This extension works together with fe_ipauth and allows you to automatically log in a user depending on the IP or IP range from which he is visiting your site. In the same was as fe_ipauth this extension is developed to be performant and also work on systems with lot of users and different IPs for them. All IP entries are cached in an table. The extensions is based upon the "cc_iplogin_fe" but most of its code and the caching mechanism is completly new. IPv6 addresses are also supported.