| # | 
 | # IPv6 configuration | 
 | # | 
 |  | 
 | #   IPv6 as module will cause a CRASH if you try to unload it | 
 | menuconfig IPV6 | 
 | 	tristate "The IPv6 protocol" | 
 | 	default m | 
 | 	---help--- | 
 | 	  This is complemental support for the IP version 6. | 
 | 	  You will still be able to do traditional IPv4 networking as well. | 
 |  | 
 | 	  For general information about IPv6, see | 
 | 	  <http://playground.sun.com/pub/ipng/html/ipng-main.html>. | 
 | 	  For Linux IPv6 development information, see <http://www.linux-ipv6.org>. | 
 | 	  For specific information about IPv6 under Linux, read the HOWTO at | 
 | 	  <http://www.bieringer.de/linux/IPv6/>. | 
 |  | 
 | 	  To compile this protocol support as a module, choose M here: the  | 
 | 	  module will be called ipv6. | 
 |  | 
 | if IPV6 | 
 |  | 
 | config IPV6_PRIVACY | 
 | 	bool "IPv6: Privacy Extensions (RFC 3041) support" | 
 | 	---help--- | 
 | 	  Privacy Extensions for Stateless Address Autoconfiguration in IPv6 | 
 | 	  support.  With this option, additional periodically-altered | 
 | 	  pseudo-random global-scope unicast address(es) will be assigned to | 
 | 	  your interface(s). | 
 | 	 | 
 | 	  We use our standard pseudo-random algorithm to generate the | 
 |           randomized interface identifier, instead of one described in RFC 3041. | 
 |  | 
 | 	  By default the kernel does not generate temporary addresses. | 
 | 	  To use temporary addresses, do | 
 | 	 | 
 | 	        echo 2 >/proc/sys/net/ipv6/conf/all/use_tempaddr  | 
 |  | 
 | 	  See <file:Documentation/networking/ip-sysctl.txt> for details. | 
 |  | 
 | config IPV6_ROUTER_PREF | 
 | 	bool "IPv6: Router Preference (RFC 4191) support" | 
 | 	---help--- | 
 | 	  Router Preference is an optional extension to the Router | 
 | 	  Advertisement message which improves the ability of hosts | 
 | 	  to pick an appropriate router, especially when the hosts | 
 | 	  are placed in a multi-homed network. | 
 |  | 
 | 	  If unsure, say N. | 
 |  | 
 | config IPV6_ROUTE_INFO | 
 | 	bool "IPv6: Route Information (RFC 4191) support (EXPERIMENTAL)" | 
 | 	depends on IPV6_ROUTER_PREF && EXPERIMENTAL | 
 | 	---help--- | 
 | 	  This is experimental support of Route Information. | 
 |  | 
 | 	  If unsure, say N. | 
 |  | 
 | config IPV6_OPTIMISTIC_DAD | 
 | 	bool "IPv6: Enable RFC 4429 Optimistic DAD (EXPERIMENTAL)" | 
 | 	depends on EXPERIMENTAL | 
 | 	---help--- | 
 | 	  This is experimental support for optimistic Duplicate | 
 | 	  Address Detection.  It allows for autoconfigured addresses | 
 | 	  to be used more quickly. | 
 |  | 
 | 	  If unsure, say N. | 
 |  | 
 | config INET6_AH | 
 | 	tristate "IPv6: AH transformation" | 
 | 	select XFRM | 
 | 	select CRYPTO | 
 | 	select CRYPTO_HMAC | 
 | 	select CRYPTO_MD5 | 
 | 	select CRYPTO_SHA1 | 
 | 	---help--- | 
 | 	  Support for IPsec AH. | 
 |  | 
 | 	  If unsure, say Y. | 
 |  | 
 | config INET6_ESP | 
 | 	tristate "IPv6: ESP transformation" | 
 | 	select XFRM | 
 | 	select CRYPTO | 
 | 	select CRYPTO_AUTHENC | 
 | 	select CRYPTO_HMAC | 
 | 	select CRYPTO_MD5 | 
 | 	select CRYPTO_CBC | 
 | 	select CRYPTO_SHA1 | 
 | 	select CRYPTO_DES | 
 | 	---help--- | 
 | 	  Support for IPsec ESP. | 
 |  | 
 | 	  If unsure, say Y. | 
 |  | 
 | config INET6_IPCOMP | 
 | 	tristate "IPv6: IPComp transformation" | 
 | 	select INET6_XFRM_TUNNEL | 
 | 	select XFRM_IPCOMP | 
 | 	---help--- | 
 | 	  Support for IP Payload Compression Protocol (IPComp) (RFC3173), | 
 | 	  typically needed for IPsec. | 
 |  | 
 | 	  If unsure, say Y. | 
 |  | 
 | config IPV6_MIP6 | 
 | 	tristate "IPv6: Mobility (EXPERIMENTAL)" | 
 | 	depends on EXPERIMENTAL | 
 | 	select XFRM | 
 | 	---help--- | 
 | 	  Support for IPv6 Mobility described in RFC 3775. | 
 |  | 
 | 	  If unsure, say N. | 
 |  | 
 | config INET6_XFRM_TUNNEL | 
 | 	tristate | 
 | 	select INET6_TUNNEL | 
 | 	default n | 
 |  | 
 | config INET6_TUNNEL | 
 | 	tristate | 
 | 	default n | 
 |  | 
 | config INET6_XFRM_MODE_TRANSPORT | 
 | 	tristate "IPv6: IPsec transport mode" | 
 | 	default IPV6 | 
 | 	select XFRM | 
 | 	---help--- | 
 | 	  Support for IPsec transport mode. | 
 |  | 
 | 	  If unsure, say Y. | 
 |  | 
 | config INET6_XFRM_MODE_TUNNEL | 
 | 	tristate "IPv6: IPsec tunnel mode" | 
 | 	default IPV6 | 
 | 	select XFRM | 
 | 	---help--- | 
 | 	  Support for IPsec tunnel mode. | 
 |  | 
 | 	  If unsure, say Y. | 
 |  | 
 | config INET6_XFRM_MODE_BEET | 
 | 	tristate "IPv6: IPsec BEET mode" | 
 | 	default IPV6 | 
 | 	select XFRM | 
 | 	---help--- | 
 | 	  Support for IPsec BEET mode. | 
 |  | 
 | 	  If unsure, say Y. | 
 |  | 
 | config INET6_XFRM_MODE_ROUTEOPTIMIZATION | 
 | 	tristate "IPv6: MIPv6 route optimization mode (EXPERIMENTAL)" | 
 | 	depends on EXPERIMENTAL | 
 | 	select XFRM | 
 | 	---help--- | 
 | 	  Support for MIPv6 route optimization mode. | 
 |  | 
 | config IPV6_SIT | 
 | 	tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)" | 
 | 	select INET_TUNNEL | 
 | 	select IPV6_NDISC_NODETYPE | 
 | 	default y | 
 | 	---help--- | 
 | 	  Tunneling means encapsulating data of one protocol type within | 
 | 	  another protocol and sending it over a channel that understands the | 
 | 	  encapsulating protocol. This driver implements encapsulation of IPv6 | 
 | 	  into IPv4 packets. This is useful if you want to connect two IPv6 | 
 | 	  networks over an IPv4-only path. | 
 |  | 
 | 	  Saying M here will produce a module called sit. If unsure, say Y. | 
 |  | 
 | config IPV6_SIT_6RD | 
 | 	bool "IPv6: IPv6 Rapid Deployment (6RD) (EXPERIMENTAL)" | 
 | 	depends on IPV6_SIT && EXPERIMENTAL | 
 | 	default n | 
 | 	---help--- | 
 | 	  IPv6 Rapid Deployment (6rd; draft-ietf-softwire-ipv6-6rd) builds upon | 
 | 	  mechanisms of 6to4 (RFC3056) to enable a service provider to rapidly | 
 | 	  deploy IPv6 unicast service to IPv4 sites to which it provides | 
 | 	  customer premise equipment.  Like 6to4, it utilizes stateless IPv6 in | 
 | 	  IPv4 encapsulation in order to transit IPv4-only network | 
 | 	  infrastructure.  Unlike 6to4, a 6rd service provider uses an IPv6 | 
 | 	  prefix of its own in place of the fixed 6to4 prefix. | 
 |  | 
 | 	  With this option enabled, the SIT driver offers 6rd functionality by | 
 | 	  providing additional ioctl API to configure the IPv6 Prefix for in | 
 | 	  stead of static 2002::/16 for 6to4. | 
 |  | 
 | 	  If unsure, say N. | 
 |  | 
 | config IPV6_NDISC_NODETYPE | 
 | 	bool | 
 |  | 
 | config IPV6_TUNNEL | 
 | 	tristate "IPv6: IP-in-IPv6 tunnel (RFC2473)" | 
 | 	select INET6_TUNNEL | 
 | 	---help--- | 
 | 	  Support for IPv6-in-IPv6 and IPv4-in-IPv6 tunnels described in | 
 | 	  RFC 2473. | 
 |  | 
 | 	  If unsure, say N. | 
 |  | 
 | config IPV6_MULTIPLE_TABLES | 
 | 	bool "IPv6: Multiple Routing Tables" | 
 | 	depends on EXPERIMENTAL | 
 | 	select FIB_RULES | 
 | 	---help--- | 
 | 	  Support multiple routing tables. | 
 |  | 
 | config IPV6_SUBTREES | 
 | 	bool "IPv6: source address based routing" | 
 | 	depends on IPV6_MULTIPLE_TABLES | 
 | 	---help--- | 
 | 	  Enable routing by source address or prefix. | 
 |  | 
 | 	  The destination address is still the primary routing key, so mixing | 
 | 	  normal and source prefix specific routes in the same routing table | 
 | 	  may sometimes lead to unintended routing behavior.  This can be | 
 | 	  avoided by defining different routing tables for the normal and | 
 | 	  source prefix specific routes. | 
 |  | 
 | 	  If unsure, say N. | 
 |  | 
 | config IPV6_MROUTE | 
 | 	bool "IPv6: multicast routing (EXPERIMENTAL)" | 
 | 	depends on IPV6 && EXPERIMENTAL | 
 | 	---help--- | 
 | 	  Experimental support for IPv6 multicast forwarding. | 
 | 	  If unsure, say N. | 
 |  | 
 | config IPV6_MROUTE_MULTIPLE_TABLES | 
 | 	bool "IPv6: multicast policy routing" | 
 | 	depends on IPV6_MROUTE | 
 | 	select FIB_RULES | 
 | 	help | 
 | 	  Normally, a multicast router runs a userspace daemon and decides | 
 | 	  what to do with a multicast packet based on the source and | 
 | 	  destination addresses. If you say Y here, the multicast router | 
 | 	  will also be able to take interfaces and packet marks into | 
 | 	  account and run multiple instances of userspace daemons | 
 | 	  simultaneously, each one handling a single table. | 
 |  | 
 | 	  If unsure, say N. | 
 |  | 
 | config IPV6_PIMSM_V2 | 
 | 	bool "IPv6: PIM-SM version 2 support (EXPERIMENTAL)" | 
 | 	depends on IPV6_MROUTE | 
 | 	---help--- | 
 | 	  Support for IPv6 PIM multicast routing protocol PIM-SMv2. | 
 | 	  If unsure, say N. | 
 |  | 
 | endif # IPV6 |