Before a DHCP server can update DNS, the DHCP server needs to have an FQDN-to-IP address mapping. When a DHCP IPv4 client requests an IP address, it typically includes its host name in option 12 of the DHCPDISCOVER packet, and an IPv6 client includes its hostname in the Request packet. You can configure the NIOS appliance to include a domain name in option 15 of the IPv4 DHCPOFFER packet or in the IPv6 Reply packet. You specify this domain name in the IPv4 DHCP Options -> Basic and IPv6 DHCP Options -> Basic tabs of the Grid DHCP Properties editor, Member DHCP Configuration editor, and the Network editor. For IPv4 clients you can also specify a domain name in the DHCP Range and Fixed
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Then, you can enable the DHCP server to send DDNS updates for IPv4 and IPv6 clients, as described in Enabling DDNS for IPv4 and IPv6 DHCP Clients. After you enable the DHCP server to send DDNS updates, you can do the following:
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