TYPO3 Extension access_restriction

protect access to pages or content elements via frontend groups that are only added when specific access restrictions are matching

IP Restriction

• allows single IP validation e.g. 192.168.0.1
• allows range IP validation e.g. 192.168.0.1-192.168.0.255
• allows subnet IP range validation e.g. 192.168.0.1/24

Setup Restriction in Backend