Configuring DNS
When using the machine in an environment with Domain Name System (DNS), configure the DNS server information and DHCP option settings.
In an environment without DNS, you can configure multicast DNS (mDNS) to use the DNS function. mDNS is used by Bonjour and other software.
In an environment without DNS, you can configure multicast DNS (mDNS) to use the DNS function. mDNS is used by Bonjour and other software.
* When the machine is connected to two different networks at the same time and using DNS to send and receive specific system data via the sub line, you must also configure DNS on the sub line in addition to configuring this setting. Setting the DNS of the Sub Line
This section describes how to configure the settings using the control panel.
You can also configure the settings using Remote UI from a computer. Managing the Machine from a Computer (Remote UI)
Administrator or NetworkAdmin privileges are required.
You can also configure the settings using Remote UI from a computer. Managing the Machine from a Computer (Remote UI)
Administrator or NetworkAdmin privileges are required.
Required Preparations
When configuring DNS for IPv6, configure the settings to use an IPv6 address. Setting IPv6 Addresses
1
Log in to the machine as an administrator. Logging In to the Machine
2
On the control panel, press [
Settings/Registration] in the [Home] screen or other screen. [Home] Screen
Settings/Registration] in the [Home] screen or other screen. [Home] ScreenThe [Settings/Registration] screen is displayed.
3
Press [Preferences] 
[Network] [TCP/IP Settings].
[Network] [TCP/IP Settings].4
Configure the DHCP options. 
If you are not configuring the DHCP option settings, proceed to Step 5.
1
Press [IPv4 Settings] or [IPv6 Settings] [DHCP Option Settings].
[DHCP Option Settings].The [DHCP Option Settings] screen is displayed.
2
Set the items to enable to [On].
[Acquire Host Name] (IPv4 only)
Obtains a host name (Option 12) from the DHCP server.
[DNS Dynamic Update] (IPv4 only)
The DHCP server automatically updates the information (Option 81) corresponding to the host name in place of the machine.
[Acquire DNS Server Address]
Obtains a DNS server address (Option 6 for IPv4, Option 23 for IPv6) from the DHCP server.
[Acquire Domain Name]
Obtains a domain name (Option 15 for IPv4, Option 24 for IPv6) from the DHCP server.
[Acquire WINS Server Address] (IPv4 only)
Obtains an WINS server address (Option 44) from the DHCP server.
[Acquire SMTP Server Address] (IPv4 only)
Obtains an SMTP server address (Option 69) from the DHCP server.
[Acquire POP Server Address] (IPv4 only)
Obtains a POP3 server address (Option 70) from the DHCP server.
3
Press [OK].
4
Press [TCP/IP Settings] or [Up].
Press [DNS Settings].
6
Set the DNS server information.
For details about the setting information, contact your provider or network administrator. You can also refer to the computer settings. Checking the Network Connection Information of the Computer
If you are not configuring the DNS server information, proceed to Step 7.
1
Press [DNS Server Address Settings].
The [DNS Server Address Settings] screen is displayed.
2
Enter the IP address of the DNS server, and press [OK].
In [Primary DNS Server], enter the IP address of the DNS server.
When using a secondary DNS server, enter the IP address of that server in [Secondary DNS Server].
* When not using a secondary DNS server, set IPv4 to "0.0.0.0" and leave IPv6 blank.
For IPv4
Press [Primary DNS Server] and [Secondary DNS Server] to select them, and enter the DNS server information.
For IPv6
Press [Primary DNS Server] and [Secondary DNS Server], and enter the DNS server information.
* The following addresses cannot be entered:
Multicast address (address starting with "ff")
Address consisting of all zeros
Link-local address
3
Press [DNS Host Name/Domain Name Settings].
The [DNS Host Name/Domain Name Settings] screen is displayed.
4
Enter the host name and domain name of the machine, and press [OK].
[Use Same Host Name/Domain Name as IPv4] (IPv6 only)
To use the same host name and domain name as IPv4 for IPv6 when using both IPv4 and IPv6, set this to [On].
To set the IPv6 host name and domain name individually, set this to [Off], and enter [Host Name] and [Domain Name].
To set the IPv6 host name and domain name individually, set this to [Off], and enter [Host Name] and [Domain Name].
[Host Name]
Enter the host name to register in the DNS server using single-byte alphanumeric characters.
[Domain Name]
Enter the name of the domain to which the machine belongs using single-byte alphanumeric characters.
Input example:
example.com
example.com
* When the IPv6 address setting is configured to use DHCPv6, the domain name acquired from the DHCPv6 server is used for the IPv6 domain name.
5
Press [DNS Dynamic Update Settings].
The [DNS Dynamic Update Settings] screen is displayed.
6
Specify whether to use DNS Dynamic Update, and press [OK].
To automatically update the DNS settings when the corresponding information of the host name and IP address is changed in a DHCP environment, for example, set [DNS Dynamic Update] to [On].
For IPv6, depending on the type of address to register to the DNS server, set [Register Stateless Address], [Register Manual Address], or [Register Stateful Address] to [On].
For IPv6, depending on the type of address to register to the DNS server, set [Register Stateless Address], [Register Manual Address], or [Register Stateful Address] to [On].
Configure the mDNS settings.
If you are not configuring the mDNS settings, proceed to Step 8.
1
Press [mDNS Settings].
The [mDNS Settings] screen is displayed.
2
Set whether to use mDNS.
For IPv4
To use mDNS, set [Use IPv4 mDNS] to [On], and enter the mDNS name.
For IPv6
To use mDNS, set the [Use IPv6 mDNS] to [On], and select whether to use the same mDNS name as IPv4.
To use the same mDNS name as IPv4 for IPv6 when using both IPv4 and IPv6, set [Use Same mDNS Name as IPv4] to [On].
To set the mDNS name of IPv6 individually, set [Use Same mDNS Name as IPv4] to [Off], and enter the mDNS name.
3
Press [OK].
Press [ Settings/Registration] [Yes].
Settings/Registration] [Yes].The settings are applied.