D-Link DFL-80 User Manual page 20

Ping: Select this to allow the external network to ping the IP Address of
the Firewall. This will allow people from the Internet to be able to ping
the Firewall. If set to enable, the DFL-80 will respond to echo request
packets from the external network.
WebUI: Select this to allow the DFL-80 WEBUI to be accessed from
the WAN network. This will allow the WebUI to be configured from a
user on the Internet. Keep in mind that the DFL-80 always requires a
username and password to enter the WebUI.
For Dynamic IP Address (Cable Modem User): This option is for users who
are automatically assigned an IP address by their ISP, such as cable modem
users. The following fields apply:
IP Address: The dynamic IP address obtained by the Firewall from the
ISP will be displayed here. This is the IP address of the WAN port of the
DFL-80.
MAC Address: This is the MAC Address of the DFL-80.
Hostname: This will be the name assign to the DFL-80. Some cable
modem ISP assign a specific hostname in order to connect to their
network. Please enter the hostname here. If not required by your ISP,
you do not have to enter a hostname.
Ping: Select this to allow the external network to ping the IP Address of
the Firewall. This will allow people from the Internet to be able to ping
the Firewall. If set to enable, the DFL-80 will respond to echo request
packets from the external network.
WebUI: Select this to allow the DFL-80 WEBUI to be accessed from
the WAN network. This will allow the WebUI to be configured from a
user on the Internet. Keep in mind that the DFL-80 always requires a
username and password to enter the WebUI.
For Static IP Address: This option is for users who are assigned a static IP
Address from their ISP. Your ISP will provide all the information needed for this
section such as IP Address, Netmask, Gateway, and DNS. Use this option
also if you have more than one public IP Address assigned to you.
IP Address: Enter the static IP address assigned to you by your ISP.
This will be the public IP address of the WAN port of the DFL-80.
Netmask: This will be the Netmask of the WAN network. (i.e.
255.255.255.0)
Default Gateway: This will be the Gateway IP address.
Domain Name Server (DNS): This is the IP Address of the DNS server.
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