Static address translations are one-to-one bindings between the inside and outside IP addresses. A static address binding is not deleted until the command that defines the binding is negated. When configuring NAT for static address translation, you assign a local IP address and a global IP address. When configuring NAPT for static address translation, you assign a local IP address and one of its associated L4 ports and a global IP address and one of its associated L4 ports. You also specify whether the IP protocol is TCP or UDP.