With static NAT, a particular inside local address always maps to a particular inside global (public) address. Due to one-to-one mapping between addresses static NAT does not conserve public IP addresses. Although static NAT does not help with IP address conservation, it provides a degree of security by hiding the inside IP addresses from the outside world. Static NAT also allows an administrator to make an inside server available to clients on the Internet, because the inside server will always use the same public IP addresses.