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Section 4 - Troubleshooting
D-Link DSL-2740B User Manual
43
DNS SETUP
The Router can be configured to relay DNS settings from your ISP or another available service to workstations on your LAN. When using DNS relay,
the Router will accept DNS requests from hosts on the LAN and forward them to the ISP’s, or alternative DNS servers. DNS relay can use auto
discovery or the DNS IP address can be manually entered by the user. Alternatively, you may also disable the DNS relay and configure hosts on
your LAN to use DNS servers directly. Most users, who are using the Router for DHCP service on the LAN and are using DNS servers on the ISP’s
network, should check Obtain DNS server address automatically box.
The Router supports DDNS (Dynamic Domain Name Service). The Dynamic DNS service allows a dynamic public IP address to be associated with
a static host name in any of the many domains, allowing access to a specified host from various locations on the Internet. This is enabled to allow
remote access to a host by clicking on a hyperlinked URL in the form hostname.dyndns.org, Many ISPs assign public IP addresses using DHCP,
and this can make it difficult to locate a specific host on the LAN using standard DNS. If for example you are running a public web server or VPN
server on your LAN, this ensures that the host can be located from the Internet if the public IP address changes. DDNS requires that an account be
setup with one of the supported DDNS service providers (DyndDNS.org or TZO).
To access the DNS SETUP setting window, click on the DNS Setup button in the ADVANCED directory.