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Chapter 20 DNS
ZyWALL 2 Plus User’s Guide
347
An address record contains the mapping of a fully qualified domain name (FQDN) to an IP
address. Configure address records about the ZyWALL itself or another device to keep a
record of DNS names and addresses that people on your network may use frequently. If the
ZyWALL receives a DNS query for an FQDN for which the ZyWALL has an address record,
the ZyWALL can send the IP address in a DNS response without having to query a DNS name
server. See Section 20.4 on page 344 for more on address records.
Figure 221 ADVANCED > DNS > Add (Address Record)
The following table describes the labels in this screen.
20.6.2 Inserting a Name Server Record
Click Insert in the System screen to open this screen. Use this screen to insert a name server
record. A name server record contains a DNS server’s IP address. The ZyWALL can query the
DNS server to resolve domain names for features like VPN, 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.
Table 113 ADVANCED > DNS > Add (Address Record)
LABEL DESCRIPTION
FQDN Type a fully qualified domain name (FQDN) of a server. An FQDN starts with a
host name and continues all the way up to the top-level domain name. 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.
IP Address If this entry is for the WAN port on the ZyWALL, select WAN Interface.
For entries that are not for the WAN port, select Custom and enter the IP address
of the host in dotted decimal notation.
Enable Wildcard Select the check box to enable DNS wildcard.
Apply Click Apply to save your changes back to the ZyWALL.
Cancel Click Cancel to exit this screen without saving.