2-2 Firmware User GuideWAN Ethernet Configuration screenThe WAN Ethernet Configuration screen appears as follows:• Address Translation Enabled allows you to specify whether or not the router performs Network AddressTranslation (NAT) on the Ethernet WAN port. NAT is enabled by default.• Obtain WAN address via DHCP allows you to toggle WAN DHCP Off and On. DHCP is On by default. so thatif you do not change the setting, the Router will acquire its WAN IP address automatically. By default, therouter acts as a DHCP client on the Ethernet WAN port and and attempts to acquire an address from aDHCP server.• The Local WAN IP Address field allows you to manually configure an IP address for use on the EthernetWAN port. This field only becomes visible if you toggle Obtain WAN address via DHCP to Off.• The Local WAN IP Mask field becomes visible if you specify a Local WAN IP Address. This allows you tomanually configure an IP subnet mask for use on the Ethernet WAN port. This item is visible only if youhave configured a non-zero Ethernet IP Address; otherwise, the router obtains a subnet mask via DHCP.• The NAT Map List and NAT Server List options are set to the defaults, Easy-PAT List and Easy-Servers.These provide standard NAT mappings. For more advanced NAT configurations, see “Multiple NetworkAddress Translation” on page 4-1.• NAT Options allows you to specify IP Passthrough, allowing a single PC on the LAN to have the router’spublic address assigned to it. See “IP Passthrough” on page 4-28.• If you set Stateful Inspection Enabled to Yes, you can enable a security feature for computers on your LANwhen NAT is disabled. See “Stateful Inspection” on page 3-3.• The Filter Set pop-up allows you to associate an IP filter set with the Ethernet WAN port. See “About Filtersand Filter Sets” on page 10-21.• Remove Filter Set allows you to remove a previously associated filter set.WAN Ethernet ConfigurationAddress Translation Enabled: YesObtain WAN address via DHCP: OnNAT Map List... Easy-PAT ListNAT Server List... Easy-ServersNAT Options...Stateful Inspection Enabled: NoFilter Set...Remove Filter SetWAN Ethernet Speed Setting... Auto-NegotiationWan Ethernet MAC Address: 00:0f:cc:0b:9d:ceDHCP Client Mode: Standards-BasedRIP Options...Set up the basic IP attributes of your Ethernet Module in this screen.
