ZyXEL Communications NBG410W3G - Manual (Page 248)

Chapter 14 DNS
NBG410W3G Series User’s Guide
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14.4 Address Record
An address record contains the mapping of a fully qualified domain name (FQDN) to an IP
address. An FQDN consists of a host and domain name and includes the top-level domain. For
example, www.zyxel.com.tw is a fully qualified domain name, where “www” is the host,
“zyxel” is the second-level domain, and “com.tw” is the top level domain.
mail.myZyXEL.com.tw is also a FQDN, where "mail" is the host, "myZyXEL" is the second-
level domain, and "com.tw" is the top level domain.
The ZyXEL Device allows you to configure address records about the ZyXEL Device itself or
another device. This way you can keep a record of DNS names and addresses that people on
your network may use frequently. If the ZyXEL Device receives a DNS query for an FQDN
for which the ZyXEL Device has an address record, the ZyXEL Device can send the IP
address in a DNS response without having to query a DNS name server.
14.4.1 DNS Wildcard
Enabling the wildcard feature for your host causes *.yourhost.com to be aliased to the same IP
address as yourhost.com. This feature is useful if you want to be able to use, for example,
www.yourhost.com and still reach your hostname.
14.5 Name Server Record
A name server record contains a DNS server’s IP address. The ZyXEL Device can query the
DNS server to resolve domain names for features such as DDNS and the time server. A
domain zone may also be included. A domain zone is a fully qualified domain name without
the host. For example, zyxel.com.tw is the domain zone for the www.zyxel.com.tw fully
qualified domain name.
14.5.1 Private DNS Server
In cases where you want to use domain names to access Intranet servers on a remote private
network that has a DNS server, you must identify that DNS server. You cannot use DNS
servers on the LAN or from the ISP since these DNS servers cannot resolve domain names to
private IP addresses on the remote private network.
14.6 System Screen
Click ADVANCED > DNS to display the following screen. Use this screen to configure your
ZyXEL Device’s DNS address and name server records.