Packet #27431574 Success

NODEINFO_APP packet from SHK-CL-868 (SHK1) to !ffffffff

10
Total Receptions
10
Unique Gateways
4
Hop Count
73
Payload Bytes
Packet Information
Database ID: 27431574
Mesh Packet ID: 0x514a26f6
Used for correlation across gateways
Timestamp: 2025-12-13 16:53:34 UTC
From Node: SHK-CL-868 (SHK1)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: FCS t1000e (FCSt)
Channel: LongFast
RSSI: -108 dBm
SNR: -3.5 dBm
Hop Info: 4/4 hops
Start: 4, Limit: 0
Relay Node: ae
Last byte of the last hop that relayed this packet
Payload Data
Protocol: NODEINFO_APP
Size: 73 bytes
Decoded: Yes
Decoded Data:
Long Name:SHK-CL-868
Short Name:SHK1
Node ID:!15ba1dab
MAC Address:x1UVuh2r
Hardware:T_ECHO
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:73 bytes
Gateway:!b94fda02
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:4 / 4
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
+ 3 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !b94fda02
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (73 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 364518827
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 73 bytes size
hop_limit Not set uint32
hop_start 4
Initial hop limit 		uint32
hops_taken 4
Calculated: hop_start - hop_limit 		derived
rx_rssi -108.0 dBm
Signal strength at gateway 		int32
rx_snr -3.50 dB
Signal quality at gateway 		float
rx_time 1765644813
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 174
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1765644814.3405035
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 (4 hops)
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !b94fda02
Signal Metrics: RSSI: -108.0 dBm
SNR: -3.50 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:73 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!15ba1dab", "long_name": "SHK-CL-868", "short_name": "SHK1", "macaddr": "x1UVuh2r", "hw_model": "T_ECHO" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!b94fda02", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 364518827, "to": 4294967295, "id": 1363814134, "rx_time": 1765644813, "rx_snr": -3.5, "rx_rssi": -108, "hop_limit": 0, "hop_start": 4, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 174, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09213135626131646162120a53484b2d434c2d3836381a0453484b312206c75515ba1dab280742207b71f0041e8ca9b5ff4901797c505f3cce44bcb0caa2901030e7ed76f3dd6154", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!15ba1dab", "long_name": "SHK-CL-868", "short_name": "SHK1", "macaddr": "x1UVuh2r", "hw_model": "T_ECHO", "public_key": "e3HwBB6MqbX/SQF5fFBfPM5EvLDKopAQMOftdvPdYVQ=", "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (73 bytes)
0a09213135626131646162120a53484b2d434c2d3836381a0453484b312206c75515ba1dab280742207b71f0041e8ca9b5ff4901797c505f3cce44bcb0caa2901030e7ed76f3dd6154
Hex Analysis:
Size:73 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 Relay Channel Timestamp Actions
FCS t1000e (FCSt) Primary 0.000s
Reference 		-108.0 dBm -3.50 dB 4 ae LongFast 2025-12-13 16:53:34 UTC Current
CODY-ConcaDeTremp-GW-868 (CODY) -6.643s
Before 		-128.0 dBm -19.50 dB 1 0e LongFast 2025-12-13 16:53:27 UTC View
T1000Edo (TEdo) -3.508s
Before 		-111.0 dBm -17.75 dB 3 98 SHER LongFast 2025-12-13 16:53:30 UTC View
Leo Meshi (LMSI) -3.034s
Before 		-25.0 dBm 5.25 dB 3 b5 LongFast 2025-12-13 16:53:31 UTC View
Makinazo-2📶📡🌐 (MAK2) -1.563s
Before 		-123.0 dBm -17.75 dB 3 8f LongFast 2025-12-13 16:53:32 UTC View
MontcadaCentro-CL-868🗼🌐 (d9e8) -1.366s
Before 		-75.0 dBm 5.50 dB 3 18 SPAX LongFast 2025-12-13 16:53:32 UTC View
EA3HGK 🔗 Sant Llorenç d'Hortons (Gio) -0.019s
Before 		-83.0 dBm 5.75 dB 4 ae Gio LongFast 2025-12-13 16:53:34 UTC View
Rubí - FCSv4 (FCS4) +0.982s
After 		-96.0 dBm -10.75 dB 4 64 LongFast 2025-12-13 16:53:35 UTC View
CV-Oriol-GW-8 📡 (CVO2) +1.338s
After 		-103.0 dBm 4.00 dB 4 5c CV05 LongFast 2025-12-13 16:53:35 UTC View
EB3FWC-Girona📡-GW-868 (EB3F) +1.591s
After 		-89.0 dBm 1.25 dB 4 - LongFast 2025-12-13 16:53:35 UTC View
10

Total Receptions

10

Unique Gateways