diff --git a/cfg_checker/modules/network/__init__.py b/cfg_checker/modules/network/__init__.py
index 736be50..19c0b6b 100644
--- a/cfg_checker/modules/network/__init__.py
+++ b/cfg_checker/modules/network/__init__.py
@@ -1,3 +1,5 @@
+#    Author: Alex Savatieiev (osavatieiev@mirantis.com; a.savex@gmail.com)
+#    Copyright 2019-2022 Mirantis, Inc.
 from cfg_checker.common import logger_cli
 from cfg_checker.common.settings import ENV_TYPE_SALT, ENV_TYPE_KUBE
 from cfg_checker.common.exception import CheckerException
diff --git a/cfg_checker/modules/network/checker.py b/cfg_checker/modules/network/checker.py
index 0b336f2..ee28e25 100644
--- a/cfg_checker/modules/network/checker.py
+++ b/cfg_checker/modules/network/checker.py
@@ -1,3 +1,5 @@
+#    Author: Alex Savatieiev (osavatieiev@mirantis.com; a.savex@gmail.com)
+#    Copyright 2019-2022 Mirantis, Inc.
 from cfg_checker.common import logger_cli
 from cfg_checker.modules.network.mapper import SaltNetworkMapper, \
     KubeNetworkMapper
diff --git a/cfg_checker/modules/network/mapper.py b/cfg_checker/modules/network/mapper.py
index c853724..54ce630 100644
--- a/cfg_checker/modules/network/mapper.py
+++ b/cfg_checker/modules/network/mapper.py
@@ -1,3 +1,5 @@
+#    Author: Alex Savatieiev (osavatieiev@mirantis.com; a.savex@gmail.com)
+#    Copyright 2019-2022 Mirantis, Inc.
 import ipaddress
 import json
 from copy import deepcopy
diff --git a/cfg_checker/modules/network/network_errors.py b/cfg_checker/modules/network/network_errors.py
index 63966a8..6925048 100644
--- a/cfg_checker/modules/network/network_errors.py
+++ b/cfg_checker/modules/network/network_errors.py
@@ -1,3 +1,5 @@
+#    Author: Alex Savatieiev (osavatieiev@mirantis.com; a.savex@gmail.com)
+#    Copyright 2019-2022 Mirantis, Inc.
 import itertools
 
 from cfg_checker.helpers.errors import ErrorIndex
diff --git a/cfg_checker/modules/network/pinger.py b/cfg_checker/modules/network/pinger.py
index 60c80cc..e53f75f 100644
--- a/cfg_checker/modules/network/pinger.py
+++ b/cfg_checker/modules/network/pinger.py
@@ -1,3 +1,5 @@
+#    Author: Alex Savatieiev (osavatieiev@mirantis.com; a.savex@gmail.com)
+#    Copyright 2019-2022 Mirantis, Inc.
 import ipaddress
 import json