Address Record - ZyXEL Communications ZyWALL 1050 User Manual

Table 230 System > DNS (continued)
LABEL
IP/FQDN
Add icon
Service Control
#
Zone
Address
Action
Add icon

45.5.3 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. For example, www.zyxel.com is a
fully qualified domain name, where "www" is the host, "zyxel" is the second-level domain,
and "com" is the top level domain. mail.myZyXEL.com.tw is also a FQDN, where "mail" is
the host, "myZyXEL" is the third-level domain, "com" is the second-level domain, and "tw" is
the top level domain.
The ZyWALL allows you to configure address records about the ZyWALL 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 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.
ZyWALL 1050 User's Guide
DESCRIPTION
This is the IP address or Fully-Qualified Domain Name (FQDN) of a mail server that
handles the mail for the domain specified in the field above.
Click the Add icon in the heading row to open a screen where you can add a new
MX record. Refer to Table 233 on page 648
Click the Edit icon to go to the screen where you can edit the record.
Click the Delete icon to remove an existing record. A window display asking you to
confirm that you want to delete the record. Note that subsequent records move up
by one when you take this action.
This specifies from which computers and zones you can send DNS queries to the
ZyWALL.
This the index number of the service control rule. The ordering of your rules is
important as rules are applied in sequence.
The entry with a hyphen (-) instead of a number is the ZyWALL's (non-configurable)
default policy. The ZyWALL applies this to traffic that does not match any other
configured rule. It is not an editable rule. To apply other behavior, configure a rule
that traffic will match so the ZyWALL will not have to use the default policy.
This is the zone on the ZyWALL the user is allowed or denied to access.
This is the object name of the IP address(es) with which the computer is allowed or
denied to send DNS queries.
This displays whether the ZyWALL accepts DNS queries from the computer with
the IP address specified above through the specified zone (Accept) or discards
them (Deny).
Click the Add icon in the heading row to open a screen where you can add a new
rule. Refer to Table 234 on page 648
Click the Edit icon to go to the screen where you can edit the rule.
Click the Add icon in an entry to add a rule below the current entry.
Click the Delete icon to remove an existing rule. A window display asking you to
confirm that you want to delete the rule. Note that subsequent rules move up by one
when you take this action.
Click the Move to N icon to display a field to type a number for where you want to
put that rule and press [ENTER] to move the rule to the number that you typed.
Chapter 45 System
for information on the fields.
for information on the fields.
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