IPv6 Configurable Registry Settings
2/15/2013
The following subkeys apply to IPv6 only. You can set all other configurable parameters by using the IPv6.exe utility.
Note
The default registry values vary, depending on which Catalog items are included in OS design.
Per-interface settings are not configurable in the registry, but are configurable by using the IPv6.exe utility. These settings can be persisted in registry by the OS over restarts with the use of -p flag in IPv6.
The following table shows the registry values for the HKEY_LOCAL_MACHINE\Comm\Tcpip6\Parms registry key.
| Value : type | Description |
|---|---|
TcpTimedWaitDelay : REG_DWORD |
Default setting is 240. The valid range for this value is 30 to 300 milliseconds. This value determines the length of time that a connection stays in the TIME_WAIT state when it is closed. As long as a connection is in the TIME_WAIT state, the socket pair cannot be reused. |
The following table shows the registry values for the HKEY_LOCAL_MACHINE\Comm\Tcpip6\Parms\GlobalParams registry key.
| Value : type | Description |
|---|---|
RandomizeIdentifiers: REG_DWORD |
Default setting is 1. Specifies whether to use IPv6 address randomization. Set to zero to disable IPv6 address randomization. |
UseTemporaryAddresses : REG_DWORD |
Default setting is 1. Specifies whether temporary addresses should be used. |
The following table shows the host-specific values for the HKEY_LOCAL_MACHINE\Comm\Tcpip\Hosts\<Host Name> subkey.
| Value : type | Description |
|---|---|
ipaddr6 : REG_BINARY |
This value stores the IPv6 addresses associated with this host name. The length of this value is 20 bytes per address (16 bytes for address and 4 bytes for Scope ID). |
The following table shows the driver-specific syntax for the HKEY_LOCAL_MACHINE\Comm\PCI\<Adapter Name>\Parms\Tcpip subkey.
| Value : type | Description |
|---|---|
ipv6Address : REG_SZ |
Use the registration key to set IPv6 address for the interface: [HKEY_LOCAL_MACHINE\Comm\PCI\RTL81391\Parms\Tcpip] "ipv6Address"="2111::1/64" The prefix is required, and "ipv6Address"="2111::1/" will be parsed as "ipv6Address"="2111::1/0" The following syntax will not work: [HKEY_LOCAL_MACHINE\Comm\PCI\RTL81391\Parms\Tcpip]"ipv6Address"="2111::1" |
The following table shows the value for the HKEY_LOCAL_MACHINE\Comm\AFD subkey for the Windows Embedded Compact Protocol Manager (AFD).
| Value : type | Description |
|---|---|
LLMNRPort: REG_DWORD |
Default setting is 5353. The port to use for LLMNR queries over TCP and UDP. |
LLMNRv6Address : REG_SZ |
Default setting is FF02:0:0:0:0:0:1:3. The IPv6 address to use for Link-Local Multicast Name Resolution (LLMNR) queries. |
See Also
Reference
IPv6 Registry Settings
IPv4 and IPv6 Common Registry Settings
DHCPv6 Configurable Registry Settings
DHCPv6 Non-Configurable Registry Settings