Operation Manual – NATH3C S9500 Series Routing Switches Chapter 1 NAT Configuration1-6z The AnyServer feature can only translate packets of the specified protocol (TCP,UDP or ICMP) and is mainly used for internal hosts to provide services to thepublic network.z A static NAT entry can translate TCP, UDP, and ICMP packets at the same timeand is mainly used for an internal host to access the public network.Comparision between dynamic NAT and static NAT:z A dynamic NAT entry also defines a mapping between a private address and apublic address, but it does not allow an external host to actively access the internalhost, unless the internal host has already accessed the public network. DynamicNAT entries are not fixed.z A static NAT entry allows an external host to actively access the internal host,without affecting the internal host’s access to the public network. Static NATentries are fixed.VI. Special Protocols Supported by NATThe special protocols supported by NAT include Internal Control Message Protocol(ICMP), Domain Name System (DNS), Internet Locator Service (ILS), and File TransferProtocol (FTP).1.2 Configuring NATComplete the following tasks to configure NAT:Task RemarksConfiguring an Address Pool RequiredConfiguring NAT RequiredConfiguring Internal Servers RequiredConfiguring Static NAT RequiredConfiguring NAT Blacklist Attributes RequiredConfiguring the Aging Time of NAT Connections OptionalConfiguring the NAT Session Table Auto-Reset Function OptionalConfiguring NAT Security Logging Optional1.2.1 Configuring an Address PoolFollow these steps to configure an address pool:
