Packet #957037 Success

NODEINFO_APP packet from Ka0s Cardputer ADV (Kard) to N4CBT Mesh I (CBT1)

1
Total Receptions
1
Unique Gateways
0
Hop Count
84
Payload Bytes
Packet Information
Database ID: 957037
Mesh Packet ID: 0xf0a50137
Used for correlation across gateways
Timestamp: 2026-03-19 06:55:08 UTC
From Node: Ka0s Cardputer ADV (Kard)
To Node: N4CBT Mesh I (CBT1)
Success: Processed
Protocol: NODEINFO_APP
Port: 4
Gateway: GSMC TATTNALL GAmesh.net (GSMT)
Channel: LongFast
RSSI: -30 dBm
SNR: 6.0 dBm
Hop Info: 0/7 hops
Start: 7, Limit: 7
Relay Node: a8 Kard
Last byte of the last hop that relayed this packet - Candidate source node(s) based on 0-hop direct receptions
Payload Data
Protocol: NODEINFO_APP
Size: 84 bytes
Decoded: Yes
Decoded Data:
Long Name:Ka0s Cardputer ADV
Short Name:Kard
Node ID:!db5583a8
MAC Address:EFHbVYOo
Hardware:PRIVATE_HW
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:!da757888
Channel:LongFast
Payload Type:NODEINFO_APP
Hop Count:Unknown / 7
Privacy Summary
Exposure Level:
Direct Message
Privacy Features:
✓ Direct LoRa transmission (not via MQTT)
✓ Targeted to specific node
+ 2 more...
Exposure Risks:
⚠ Default channel - no encryption
⚠ Packet visible to MQTT subscribers
+ 1 more...
MQTT ServiceEnvelope Fields

MQTT ServiceEnvelope contains the MeshPacket plus routing metadata

FieldValue
gateway_id !da757888
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 3679814568
Source node ID 		uint32
to 1980879602
Target node ID 		uint32
decoded.portnum 4
NODEINFO_APP 		enum
decoded.payload_length 84 bytes size
hop_limit 7
Remaining hops allowed 		uint32
hop_start 7
Initial hop limit 		uint32
hops_taken 0
Calculated: hop_start - hop_limit 		derived
rx_rssi -30.0 dBm
Signal strength at gateway 		int32
rx_snr 6.00 dB
Signal quality at gateway 		float
rx_time 1773903307
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 168
Relay node ID 		uint32
tx_after Not set uint32
timestamp 1773903308.5219202
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
  • ✓ Zero-hop: direct from source to MQTT gateway
Exposure Risks:
  • ⚠ Default channel - no encryption
  • ⚠ Packet visible to MQTT subscribers
  • ⚠ RF signal metrics exposed (location inference possible)
MQTT-Specific Fields
Gateway ID: !da757888
Zero Hop Policy: Enabled
Direct gateway connection
Signal Metrics: RSSI: -30.0 dBm
SNR: 6.00 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": "!db5583a8", "long_name": "Ka0s Cardputer ADV", "short_name": "Kard", "macaddr": "EFHbVYOo", "hw_model": "PRIVATE_HW" }
Complete Protobuf Decode (JSON)
{ "service_envelope": { "gateway_id": "!da757888", "channel_id": "LongFast", "packet": "MeshPacket (see mesh_packet below)" }, "mesh_packet": { "from": 3679814568, "to": 1980879602, "id": 4037345591, "rx_time": 1773903307, "rx_snr": 6.0, "rx_rssi": -30, "hop_limit": 7, "hop_start": 7, "via_mqtt": 0, "want_ack": 0, "priority": 0, "delayed": 0, "channel_index": null, "pki_encrypted": 0, "next_hop": 0, "relay_node": 168, "tx_after": 0, "decoded": { "portnum": 4, "payload": "0a0921646235353833613812124b61307320436172647075746572204144561a044b61726422061051db5583a828ff014220cd32db4daf427a86276c079f6f5eebd24157b4e9decbbb2656e53a1a0c20630d4800", "want_response": null, "dest": null, "source": null, "request_id": null, "reply_id": null, "emoji": null, "parsed_payload": { "id": "!db5583a8", "long_name": "Ka0s Cardputer ADV", "short_name": "Kard", "macaddr": "EFHbVYOo", "hw_model": "PRIVATE_HW", "public_key": "zTLbTa9CeoYnbAefb17r0kFXtOney7smVuU6GgwgYw0=", "is_unmessagable": false, "type": "protobuf", "portnum": "NODEINFO_APP", "message_class": "User" } } } }
Raw Packet Data (84 bytes)
0a0921646235353833613812124b61307320436172647075746572204144561a044b61726422061051db5583a828ff014220cd32db4daf427a86276c079f6f5eebd24157b4e9decbbb2656e53a1a0c20630d4800
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 Relay Channel Timestamp Actions
GSMC TATTNALL GAmesh.net (GSMT) Primary 0.000s
Reference 		-30.0 dBm 6.00 dB 0 a8 Kard LongFast 2026-03-19 06:55:08 UTC Current
No other receptions found within ±2 seconds
1

Total Receptions

1

Unique Gateways