diff --git a/django/core/validators.py b/django/core/validators.py
index 322741be39..948ae28673 100644
--- a/django/core/validators.py
+++ b/django/core/validators.py
@@ -129,7 +129,7 @@ validate_email = EmailValidator()
 slug_re = re.compile(r'^[-a-zA-Z0-9_]+$')
 validate_slug = RegexValidator(slug_re, _("Enter a valid 'slug' consisting of letters, numbers, underscores or hyphens."), 'invalid')
 
-ipv4_re = re.compile(r'^\s*(25[0-5]|2[0-4]\d|[0-1]?\d?\d)(\.(25[0-5]|2[0-4]\d|[0-1]?\d?\d)){3}\s*$')
+ipv4_re = re.compile(r'^(25[0-5]|2[0-4]\d|[0-1]?\d?\d)(\.(25[0-5]|2[0-4]\d|[0-1]?\d?\d)){3}$')
 validate_ipv4_address = RegexValidator(ipv4_re, _('Enter a valid IPv4 address.'), 'invalid')
 
 
diff --git a/django/forms/fields.py b/django/forms/fields.py
index aa909a8aa5..277f0b093e 100644
--- a/django/forms/fields.py
+++ b/django/forms/fields.py
@@ -1096,9 +1096,10 @@ class IPAddressField(CharField):
     }
     default_validators = [validators.validate_ipv4_address]
 
-    def clean(self, value):
-        value = self.to_python(value).strip()
-        return super(IPAddressField, self).clean(value)
+    def to_python(self, value):
+        if value in EMPTY_VALUES:
+            return ''
+        return value.strip()
 
 
 class GenericIPAddressField(CharField):
@@ -1111,16 +1112,13 @@ class GenericIPAddressField(CharField):
         self.default_error_messages['invalid'] = invalid_error_message
         super(GenericIPAddressField, self).__init__(*args, **kwargs)
 
-    def clean(self, value):
-        value = self.to_python(value).strip()
-        return super(GenericIPAddressField, self).clean(value)
-
     def to_python(self, value):
         if value in validators.EMPTY_VALUES:
             return ''
+        value = value.strip()
         if value and ':' in value:
-                return clean_ipv6_address(value,
-                    self.unpack_ipv4, self.error_messages['invalid'])
+            return clean_ipv6_address(value,
+                self.unpack_ipv4, self.error_messages['invalid'])
         return value
 
 
diff --git a/tests/modeltests/validation/tests.py b/tests/modeltests/validation/tests.py
index dca99052e5..58b7b94e7f 100644
--- a/tests/modeltests/validation/tests.py
+++ b/tests/modeltests/validation/tests.py
@@ -116,54 +116,40 @@ class GenericIPAddressFieldTests(ValidationTestCase):
     def test_correct_generic_ip_passes(self):
         giptm = GenericIPAddressTestModel(generic_ip="1.2.3.4")
         self.assertEqual(None, giptm.full_clean())
-        giptm = GenericIPAddressTestModel(generic_ip=" 1.2.3.4 ")
-        self.assertEqual(None, giptm.full_clean())
         giptm = GenericIPAddressTestModel(generic_ip="2001::2")
         self.assertEqual(None, giptm.full_clean())
-        giptm = GenericIPAddressTestModel(generic_ip=" 2001::2 ")
-        self.assertEqual(None, giptm.full_clean())
 
     def test_invalid_generic_ip_raises_error(self):
         giptm = GenericIPAddressTestModel(generic_ip="294.4.2.1")
         self.assertFailsValidation(giptm.full_clean, ['generic_ip',])
-        giptm = GenericIPAddressTestModel(generic_ip="1.2.3 .4")
-        self.assertFailsValidation(giptm.full_clean, ['generic_ip',])
         giptm = GenericIPAddressTestModel(generic_ip="1:2")
         self.assertFailsValidation(giptm.full_clean, ['generic_ip',])
 
     def test_correct_v4_ip_passes(self):
         giptm = GenericIPAddressTestModel(v4_ip="1.2.3.4")
         self.assertEqual(None, giptm.full_clean())
-        giptm = GenericIPAddressTestModel(v4_ip=" 1.2.3.4 ")
-        self.assertEqual(None, giptm.full_clean())
 
     def test_invalid_v4_ip_raises_error(self):
         giptm = GenericIPAddressTestModel(v4_ip="294.4.2.1")
         self.assertFailsValidation(giptm.full_clean, ['v4_ip',])
-        giptm = GenericIPAddressTestModel(v4_ip="294.4 .2.1")
-        self.assertFailsValidation(giptm.full_clean, ['v4_ip',])
         giptm = GenericIPAddressTestModel(v4_ip="2001::2")
         self.assertFailsValidation(giptm.full_clean, ['v4_ip',])
 
     def test_correct_v6_ip_passes(self):
         giptm = GenericIPAddressTestModel(v6_ip="2001::2")
         self.assertEqual(None, giptm.full_clean())
-        giptm = GenericIPAddressTestModel(v6_ip=" 2001::2 ")
-        self.assertEqual(None, giptm.full_clean())
 
     def test_invalid_v6_ip_raises_error(self):
         giptm = GenericIPAddressTestModel(v6_ip="1.2.3.4")
         self.assertFailsValidation(giptm.full_clean, ['v6_ip',])
-        giptm = GenericIPAddressTestModel(v6_ip="2001:: 2")
-        self.assertFailsValidation(giptm.full_clean, ['v6_ip',])
         giptm = GenericIPAddressTestModel(v6_ip="1:2")
         self.assertFailsValidation(giptm.full_clean, ['v6_ip',])
 
     def test_v6_uniqueness_detection(self):
         # These two addresses are the same with different syntax
-        giptm = GenericIPAddressTestModel(generic_ip=" 2001::1:0:0:0:0:2")
+        giptm = GenericIPAddressTestModel(generic_ip="2001::1:0:0:0:0:2")
         giptm.save()
-        giptm = GenericIPAddressTestModel(generic_ip="2001:0:1:2 ")
+        giptm = GenericIPAddressTestModel(generic_ip="2001:0:1:2")
         self.assertFailsValidation(giptm.full_clean, ['generic_ip',])
 
     def test_v4_unpack_uniqueness_detection(self):