Packet #17465 Success

TEXT_MESSAGE_APP packet from Meshtastic d2ac (d2ac) to !ffffffff

1
Total Receptions
1
Unique Gateways
0
Hop Count
11
Payload Bytes
Packet Information
Database ID: 17465
Mesh Packet ID: 0x73172f43
Used for correlation across gateways
Timestamp: 2025-12-03 08:50:40 UTC
From Node: Meshtastic d2ac (d2ac)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: TEXT_MESSAGE_APP
Port: 1
Gateway: Meshtastic d2ac (d2ac)
Channel: MediumFast
RSSI: Unknown
SNR: Unknown
Hop Info: 0/5 hops
Start: 5, Limit: 5
Relay Node: ac d2ac
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: TEXT_MESSAGE_APP
Size: 11 bytes
Decoded: Yes
Text Content:
Radio check
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:11 bytes
Gateway:!9ea3d2ac
Channel:MediumFast
Payload Type:TEXT_MESSAGE_APP
Hop Count:Unknown / 5
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Custom channel: MediumFast
+ 2 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Packet visible to MQTT subscribers
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !9ea3d2ac
Node ID format
channel_id MediumFast
packet MeshPacket (11 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 2661536428
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 1
TEXT_MESSAGE_APP 		enum
decoded.payload_length 11 bytes size
hop_limit 5
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi Not set int32
rx_snr Not set float
rx_time 1764751823
Receive timestamp 		fixed32
via_mqtt False
Direct LoRa transmission 		bool
want_ack False
No ACK requested 		bool
priority 100
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 172
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1764751840.15493
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)
  • ✓ Custom channel: MediumFast
  • ✓ Gateway node ID tracked
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Packet visible to MQTT subscribers
MQTT-Specific Fields
Gateway ID: !9ea3d2ac
Zero Hop Policy: Enabled
Direct gateway connection
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!9ea3d2ac", "channel_id": "MediumFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 2661536428, "to": 4294967295, "id": 1930899267, "rx_time": 1764751823, "rx_snr": 0.0, "rx_rssi": 0, "hop_limit": 5, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 100, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 172, "tx_after": 0, "decoded": { "portnum": 1, "payload": "526164696f20636865636b", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "text": "Radio check", "type": "text_message", "portnum": "TEXT_MESSAGE_APP" } } } }
Raw Packet Data (11 bytes)
526164696f20636865636b
Hex Analysis:
Size:11 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
Meshtastic d2ac (d2ac) Primary 0.000s
Reference 		Unknown Unknown 0 ac d2ac MediumFast 2025-12-03 08:50:40 UTC Current
No other receptions found within ±2 seconds
1

Total Receptions

1

Unique Gateways