Intel AMT: IPV6 vs IPV4

Documentation: Intel ® AMT Implementation and Reference Guide
Download the Intel AMT SDK
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Intel AMT has support for both IPv6 and IPv4, however there are things you need to know about which configurations are applicable to their usages.

DDNS Settings:

If your network supports Dynamic DNS (DDNS), Intel AMT will update the DNS server with its IP addresses (both IPv4 and IPv6). Intel AMT will get the DNS server IP either from DHCP or from a static setting.The Intel AMT DDNS feature only supports forward look-up non-secure DNS zones. The DDNS mechanism works when Intel AMT has a dedicated FQDN (both IPV4 and IPv6 addresses) and also when it shares an FQDN with the host (IPv4 addressing only).

Note: Intel AMT does not support a configuration with shared FQDN + DDNS enabled + IPv6.

Starting with Release 6.0 the Intel AMT FQDN can be either shared (same as the host FQDN) or dedicated. The Intel AMT FQDN consists of its host name and its domain name. When the FQDN is shared, both must be the same as the host. In a dedicated FQDN, at least one of the two fields must be different from the host.

The HostOSFQDN is read only – It represents the OS Host FQDN.
The DDNS settings are part of the AMT_GeneralSettings object. (Get DDNS Settings and Set/Get General Network Settings.)

Here is a table that shows the allowable configurations:

Intel AMT and the host never share the same IPv6 address, whether it is a DHCPv6, Router Advertisement or manually configured IP address.
Intel AMT does not support a static IP address on a wireless interface.

How to Configure the IP Addresses:

The Intel AMT IP address can be either an IPv4 address or, starting with Release 6.0, an IPv6 address. Here are the basic configurations:

Intel AMT and the host have a shared dynamic IP address (IPv4 only). The IP address is issued by a DHCP server on request by the host. Intel AMT either detects the DHCP address requests and responses, or starting with AMT Release 7.0, requests IP address updates via the Local Manageability Server (LMS) (from Release 9.0) or the User Notification Service (UNS) (releases prior to 9.0).
Intel AMT and the host have different static IP addresses (wired interface only). This is valid but requires two IP addresses per platform. Set the two IP addresses directly.
Starting with Release 7.0, Intel AMT and the host can share a static IP address (wired interface only). There are two ways to do this:
- Configure the Intel AMT IP address directly using the AMT_EthernetPortSettings and set the SharedIP property to true.
- With Release 7.0, Intel AMT, in conjunction with the LMS (Release 9.0) or UNS (prior to Release 9.0), can detect the host IP address and synchronize the Intel AMT address to the host address (IPv4 only).

Note:

Using static IP addresses limits access to certain Intel AMT features that depend on the presence of a DHCP server.
A configuration where Intel AMT gets its IP address dynamically, while the host has a static IP, is invalid.
Earlier releases supported a configuration where the host has a dynamic IP and Intel AMT has a static IP. Starting with Release 7.0, this is an invalid configuration.

In Summary: