diff --git a/inc/relation.constant.php b/inc/relation.constant.php
index 1fe1aa21578..3aeb3e1266d 100644
--- a/inc/relation.constant.php
+++ b/inc/relation.constant.php
@@ -989,7 +989,7 @@
         '_glpi_networkportaggregates'     => 'networkports_id',
         '_glpi_networkportaliases'        => 'networkports_id',
         'glpi_networkportaliases'         => 'networkports_id_alias',
-        'glpi_networkportconnectionlogs'  => [
+        '_glpi_networkportconnectionlogs'  => [
             'networkports_id_destination',
             'networkports_id_source',
         ],
diff --git a/src/CommonDBChild.php b/src/CommonDBChild.php
index 23e60fdd944..2d2ec12a00c 100644
--- a/src/CommonDBChild.php
+++ b/src/CommonDBChild.php
@@ -64,7 +64,7 @@ abstract class CommonDBChild extends CommonDBConnexity
 
 
     /**
-     * Get request cirteria to search for an item
+     * Get request criteria to search for an item
      *
      * @since 9.4
      *
diff --git a/src/NetworkPortConnectionLog.php b/src/NetworkPortConnectionLog.php
index 966671044cc..e6b5de9dfb5 100644
--- a/src/NetworkPortConnectionLog.php
+++ b/src/NetworkPortConnectionLog.php
@@ -37,15 +37,13 @@
 
 /**
  * Store ports connections log
- *
- * FIXME This class should inherit from CommonDBRelation, as it is linked
- * to both 'networkports_id_source' and 'networkports_id_destination'
  */
-class NetworkPortConnectionLog extends CommonDBChild
+class NetworkPortConnectionLog extends CommonDBRelation
 {
-    public static $itemtype        = 'NetworkPort';
-    public static $items_id        = 'networkports_id';
-    public $dohistory              = false;
+    public static $itemtype_1 = NetworkPort::class;
+    public static $items_id_1 = 'networkports_id_source';
+    public static $itemtype_2 = NetworkPort::class;
+    public static $items_id_2 = 'networkports_id_destination';
 
     public static function getTypeName($nb = 0)
     {
@@ -116,7 +114,7 @@ public function showForItem(NetworkPort $netport, $user_filters = [])
                     htmlescape(trim($cport->fields['name']) === '' ? __('Without name') : $cport->fields['name'])
                 );
 
-                $entries = [
+                $entries[] = [
                     'status' => '<i class="ti ' . $co_class . '" title="' . $title . '"></i>',
                     'date' => $row['date'],
                     'connected_item' => sprintf(
diff --git a/tests/functional/NetworkPortConnectionLogTest.php b/tests/functional/NetworkPortConnectionLogTest.php
new file mode 100644
index 00000000000..af9003c3b79
--- /dev/null
+++ b/tests/functional/NetworkPortConnectionLogTest.php
@@ -0,0 +1,110 @@
+<?php
+
+/**
+ * ---------------------------------------------------------------------
+ *
+ * GLPI - Gestionnaire Libre de Parc Informatique
+ *
+ * http://glpi-project.org
+ *
+ * @copyright 2015-2025 Teclib' and contributors.
+ * @licence   https://www.gnu.org/licenses/gpl-3.0.html
+ *
+ * ---------------------------------------------------------------------
+ *
+ * LICENSE
+ *
+ * This file is part of GLPI.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ * ---------------------------------------------------------------------
+ */
+
+namespace tests\units;
+
+use DbTestCase;
+
+/* Test for inc/networkport_networkport.class.php */
+
+class NetworkPortConnectionLogTest extends DbTestCase
+{
+    private function createPort(\CommonDBTM $asset, string $mac): \NetworkPort
+    {
+        $port = new \NetworkPort();
+        $nb_log = (int) countElementsInTable('glpi_logs');
+        $ports_id = $port->add([
+            'items_id'           => $asset->getID(),
+            'itemtype'           => $asset->getType(),
+            'entities_id'        => $asset->fields['entities_id'],
+            'is_recursive'       => 0,
+            'logical_number'     => 1,
+            'mac'                => $mac,
+            'instantiation_type' => 'NetworkPortEthernet',
+            'name'               => 'eth1',
+        ]);
+        $this->assertGreaterThan(0, (int) $ports_id);
+        $this->assertGreaterThan($nb_log, countElementsInTable('glpi_logs'));
+
+        return $port;
+    }
+
+    public function testLogs()
+    {
+        $this->login();
+        $neteq1 = getItemByTypeName(\NetworkEquipment::class, '_test_networkequipment_1');
+        $port_1 = $this->createPort($neteq1, '00:24:81:eb:c6:d3');
+        $ports_id_1 = $port_1->getID();
+
+        $neteq2 = getItemByTypeName(\NetworkEquipment::class, '_test_networkequipment_2');
+        $port_2 = $this->createPort($neteq2, '00:24:81:eb:c6:d4');
+        $ports_id_2 = $port_2->getID();
+
+        $wired = new \NetworkPort_NetworkPort();
+        $this->assertGreaterThan(
+            0,
+            $wired->add([
+                'networkports_id_1' => $ports_id_1,
+                'networkports_id_2' => $ports_id_2,
+            ])
+        );
+
+        $this->assertTrue($wired->getFromDBForNetworkPort($ports_id_1));
+        $this->assertTrue($wired->getFromDBForNetworkPort($ports_id_2));
+
+        $this->assertSame($ports_id_2, $wired->getOppositeContact($ports_id_1));
+        $this->assertSame($ports_id_1, $wired->getOppositeContact($ports_id_2));
+
+
+        //check connection log has been created
+        $connection_log = new \NetworkPortConnectionLog();
+        $logs = $connection_log->find();
+        $this->assertCount(1, $logs);
+        $log = array_pop($logs);
+        $this->assertSame(1, $log['connected']);
+        $this->assertSame($ports_id_1, $log['networkports_id_source']);
+        $this->assertSame($ports_id_2, $log['networkports_id_destination']);
+
+        //check for display
+        ob_start();
+        $connection_log->showForItem($port_1);
+        $contents = ob_get_clean();
+        $this->assertStringContainsString($neteq2->getLinkURL(), $contents);
+
+        ob_start();
+        $connection_log->showForItem($port_2);
+        $contents = ob_get_clean();
+        $this->assertStringContainsString($neteq1->getLinkURL(), $contents);
+    }
+}