8 [Administration] Tab Page152 [Setup] Item List Setting up DDNS SessionIn DDNS Session, you can enable the Dynamic DNS service if the DNS server supports the dynamic DNS.y When using the security in DDNS, if the difference between the time set in the server, in which Windows DNSrecord is to be updated, and the one set in the equipment exceeds the time stated in the account policy of theserver, the DNS update using the security will fail. Check the time set for the DNS server and match it with the oneset for the equipment.When using DDNS and the IP address is assigned using DHCP, enable "006 DNS Servers" and "015 DNS DomainName" in the DHCP Server's Scope Options or Server Options.y When using DDNS, make sure the "Dynamic updates" option is set to "Nonsecure and secure" (for WindowsServer 2003/Windows Server 2008) for the Forward Lookup Zones and Reversed Lookup Zones.If the setting of Windows Server 2003/Windows Server 2008 is other than "Nonsecure and secure" for this DDNSfunction, you need to set the correct primary login name and primary password to update the DNS server byDDNS.If you do not want to use DDNS such as managed by a primary and secondary login name and password, youneed to add the equipment's host name manually in the Forward and Reversed Lookup Zone.Forward Lookup Zones(Windows 2008 Server)Reversed Lookup Zones(Windows 2008 Server)