diff --git a/sipa/blueprints/__init__.py b/sipa/blueprints/__init__.py
index a1576c12..4b86f5b6 100644
--- a/sipa/blueprints/__init__.py
+++ b/sipa/blueprints/__init__.py
@@ -6,3 +6,4 @@
 from .news import bp_news
 from .hooks import bp_hooks
 from .register import bp_register
+from .control import bp_control
diff --git a/sipa/blueprints/control.py b/sipa/blueprints/control.py
new file mode 100644
index 00000000..9a198b34
--- /dev/null
+++ b/sipa/blueprints/control.py
@@ -0,0 +1,34 @@
+
+from collections import OrderedDict
+import logging
+from datetime import datetime
+
+from babel.numbers import format_currency
+from flask import Blueprint, render_template, url_for, redirect, flash, abort, request, current_app
+from flask_babel import format_date, gettext
+from flask_login import current_user, login_required
+from flask_wtf import FlaskForm
+from markupsafe import Markup
+
+bp_control = Blueprint('control', __name__, url_prefix='/control')
+@bp_control.route("/port", methods=['GET', 'POST'])
+def check_port():
+    """
+    returns json with all the port forwardings
+    """
+    if not request.form.get("port"):
+        return 'port nicht in Textfeld'
+    if not request.form["port"].isnumeric():
+        return gettext('der Port muss eine Nummer sein')
+    if int(request.form["port"]) < 1:
+        return gettext('der Port muss größer als 0 sein')
+    if int(request.form["port"]) > 65535:
+        return gettext('der Port muss kleiner als 65536 sein')
+    return ""
+
+@bp_control.route("/ip", methods=['GET', 'POST'])
+def checks_ip_address():
+    """
+    checks rather the given ip address is valid
+    """
+    pass
\ No newline at end of file
diff --git a/sipa/initialization.py b/sipa/initialization.py
index fdc259f0..d9795ef3 100644
--- a/sipa/initialization.py
+++ b/sipa/initialization.py
@@ -12,6 +12,7 @@
 
 from sipa.babel import possible_locales, save_user_locale_setting, select_locale
 from sipa.base import IntegerConverter, login_manager
+from sipa.blueprints import bp_control
 from sipa.blueprints.usersuite import get_attribute_endpoint
 from sipa.defaults import DEFAULT_CONFIG
 from sipa.flatpages import CategorizedFlatPages
@@ -69,6 +70,7 @@ def init_app(app, **kwargs):
     app.register_blueprint(bp_news)
     app.register_blueprint(bp_hooks)
     app.register_blueprint(bp_register)
+    app.register_blueprint(bp_control)
 
     logger.debug('Registering Jinja globals')
     form_label_width = 3