TWCB Destination NAT IP addressing provides a web cache public facing address. This address is owned by the TWCB router. The client making an HTTP request uses the TWCB destination NAT address to reach the cache server from anywhere in the network. The public web cache addresses are defined in a standard access list that is assigned to a web cache configuration using the destination ip command. TWCB forwards the HTTP request to the appropriate cache server for processing.