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ADSL2+ Gateway with VoIP
• Local DHCP Server. A Dynamic Host Configuration Protocol (DHCP) server automatically assigns an IP
address to each computer on your network for you. Unless you already have one, it is highly
recommended that you leave the Gateway enabled as a DHCP server. You can also use the Gateway in
DHCP Relay mode.
• DHCP Relay Server. If you enable the DHCP Relay mode for the Local DHCP Server setting, enter the IP
address for the DHCP server in the fields provided.
• Advanced. This button displays a window that lets you reserve addresses in the DHCP range for
particular machines.
• Autodetect LAN DHCP Server. Enable this function if you already have a DHCP server on your LAN and
you wish to continue using it.
• Starting IP Address. Enter a value for the DHCP server to start with when issuing IP addresses. This
value must be 192.168.1. 2 or greater, because the default IP address for the Gateway is 192.168.1.1.
• Maximum Number of DHCP Users. Enter the maximum number of users/clients that can obtain an IP
address. The number will vary depending on the starting IP address entered.
• Client Lease Time. The Client Lease Time is the amount of time a computer will be allowed connection to
the Gateway with its current dynamic IP address. Enter the amount of time, in minutes, that the computer
will be "leased" this dynamic IP address.
• Static DNS 1-3. The Domain Name System (DNS) is how the Internet translates domain or website names
into Internet addresses or URLs. Your ISP will provide you with at least one DNS Server IP Address. You
can enter up to three DNS Server IP Addresses here. The Gateway will use these for quicker access to
functioning DNS servers.
• WINS. The Windows Internet Naming Service (WINS) converts NetBIOS names to IP addresses. If you use
a WINS server, enter that server's IP address here. Otherwise, leave this field blank.
• Time Setting.
• Time Zone. Select the appropriate time zone for the Gateway's location.
• Time Interval. Select the time interval for clock synchronization. The default value is 3600 seconds (1
hour).
• Automatically adjust clock for daylight saving changes checkbox. Select this if your location
observes daylight saving time.
Chapter 6: Configuring the ADSL2+ Gateway
The Setup - Basic Setup Tab
Figure 6-11: Advanced DHCP
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