ldc-web/app/Models/LDCNetwork.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

class LDCNetwork extends Model
{

    /**
     * The attributes that should be cast.
     *
     * @var array
     */
    protected $casts = [
        'cidr' => 'encrypted',
        'first_ip' => 'encrypted',
        'last_ip' => 'encrypted',
    ];

    /**
     * The table associated with the model.
     *
     * @var string
     */
    protected $table = 'ldc_networks';

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
        'cidr', 'first_ip', 'last_ip'
    ];
}