[deliverable/linux.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 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
	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.

config IPV6_ROUTE_FWMARK
	bool "IPv6: use netfilter MARK value as routing key"
	depends on IPV6_MULTIPLE_TABLES && NETFILTER
	---help---
	  If you say Y here, you will be able to specify different routes for
	  packets with different mark values (see iptables(8), MARK target).
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
1da177e4 LT	60	config INET6_AH
	61	tristate "IPv6: AH transformation"
	62	depends on IPV6
	63	select XFRM
	64	select CRYPTO
	65	select CRYPTO_HMAC
	66	select CRYPTO_MD5
	67	select CRYPTO_SHA1
	68	---help---
	69	Support for IPsec AH.
	70
	71	If unsure, say Y.
	72
	73	config INET6_ESP
	74	tristate "IPv6: ESP transformation"
	75	depends on IPV6
	76	select XFRM
	77	select CRYPTO
	78	select CRYPTO_HMAC
	79	select CRYPTO_MD5
6b7326c8	80	select CRYPTO_CBC
1da177e4 LT	81	select CRYPTO_SHA1
	82	select CRYPTO_DES
	83	---help---
	84	Support for IPsec ESP.
	85
	86	If unsure, say Y.
	87
	88	config INET6_IPCOMP
	89	tristate "IPv6: IPComp transformation"
	90	depends on IPV6
	91	select XFRM
d2acc347	92	select INET6_XFRM_TUNNEL
1da177e4 LT	93	select CRYPTO
	94	select CRYPTO_DEFLATE
	95	---help---
	96	Support for IP Payload Compression Protocol (IPComp) (RFC3173),
	97	typically needed for IPsec.
	98
	99	If unsure, say Y.
	100
ee538268 MN	101	config IPV6_MIP6
	102	bool "IPv6: Mobility (EXPERIMENTAL)"
	103	depends on IPV6 && EXPERIMENTAL
	104	select XFRM
	105	---help---
	106	Support for IPv6 Mobility described in RFC 3775.
	107
	108	If unsure, say N.
	109
d2acc347 HX	110	config INET6_XFRM_TUNNEL
	111	tristate
	112	select INET6_TUNNEL
	113	default n
	114
1da177e4	115	config INET6_TUNNEL
d2acc347 HX	116	tristate
d2acc347 HX	117	default n
1da177e4	118
b59f45d0 HX	119	config INET6_XFRM_MODE_TRANSPORT
	120	tristate "IPv6: IPsec transport mode"
	121	depends on IPV6
	122	default IPV6
	123	select XFRM
	124	---help---
	125	Support for IPsec transport mode.
	126
	127	If unsure, say Y.
	128
	129	config INET6_XFRM_MODE_TUNNEL
	130	tristate "IPv6: IPsec tunnel mode"
	131	depends on IPV6
	132	default IPV6
	133	select XFRM
	134	---help---
	135	Support for IPsec tunnel mode.
	136
	137	If unsure, say Y.
	138
0a69452c DB	139	config INET6_XFRM_MODE_BEET
	140	tristate "IPv6: IPsec BEET mode"
	141	depends on IPV6
	142	default IPV6
	143	select XFRM
	144	---help---
	145	Support for IPsec BEET mode.
	146
	147	If unsure, say Y.
	148
1d71627d MN	149	config INET6_XFRM_MODE_ROUTEOPTIMIZATION
	150	tristate "IPv6: MIPv6 route optimization mode (EXPERIMENTAL)"
	151	depends on IPV6 && EXPERIMENTAL
	152	select XFRM
	153	---help---
	154	Support for MIPv6 route optimization mode.
	155
989e5b96 JR	156	config IPV6_SIT
	157	tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)"
	158	depends on IPV6
	159	default y
	160	---help---
	161	Tunneling means encapsulating data of one protocol type within
	162	another protocol and sending it over a channel that understands the
	163	encapsulating protocol. This driver implements encapsulation of IPv6
	164	into IPv4 packets. This is useful if you want to connect two IPv6
	165	networks over an IPv4-only path.
	166
	167	Saying M here will produce a module called sit.ko. If unsure, say Y.
	168
1da177e4 LT	169	config IPV6_TUNNEL
1da177e4 LT	170	tristate "IPv6: IPv6-in-IPv6 tunnel"
d2acc347	171	select INET6_TUNNEL
1da177e4	172	depends on IPV6
1da177e4 LT	173	---help---
	174	Support for IPv6-in-IPv6 tunnels described in RFC 2473.
	175
	176	If unsure, say N.
	177
264e91b6 VN	178	config IPV6_MULTIPLE_TABLES
	179	bool "IPv6: Multiple Routing Tables"
	180	depends on IPV6 && EXPERIMENTAL
	181	select FIB_RULES
	182	---help---
	183	Support multiple routing tables.
	184
4e96c2b4 YH	185	config IPV6_SUBTREES
4e96c2b4 YH	186	bool "IPv6: source address based routing"
264e91b6	187	depends on IPV6_MULTIPLE_TABLES
4e96c2b4 YH	188	---help---
	189	Enable routing by source address or prefix.
	190
	191	The destination address is still the primary routing key, so mixing
	192	normal and source prefix specific routes in the same routing table
	193	may sometimes lead to unintended routing behavior. This can be
	194	avoided by defining different routing tables for the normal and
	195	source prefix specific routes.
	196
	197	If unsure, say N.
	198
75bff8f0 YH	199	config IPV6_ROUTE_FWMARK
	200	bool "IPv6: use netfilter MARK value as routing key"
	201	depends on IPV6_MULTIPLE_TABLES && NETFILTER
	202	---help---
	203	If you say Y here, you will be able to specify different routes for
	204	packets with different mark values (see iptables(8), MARK target).
	205