Packet #3065160 Success

NODEINFO_APP packet from CT2IUL-8 🇵🇹 (IUL1) to Meshtastic 97f4 (97f4)

1
Total Receptions
1
Unique Gateways
2
Hop Count
84
Payload Bytes
Packet Information
Database ID: 3065160
Mesh Packet ID: 0x35fd2574
Used for correlation across gateways
Timestamp: 2026-03-22 15:52:04 UTC
From Node: CT2IUL-8 🇵🇹 (IUL1)
To Node: Meshtastic 97f4 (97f4)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: Sao Bras-Base 🇵🇹 (0778)
Channel: LongFast
RSSI: -111 dBm
SNR: -2.5 dBm
Hop Info: 2/5 hops
Start: 5, Limit: 3
Payload Data
Protocol: NODEINFO_APP
Size: 84 bytes
Decoded: Yes
Decoded Data:
Long Name:CT2IUL-8 🇵🇹
Short Name:IUL1
Node ID:!d2f7d621
MAC Address:2+fS99Yh
Hardware:TRACKER_T1000_E
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:84 bytes
Gateway:!040a0778
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:2 / 5
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 1 more...
Exposure Risks:
âš  Default channel - no encryption
âš  Packet visible to MQTT subscribers
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !040a0778
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (84 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3539457569
Source node ID 		uint32
to 2956826612
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 84 bytes size
hop_limit 3
Remaining hops allowed 		uint32
hop_start 5
Initial hop limit 		uint32
hops_taken 2
Calculated: hop_start - hop_limit 		derived
rx_rssi -111.0 dBm
Signal strength at gateway 		int32
rx_snr -2.50 dB
Signal quality at gateway 		float
rx_time 1774194714
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 Not set uint32
pki_encrypted False
Standard encryption 		bool
next_hop Not set uint32
relay_node 224
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1774194724.9435444
Unix timestamp 		uint32
MQTT Privacy & Exposure Analysis

Analysis of privacy features and exposure risks when packet is shared via MQTT

Exposure Level: Direct Message
Privacy Features:
  • ✓ Direct LoRa transmission (not via MQTT)
  • ✓ Targeted to specific node
  • ✓ Gateway node ID tracked
Exposure Risks:
  • âš  Default channel - no encryption
  • âš  Packet visible to MQTT subscribers
  • âš  Multi-hop path visible (2 hops)
  • âš  RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !040a0778
Signal Metrics: RSSI: -111.0 dBm
SNR: -2.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:84 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!d2f7d621", "long_name": "CT2IUL-8 🇵🇹", "short_name": "IUL1", "macaddr": "2+fS99Yh", "hw_model": "TRACKER_T1000_E" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!040a0778", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3539457569, "to": 2956826612, "id": 905782644, "rx_time": 1774194714, "rx_snr": -2.5, "rx_rssi": -111, "hop_limit": 3, "hop_start": 5, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 224, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216432663764363231121143543249554c2d3820f09f87b5f09f87b91a0449554c312206dbe7d2f7d6212847380142202fb8705a5afd076e4b4637185aec6b60450bf035f50197daf799127bdc65a8794800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!d2f7d621", "long_name": "CT2IUL-8 🇵🇹", "short_name": "IUL1", "macaddr": "2+fS99Yh", "hw_model": "TRACKER_T1000_E", "role": "CLIENT_MUTE", "public_key": "L7hwWlr9B25LRjcYWuxrYEUL8DX1AZfa95kSe9xlqHk=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (84 bytes)
0a09216432663764363231121143543249554c2d3820f09f87b5f09f87b91a0449554c312206dbe7d2f7d6212847380142202fb8705a5afd076e4b4637185aec6b60450bf035f50197daf799127bdc65a8794800
Hex Analysis:
Size:84 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 Channel Timestamp Actions
Sao Bras-Base 🇵🇹 (0778) Primary 0.000s
Reference 		-111.0 dBm -2.50 dB 2 LongFast 2026-03-22 15:52:04 Current
No other receptions found within ±2 seconds
1

Total Receptions

1

Unique Gateways