Packet #3380490 Success

NODEINFO_APP packet from K2XAP Gateway (XAPg) to !ffffffff

2
Total Receptions
2
Unique Gateways
0
Hop Count
80
Payload Bytes
Packet Information
Database ID: 3380490
Mesh Packet ID: 0xefc4050f
Used for correlation across gateways
Timestamp: 2025-12-10 18:42:46 UTC
From Node: K2XAP Gateway (XAPg)
To Node: !ffffffff (ffff)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: ClaremontWx.net (CmWx)
Channel: LongFast
RSSI: -32 dBm
SNR: 6.75 dBm
Hop Info: 0/0 hops
Start: 0, Limit: 0
Relay Node: None
Payload Data
Protocol: NODEINFO_APP
Size: 80 bytes
Decoded: Yes
Decoded Data:
Long Name:K2XAP Gateway
Short Name:XAPg
Node ID:!cb9be279
MAC Address:yQnLm+J5
Hardware:RAK4631
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:80 bytes
Gateway:!27532a57
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:Unknown / Unknown
Privacy Summary
Exposure Level:
Broadcast
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Gateway node ID tracked
+ 1 more...
Exposure Risks:
⚠ Visible to all nodes on channel
⚠ Default channel - no encryption
+ 2 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !27532a57
Node ID format
channel_id LongFast
Default public channel
packet MeshPacket (80 bytes)
Contains the actual mesh network packet
MeshPacket Fields

Core mesh packet with routing and payload information

FieldValueType
from 3415990905
Source node ID 		uint32
to 4294967295 (Broadcast)
Visible to all nodes 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 80 bytes size
hop_limit Not set uint32
hop_start Not set uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -32.0 dBm
Signal strength at gateway 		int32
rx_snr 6.75 dB
Signal quality at gateway 		float
rx_time 1765392263
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 Not set uint32
tx_after Not set uint32
timestamp 1765392166.1960335
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
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Visible to all nodes on channel
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !27532a57
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -32.0 dBm
SNR: 6.75 dB
Complete Payload Analysis

Detailed breakdown of all payload fields and decoded data

Payload Metadata:
Protocol:NODEINFO_APP
Size:80 bytes
Decoded: Yes
Complete Payload Data (JSON):
{ "id": "!cb9be279", "long_name": "K2XAP Gateway", "short_name": "XAPg", "macaddr": "yQnLm+J5", "hw_model": "RAK4631" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!27532a57", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3415990905, "to": 4294967295, "id": 4022600975, "rx_time": 1765392263, "rx_snr": 6.75, "rx_rssi": -32, "hop_limit": 0, "hop_start": 0, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 0, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a09216362396265323739120d4b3258415020476174657761791a04584150672206c909cb9be27928093801422064064a4de0f79ddd0a74a279f6d50a6a0e23fef24e8c934330c73b00d50e340c4801", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!cb9be279", "long_name": "K2XAP Gateway", "short_name": "XAPg", "macaddr": "yQnLm+J5", "hw_model": "RAK4631", "role": "CLIENT_MUTE", "public_key": "ZAZKTeD3nd0KdKJ59tUKag4j/vJOjJNDMMc7ANUONAw=", "is_unmessagable": true, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (80 bytes)
0a09216362396265323739120d4b3258415020476174657761791a04584150672206c909cb9be27928093801422064064a4de0f79ddd0a74a279f6d50a6a0e23fef24e8c934330c73b00d50e340c4801
Hex Analysis:
Size:80 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
ClaremontWx.net (CmWx) Primary 0.000s
Reference 		-32.0 dBm 6.75 dB 0 - LongFast 2025-12-10 18:42:46 UTC Current
K2XAP Gateway (XAPg) -1.271s
Before 		Unknown Unknown 0 79 XAPg LongFast 2025-12-10 18:42:44 UTC View
2

Total Receptions

2

Unique Gateways