Issue #2014471: Drupal 8 version of IP Address Field

src/Plugin/migrate/field/FieldIpAddress.php

+<?php
+
+namespace Drupal\field_ipaddress\Plugin\migrate\field;
+
+use Drupal\migrate\Plugin\MigrationInterface;
+use Drupal\migrate_drupal\Plugin\migrate\field\FieldPluginBase;
+
+/**
+ * @MigrateField(
+ *   id = "field_ipaddress",
+ *   core = {7},
+ *   type_map = {
+ *      "field_ipaddress" = "ipaddress"
+ *   },
+ *   source_module = "field_ipaddress",
+ *   destination_module = "field_ipaddress",
+ * )
+ */
+class FieldIpAddress extends FieldPluginBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function defineValueProcessPipeline(MigrationInterface $migration, $field_name, $data) {
+    $process = [
+      'plugin' => 'sub_process',
+      'source' => $field_name,
+      'process' => [
+        'ip_start' => [
+          'plugin' => 'ipaddress_long_to_binary',
+          'source' => 'start',
+        ],
+        'ip_end' => [
+          'plugin' => 'ipaddress_long_to_binary',
+          'source' => 'end',
+        ],
+      ],
+    ];
+    $migration->mergeProcessOfProperty($field_name, $process);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFieldFormatterMap() {
+    return [
+      'field_ipaddress_shorthand' => 'ipaddress_default',
+      'field_ipaddress_cidr' => 'ipaddress_default',
+    ];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFieldWidgetMap() {
+    return [
+      'field_ipaddress_shorthand' => 'ipaddress_default',
+      'field_ipaddress_longhand' => 'ipaddress_default',
+      'field_ipaddress_cidr' => 'ipaddress_default',
+    ];
+  }
+
+}