Restrict Content Pro – IP Restriction GPL Overview:

IP Restriction for Restrict Content Pro allows you to restrict your site’s content at the IP level. The add-on comes with two distinct features:

IP whitelisting

Allow certain IP addresses to bypass restrictions on a post or page. This can be configured on a global, subscription level, and per-post/page basis.

IP blacklisting

This feature allows you to block certain IP addresses from registering on your site through Restrict Content Pro.