[net-next-2.6.git] / net / ipv6 / Kconfig

#
# IPv6 configuration
#

#   IPv6 as module will cause a CRASH if you try to unload it
config 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.

config IPV6_PRIVACY
	bool "IPv6: Privacy Extensions support"
	depends on IPV6
	---help---
	  Privacy Extensions for Stateless Address Autoconfiguration in IPv6
	  support.  With this option, additional periodically-alter 
	  pseudo-random global-scope unicast address(es) will assigned to
	  your interface(s).
	
	  We use our standard pseudo random algorithm to generate randomized
	  interface identifier, instead of one described in RFC 3041.

	  By default, kernel do 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"
	depends on IPV6
	---help---
	  Router Preference is an optional extension to the Router
	  Advertisement message to improve the ability of hosts
	  to pick more appropriate router, especially when the hosts
	  is 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 IPV6 && 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"
	depends on IPV6
	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"
	depends on IPV6
	select XFRM
	select CRYPTO
	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"
	depends on IPV6
	select XFRM
	select INET6_XFRM_TUNNEL
	select CRYPTO
	select CRYPTO_DEFLATE
	---help---
	  Support for IP Payload Compression Protocol (IPComp) (RFC3173),
	  typically needed for IPsec.

	  If unsure, say Y.

config IPV6_MIP6
	bool "IPv6: Mobility (EXPERIMENTAL)"
	depends on IPV6 && 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"
	depends on IPV6
	default IPV6
	select XFRM
	---help---
	  Support for IPsec transport mode.

	  If unsure, say Y.

config INET6_XFRM_MODE_TUNNEL
	tristate "IPv6: IPsec tunnel mode"
	depends on IPV6
	default IPV6
	select XFRM
	---help---
	  Support for IPsec tunnel mode.

	  If unsure, say Y.

config INET6_XFRM_MODE_BEET
	tristate "IPv6: IPsec BEET mode"
	depends on IPV6
	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 IPV6 && EXPERIMENTAL
	select XFRM
	---help---
	  Support for MIPv6 route optimization mode.

config IPV6_SIT
	tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)"
	depends on IPV6
	select INET_TUNNEL
	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.ko. If unsure, say Y.

config IPV6_TUNNEL
	tristate "IPv6: IPv6-in-IPv6 tunnel"
	select INET6_TUNNEL
	depends on IPV6
	---help---
	  Support for IPv6-in-IPv6 tunnels described in RFC 2473.

	  If unsure, say N.

config IPV6_MULTIPLE_TABLES
	bool "IPv6: Multiple Routing Tables"
	depends on IPV6 && 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.
Commit	Line	Data
1da177e4 LT	1	#
1da177e4 LT	2	# IPv6 configuration
6a2e9b73 SR	3	#
	4
	5	# IPv6 as module will cause a CRASH if you try to unload it
	6	config IPV6
	7	tristate "The IPv6 protocol"
	8	default m
6a2e9b73 SR	9	---help---
	10	This is complemental support for the IP version 6.
	11	You will still be able to do traditional IPv4 networking as well.
	12
	13	For general information about IPv6, see
	14	<http://playground.sun.com/pub/ipng/html/ipng-main.html>.
	15	For Linux IPv6 development information, see <http://www.linux-ipv6.org>.
	16	For specific information about IPv6 under Linux, read the HOWTO at
	17	<http://www.bieringer.de/linux/IPv6/>.
	18
	19	To compile this protocol support as a module, choose M here: the
	20	module will be called ipv6.
	21
1da177e4	22	config IPV6_PRIVACY
955189ef	23	bool "IPv6: Privacy Extensions support"
1da177e4 LT	24	depends on IPV6
	25	---help---
	26	Privacy Extensions for Stateless Address Autoconfiguration in IPv6
	27	support. With this option, additional periodically-alter
	28	pseudo-random global-scope unicast address(es) will assigned to
	29	your interface(s).
	30
955189ef YH	31	We use our standard pseudo random algorithm to generate randomized
	32	interface identifier, instead of one described in RFC 3041.
	33
1da177e4 LT	34	By default, kernel do not generate temporary addresses.
	35	To use temporary addresses, do
	36
	37	echo 2 >/proc/sys/net/ipv6/conf/all/use_tempaddr
	38
	39	See <file:Documentation/networking/ip-sysctl.txt> for details.
	40
ebacaaa0 YH	41	config IPV6_ROUTER_PREF
	42	bool "IPv6: Router Preference (RFC 4191) support"
	43	depends on IPV6
	44	---help---
	45	Router Preference is an optional extension to the Router
	46	Advertisement message to improve the ability of hosts
	47	to pick more appropriate router, especially when the hosts
	48	is placed in a multi-homed network.
	49
	50	If unsure, say N.
	51
70ceb4f5 YH	52	config IPV6_ROUTE_INFO
	53	bool "IPv6: Route Information (RFC 4191) support (EXPERIMENTAL)"
	54	depends on IPV6_ROUTER_PREF && EXPERIMENTAL
	55	---help---
	56	This is experimental support of Route Information.
	57
	58	If unsure, say N.
	59
95c385b4 NH	60	config IPV6_OPTIMISTIC_DAD
	61	bool "IPv6: Enable RFC 4429 Optimistic DAD (EXPERIMENTAL)"
	62	depends on IPV6 && EXPERIMENTAL
	63	---help---
	64	This is experimental support for optimistic Duplicate
	65	Address Detection. It allows for autoconfigured addresses
	66	to be used more quickly.
	67
	68	If unsure, say N.
	69
1da177e4 LT	70	config INET6_AH
	71	tristate "IPv6: AH transformation"
	72	depends on IPV6
	73	select XFRM
	74	select CRYPTO
	75	select CRYPTO_HMAC
	76	select CRYPTO_MD5
	77	select CRYPTO_SHA1
	78	---help---
	79	Support for IPsec AH.
	80
	81	If unsure, say Y.
	82
	83	config INET6_ESP
	84	tristate "IPv6: ESP transformation"
	85	depends on IPV6
	86	select XFRM
	87	select CRYPTO
	88	select CRYPTO_HMAC
	89	select CRYPTO_MD5
6b7326c8	90	select CRYPTO_CBC
1da177e4 LT	91	select CRYPTO_SHA1
	92	select CRYPTO_DES
	93	---help---
	94	Support for IPsec ESP.
	95
	96	If unsure, say Y.
	97
	98	config INET6_IPCOMP
	99	tristate "IPv6: IPComp transformation"
	100	depends on IPV6
	101	select XFRM
d2acc347	102	select INET6_XFRM_TUNNEL
1da177e4 LT	103	select CRYPTO
	104	select CRYPTO_DEFLATE
	105	---help---
	106	Support for IP Payload Compression Protocol (IPComp) (RFC3173),
	107	typically needed for IPsec.
	108
	109	If unsure, say Y.
	110
ee538268 MN	111	config IPV6_MIP6
	112	bool "IPv6: Mobility (EXPERIMENTAL)"
	113	depends on IPV6 && EXPERIMENTAL
	114	select XFRM
	115	---help---
	116	Support for IPv6 Mobility described in RFC 3775.
	117
	118	If unsure, say N.
	119
d2acc347 HX	120	config INET6_XFRM_TUNNEL
	121	tristate
	122	select INET6_TUNNEL
	123	default n
	124
1da177e4	125	config INET6_TUNNEL
d2acc347 HX	126	tristate
d2acc347 HX	127	default n
1da177e4	128
b59f45d0 HX	129	config INET6_XFRM_MODE_TRANSPORT
	130	tristate "IPv6: IPsec transport mode"
	131	depends on IPV6
	132	default IPV6
	133	select XFRM
	134	---help---
	135	Support for IPsec transport mode.
	136
	137	If unsure, say Y.
	138
	139	config INET6_XFRM_MODE_TUNNEL
	140	tristate "IPv6: IPsec tunnel mode"
	141	depends on IPV6
	142	default IPV6
	143	select XFRM
	144	---help---
	145	Support for IPsec tunnel mode.
	146
	147	If unsure, say Y.
	148
0a69452c DB	149	config INET6_XFRM_MODE_BEET
	150	tristate "IPv6: IPsec BEET mode"
	151	depends on IPV6
	152	default IPV6
	153	select XFRM
	154	---help---
	155	Support for IPsec BEET mode.
	156
	157	If unsure, say Y.
	158
1d71627d MN	159	config INET6_XFRM_MODE_ROUTEOPTIMIZATION
	160	tristate "IPv6: MIPv6 route optimization mode (EXPERIMENTAL)"
	161	depends on IPV6 && EXPERIMENTAL
	162	select XFRM
	163	---help---
	164	Support for MIPv6 route optimization mode.
	165
989e5b96 JR	166	config IPV6_SIT
	167	tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)"
	168	depends on IPV6
c73cb5a2	169	select INET_TUNNEL
989e5b96 JR	170	default y
	171	---help---
	172	Tunneling means encapsulating data of one protocol type within
	173	another protocol and sending it over a channel that understands the
	174	encapsulating protocol. This driver implements encapsulation of IPv6
	175	into IPv4 packets. This is useful if you want to connect two IPv6
	176	networks over an IPv4-only path.
	177
	178	Saying M here will produce a module called sit.ko. If unsure, say Y.
	179
1da177e4 LT	180	config IPV6_TUNNEL
1da177e4 LT	181	tristate "IPv6: IPv6-in-IPv6 tunnel"
d2acc347	182	select INET6_TUNNEL
1da177e4	183	depends on IPV6
1da177e4 LT	184	---help---
	185	Support for IPv6-in-IPv6 tunnels described in RFC 2473.
	186
	187	If unsure, say N.
	188
264e91b6 VN	189	config IPV6_MULTIPLE_TABLES
	190	bool "IPv6: Multiple Routing Tables"
	191	depends on IPV6 && EXPERIMENTAL
	192	select FIB_RULES
	193	---help---
	194	Support multiple routing tables.
	195
4e96c2b4 YH	196	config IPV6_SUBTREES
4e96c2b4 YH	197	bool "IPv6: source address based routing"
264e91b6	198	depends on IPV6_MULTIPLE_TABLES
4e96c2b4 YH	199	---help---
	200	Enable routing by source address or prefix.
	201
	202	The destination address is still the primary routing key, so mixing
	203	normal and source prefix specific routes in the same routing table
	204	may sometimes lead to unintended routing behavior. This can be
	205	avoided by defining different routing tables for the normal and
	206	source prefix specific routes.
	207
	208	If unsure, say N.
	209