diff --git a/typo3/sysext/core/Configuration/DefaultConfiguration.php b/typo3/sysext/core/Configuration/DefaultConfiguration.php
index 12534444358841ea28d48edf72d1999aadfc00b2..14de28826933281538b56146cf31d95cc664432c 100644
--- a/typo3/sysext/core/Configuration/DefaultConfiguration.php
+++ b/typo3/sysext/core/Configuration/DefaultConfiguration.php
@@ -207,6 +207,7 @@ return [
         'belogErrorReporting' => E_ALL & ~(E_STRICT | E_NOTICE),
         'locallangXMLOverride' => [], // For extension/overriding of the arrays in 'locallang' files in frontend  and backend. See 'Inside TYPO3' for more information.
         'generateApacheHtaccess' => 1,
+        'ipAnonymization' => 1,
         'Objects' => [],
         'fal' => [
             'registeredDrivers' => [
diff --git a/typo3/sysext/core/Configuration/DefaultConfigurationDescription.yaml b/typo3/sysext/core/Configuration/DefaultConfigurationDescription.yaml
index a0b2005dc16c8b2d359582da66838ba36c832a82..0511cea9c830035993772904caa6037efae370aa 100644
--- a/typo3/sysext/core/Configuration/DefaultConfigurationDescription.yaml
+++ b/typo3/sysext/core/Configuration/DefaultConfigurationDescription.yaml
@@ -201,6 +201,13 @@ SYS:
         generateApacheHtaccess:
             type: bool
             description: 'TYPO3 can create <em>.htaccess</em> files which are used by Apache Webserver. They are useful for access protection or performance improvements. Currently <em>.htaccess</em> files in the following directories are created, if they do not exist: <ul><li>typo3temp/compressor/</li></ul>You want to disable this feature, if you are not running Apache or want to use own rulesets.'
+        ipAnonymization:
+            type: int
+            allowedValues:
+              '0': 'Disabled - Do not modify IP addresses at all'
+              '1': 'Mask the last byte for IPv4 addresses / Mask the Interface ID for IPv6 addresses (default)'
+              '2': 'Mask the last two bytes for IPv4 addresses / Mask the Interface ID and SLA ID for IPv6 addresses'
+            description: 'Configures if and how IP addresses stored via TYPO3''s API should be anonymized ("masked") with a zero-numbered replacement.'
         systemMaintainers:
             type: array
             description: 'A list of backend user IDs allowed to access the Install Tool'