DHCPv6 Non-Configurable Registry Settings
2/15/2013
This section describes registry values that are created and used internally by the Dynamic Host Configuration Protocol for IP version 6 (DHCPv6) client. DHCPv6 is a client/server protocol that automatically provides an Internet Protocol (IP) host with its IP address and other related information such as the subnet mask and default gateway. Windows Embedded Compact 2013 provides a DHCPv6 client that you can enable through a configurable registry setting (see DHCPv6 Configurable Registry Settings for more information about enabling or disabling the DHCPv6 client). The DHCPv6 client is enabled by default.
The following table shows the non-configurable DHCPv6 values for the HKEY_LOCAL_MACHINE\Comm\<Adapter Name>\Parms\Tcpip registry key. The DHCPv6 client creates and updates these values when it runs. You cannot change these values, but you can read them to get DHCPv6 configuration information.
Name | Type | Description | Default value |
---|---|---|---|
DhcpV6DNS |
REG_MULTI_SZ |
The IPv6 addresses of one or more DNS name servers configured by the DHCPv6 server. |
None |
DhcpV6Domain |
REG_SZ |
The latest domain name, configured by the DHCPv6 server, that is used by the network to which the device is connected. This value can be any domain name, such as example.microsoft.com. |
None |
DhcpV6DomainList |
REG_MULTI_SZ |
List of adapter-specific DNS domain names reported by the DHCPv6 server. |
None |
DhcpV6Iaid |
REG_DWORD |
Identity association identifier (IAID). Each identity association has an IAID, which is unique among all IAIDs for identify associations (IAs) belong to this DHCPv6 client. The DHCPv6 client generates a unique IAID for each network interface on your device. For more information about identity associations and IAIDs, see RFC 3315. |
None |
Dhcpv6IanaAddr |
REG_BINARY |
The network interface IPv6 address configured by the DHCPv6 server. The IPv6 type of this address is IANA (Identity Association for Non-temporary Addresses). |
None |
Dhcpv6IanaIaids |
REG_BINARY |
This value contains a list of IAIDs used by the DHCPv6 client. The structure of this data is opaque outside of the DHCPv6 client. |
None |
Dhcpv6IanaLeases |
REG_BINARY |
This value contains a list of IANA IPv6 addresses leased by the DHCPv6 client. The structure of this data is opaque outside of the DHCPv6 client. |
None |
Dhcpv6InterfaceOptions |
REG_BINARY |
This value contains a binary structure of interface options used by the DHCPv6 client. The structure and content of this data is opaque outside of the DHCPv6 client. |
None |
Dhcpv6IsUnicastEnabled |
REG_DWORD |
Boolean value that indicates whether unicast mode is enabled. In unicast mode, only one network interface uses the assigned IPv6 address.
|
None |
Dhcpv6LeaseObtainedTime |
REG_DWORD |
The time, in seconds, for which the lease on the IPv6 address for this adapter is valid. The time value is the number of seconds since 00:00:00, January 1, 1970, GMT. The valid range for this value is 1-0xFFFFFFFF (hexadecimal). |
None |
Dhcpv6MaxLeaseExpireTime |
REG_DWORD |
The time at which the lease on the IPv6 address for this adapter will expire. The time value is the number of seconds since 00:00:00, January 1, 1970, GMT. The valid range for this value is 1-0xFFFFFFFF (hexadecimal). |
None |
Dhcpv6ServerDUID |
REG_BINARY |
The DHCP Unique Identifier (DUID) of the DHCPv6 server. |
None |
Dhcpv6ServerPreference |
REG_DWORD |
The server preference option value reported in the DHCPv6 Server ADVERTISE message. The valid range for this value is 0 (zero) to 255. |
None |
Dhcpv6State |
REG_DWORD |
A bit mask specifying the state of the DHCPv6 client. This value is a bitwise OR of zero or more of the following flags.
Value Description
0x00000002 The DHCPv6 client has contacted the DHCPv6 server through this interface.
0x00000010 DHCPv6 is enabled on this interface.
0x00000020 The interface is in stateless mode.
0x00000180 Mask (two bits) for the media state of the interface. When the media state is 0, the interface is connected. When the media state is 1, the interface is reconnected. When the media state is 2, the interface is disconnected.
0x00000200 Power was resumed on this interface.
|
None |
Dhcpv6T1 |
REG_BINARY |
The renewal time for the prefix, in seconds. |
None |
Dhcpv6T2 |
REG_BINARY |
The rebind time of the prefix, in seconds |
None |
See Also
Reference
IPv6 Registry Settings
DHCPv6 Configurable Registry Settings
IPv4 and IPv6 Common Registry Settings