|  |  | 
|  | Options for the ipv6 module are supplied as parameters at load time. | 
|  |  | 
|  | Module options may be given as command line arguments to the insmod | 
|  | or modprobe command, but are usually specified in either the | 
|  | /etc/modules.conf or /etc/modprobe.conf configuration file, or in a | 
|  | distro-specific configuration file. | 
|  |  | 
|  | The available ipv6 module parameters are listed below.  If a parameter | 
|  | is not specified the default value is used. | 
|  |  | 
|  | The parameters are as follows: | 
|  |  | 
|  | disable | 
|  |  | 
|  | Specifies whether to load the IPv6 module, but disable all | 
|  | its functionality.  This might be used when another module | 
|  | has a dependency on the IPv6 module being loaded, but no | 
|  | IPv6 addresses or operations are desired. | 
|  |  | 
|  | The possible values and their effects are: | 
|  |  | 
|  | 0 | 
|  | IPv6 is enabled. | 
|  |  | 
|  | This is the default value. | 
|  |  | 
|  | 1 | 
|  | IPv6 is disabled. | 
|  |  | 
|  | No IPv6 addresses will be added to interfaces, and | 
|  | it will not be possible to open an IPv6 socket. | 
|  |  | 
|  | A reboot is required to enable IPv6. | 
|  |  | 
|  | autoconf | 
|  |  | 
|  | Specifies whether to enable IPv6 address autoconfiguration | 
|  | on all interfaces.  This might be used when one does not wish | 
|  | for addresses to be automatically generated from prefixes | 
|  | received in Router Advertisements. | 
|  |  | 
|  | The possible values and their effects are: | 
|  |  | 
|  | 0 | 
|  | IPv6 address autoconfiguration is disabled on all interfaces. | 
|  |  | 
|  | Only the IPv6 loopback address (::1) and link-local addresses | 
|  | will be added to interfaces. | 
|  |  | 
|  | 1 | 
|  | IPv6 address autoconfiguration is enabled on all interfaces. | 
|  |  | 
|  | This is the default value. | 
|  |  | 
|  | disable_ipv6 | 
|  |  | 
|  | Specifies whether to disable IPv6 on all interfaces. | 
|  | This might be used when no IPv6 addresses are desired. | 
|  |  | 
|  | The possible values and their effects are: | 
|  |  | 
|  | 0 | 
|  | IPv6 is enabled on all interfaces. | 
|  |  | 
|  | This is the default value. | 
|  |  | 
|  | 1 | 
|  | IPv6 is disabled on all interfaces. | 
|  |  | 
|  | No IPv6 addresses will be added to interfaces. | 
|  |  |