AT-AR220E Broadband Router Installation Guide
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Force DHCP Renew: The method by which the router determines how
often it must renew the lease on its IP address. In order for the router to
continue to use an IP address obtained from an ISP, it must occasionally
renew the address lease. This renewal is to prevent the ISP from
assigning the IP address to another device. Normally, the ISP will notify
the router of the time interval required for renewal of the IP lease. The
Force DHCP Renew option is used for situations where the ISP does not
provide the renewal time interval. By activating this option and entering
a time interval (in minutes), you control how often the router renews its
lease of the IP address with the ISP.
DNS Server (Auto or Manual): Specifies the method by which the
router obtains the IP address of the DNS server. If you select Auto, the
ISP assigns the IP addresses automatically. If you select Manual, the IP
addresses of the DNS servers are obtained from the DNS Server 1 and 2
fields in the table.
DNS Server 1 and 2: Specifies the IP addresses of up to two DNS servers,
provided by your IPS.
IP Fixed
The IP Fixed selection allows you to assign a fixed (static) IP address to
the DSL/Cable Modem connection on the router. You must obtain this
address from your ISP. Selecting this item displays the table in Figure 16.
Figure 16 WAN Config (IP Fixed)
