6. SETTINGS ON WEB INTERFACE
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6. Click the [Apply] button.
The message "Applied." appears.
7. Click the [Close] button to close the message.
6.8.6 How to set the DNS filter
A DNS filter helps you to prevent access to certain domains. Although a domain is
blocked with the DNS filter, IP-based communication is still available. To block specific
IP communication, use the IP filter (see section 6.8.7).
Note 1: To setup a DNS filter, [Group Type] must be set to other than [Bridge].
Note 2: To prevent unnecessary data communication, a new WAN group has all do-
mains automatically filtered at creation. Adjust the filter settings as required.
1. Referring to section 6.1, login as an Administrator.
2. Click [Admin], [Network Settings], [WAN], then [Groups].
3. Click the [Settings] button for the group whose DNS filter you want to setup.
4. Click [DNS Filter].
Prohibit Windows up-
date
Put a [9] in the box to prohibit Windows
®
Update.
The default setting is "checked".
Note 1: This item appears in gray when the [Prohibit DNS Re-
quest] setting is activated.
Note 2: Make sure that the setting of the DNS server of the PC
is the same IP address as the Communication Unit.
Note 3: Even if this item is set to valid, there is a possibility that
Windows
®
Update cannot be prohibited if the connection desti-
nation of Windows
®
Update is changed in the future.
Apply button Apply the settings.
Cancel button Restore the previous settings.
Item Description
Registered/available DNS filter countRegistered/available DNS filter countRegistered/available DNS filter count
Displays the DNS filter default
action.
Displays the DNS filter default
action.
Displays the DNS filter default
action.