diff --git a/abonapp/views.py b/abonapp/views.py
index 244ee60..5b3a6ad 100644
--- a/abonapp/views.py
+++ b/abonapp/views.py
@@ -27,6 +27,7 @@ from group_app.models import Group
 from guardian.shortcuts import get_objects_for_user, assign_perm
 from guardian.decorators import permission_required_or_403 as permission_required
 from djing.global_base_views import OrderingMixin, BaseListWithFiltering
+from djing import ping
 
 PAGINATION_ITEMS_PER_PAGE = getattr(settings, 'PAGINATION_ITEMS_PER_PAGE', 10)
 
@@ -696,7 +697,7 @@ def abon_ping(request):
         tm = Transmitter()
         ping_result = tm.ping(ip)
         if ping_result is None:
-            if mydefs.ping(ip, 10):
+            if ping(ip, 10):
                 status = True
                 text = '<span class="glyphicon glyphicon-ok"></span> %s' % _('ping ok')
         else:
diff --git a/agent/mod_mikrotik.py b/agent/mod_mikrotik.py
index a432c93..55abc9f 100644
--- a/agent/mod_mikrotik.py
+++ b/agent/mod_mikrotik.py
@@ -1,15 +1,16 @@
 # -*- coding: utf-8 -*-
+import re
 import socket
 import binascii
 from abc import ABCMeta
 from hashlib import md5
 from typing import List, Iterable, Optional, Tuple
 from .core import BaseTransmitter, NasFailedResult, NasNetworkError
-from mydefs import ping, singleton
+from mydefs import singleton
 from .structs import TariffStruct, AbonStruct, IpStruct, VectorAbon, VectorTariff
 from . import settings as local_settings
 from django.conf import settings
-import re
+from djing import ping
 
 DEBUG = getattr(settings, 'DEBUG', False)
 
diff --git a/djing/__init__.py b/djing/__init__.py
index 978be02..d278339 100644
--- a/djing/__init__.py
+++ b/djing/__init__.py
@@ -1,3 +1,5 @@
+import os
+import re
 import importlib
 from netaddr import mac_unix, mac_eui48
 
@@ -41,3 +43,11 @@ else:
     __version__ = _dist.version
 VERSION = __version__  # synonym
 default_app_config = 'abonapp.apps.AbonappConfig'
+
+
+def ping(ip_addr: str, count=1):
+    if re.match(IP_ADDR_REGEX, ip_addr):
+        response = os.system("`which ping` -4Anq -c%d -W1 %s > /dev/null" % (count, ip_addr))
+        return True if response == 0 else False
+    else:
+        return False
diff --git a/mydefs.py b/mydefs.py
index 92d6b6d..a70d3c9 100644
--- a/mydefs.py
+++ b/mydefs.py
@@ -4,7 +4,6 @@ from json import dumps
 import socket
 import struct
 from collections import Iterator
-import os
 from functools import wraps
 from django.http import HttpResponse, Http404, HttpResponseRedirect
 from django.shortcuts import redirect
@@ -118,11 +117,6 @@ def only_admins(fn):
     return wrapped
 
 
-def ping(hostname: str, count=1):
-    response = os.system("`which ping` -4Anq -c%d -W1 %s > /dev/null" % (count, hostname))
-    return True if response == 0 else False
-
-
 # Русифицированный вывод timedelta
 class RuTimedelta(timedelta):
     def __new__(cls, tm):