27 15:16:17 Current
Meshtastic 1cc8 (1cc8) +0.753s
After 		-112.0 dBm -1.50 dB 0 LongFast 2025-06-27 15:16:18 View
2

Total Receptions

2

Unique Gateways