xref: /openbmc/linux/net/ipv6/Kconfig (revision 22246614)
1#
2# IPv6 configuration
3#
4
5#   IPv6 as module will cause a CRASH if you try to unload it
6menuconfig IPV6
7	tristate "The IPv6 protocol"
8	default m
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
22if IPV6
23
24config IPV6_PRIVACY
25	bool "IPv6: Privacy Extensions support"
26	---help---
27	  Privacy Extensions for Stateless Address Autoconfiguration in IPv6
28	  support.  With this option, additional periodically-alter
29	  pseudo-random global-scope unicast address(es) will assigned to
30	  your interface(s).
31
32	  We use our standard pseudo random algorithm to generate randomized
33	  interface identifier, instead of one described in RFC 3041.
34
35	  By default, kernel do not generate temporary addresses.
36	  To use temporary addresses, do
37
38	        echo 2 >/proc/sys/net/ipv6/conf/all/use_tempaddr
39
40	  See <file:Documentation/networking/ip-sysctl.txt> for details.
41
42config IPV6_ROUTER_PREF
43	bool "IPv6: Router Preference (RFC 4191) support"
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
52config 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
60config IPV6_OPTIMISTIC_DAD
61	bool "IPv6: Enable RFC 4429 Optimistic DAD (EXPERIMENTAL)"
62	depends on 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
70config INET6_AH
71	tristate "IPv6: AH transformation"
72	select XFRM
73	select CRYPTO
74	select CRYPTO_HMAC
75	select CRYPTO_MD5
76	select CRYPTO_SHA1
77	---help---
78	  Support for IPsec AH.
79
80	  If unsure, say Y.
81
82config INET6_ESP
83	tristate "IPv6: ESP transformation"
84	select XFRM
85	select CRYPTO
86	select CRYPTO_AUTHENC
87	select CRYPTO_HMAC
88	select CRYPTO_MD5
89	select CRYPTO_CBC
90	select CRYPTO_SHA1
91	select CRYPTO_DES
92	---help---
93	  Support for IPsec ESP.
94
95	  If unsure, say Y.
96
97config INET6_IPCOMP
98	tristate "IPv6: IPComp transformation"
99	select XFRM
100	select INET6_XFRM_TUNNEL
101	select CRYPTO
102	select CRYPTO_DEFLATE
103	---help---
104	  Support for IP Payload Compression Protocol (IPComp) (RFC3173),
105	  typically needed for IPsec.
106
107	  If unsure, say Y.
108
109config IPV6_MIP6
110	tristate "IPv6: Mobility (EXPERIMENTAL)"
111	depends on EXPERIMENTAL
112	select XFRM
113	---help---
114	  Support for IPv6 Mobility described in RFC 3775.
115
116	  If unsure, say N.
117
118config INET6_XFRM_TUNNEL
119	tristate
120	select INET6_TUNNEL
121	default n
122
123config INET6_TUNNEL
124	tristate
125	default n
126
127config INET6_XFRM_MODE_TRANSPORT
128	tristate "IPv6: IPsec transport mode"
129	default IPV6
130	select XFRM
131	---help---
132	  Support for IPsec transport mode.
133
134	  If unsure, say Y.
135
136config INET6_XFRM_MODE_TUNNEL
137	tristate "IPv6: IPsec tunnel mode"
138	default IPV6
139	select XFRM
140	---help---
141	  Support for IPsec tunnel mode.
142
143	  If unsure, say Y.
144
145config INET6_XFRM_MODE_BEET
146	tristate "IPv6: IPsec BEET mode"
147	default IPV6
148	select XFRM
149	---help---
150	  Support for IPsec BEET mode.
151
152	  If unsure, say Y.
153
154config INET6_XFRM_MODE_ROUTEOPTIMIZATION
155	tristate "IPv6: MIPv6 route optimization mode (EXPERIMENTAL)"
156	depends on EXPERIMENTAL
157	select XFRM
158	---help---
159	  Support for MIPv6 route optimization mode.
160
161config IPV6_SIT
162	tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)"
163	select INET_TUNNEL
164	select IPV6_NDISC_NODETYPE
165	default y
166	---help---
167	  Tunneling means encapsulating data of one protocol type within
168	  another protocol and sending it over a channel that understands the
169	  encapsulating protocol. This driver implements encapsulation of IPv6
170	  into IPv4 packets. This is useful if you want to connect two IPv6
171	  networks over an IPv4-only path.
172
173	  Saying M here will produce a module called sit.ko. If unsure, say Y.
174
175config IPV6_NDISC_NODETYPE
176	bool
177
178config IPV6_TUNNEL
179	tristate "IPv6: IP-in-IPv6 tunnel (RFC2473)"
180	select INET6_TUNNEL
181	---help---
182	  Support for IPv6-in-IPv6 and IPv4-in-IPv6 tunnels described in
183	  RFC 2473.
184
185	  If unsure, say N.
186
187config IPV6_MULTIPLE_TABLES
188	bool "IPv6: Multiple Routing Tables"
189	depends on EXPERIMENTAL
190	select FIB_RULES
191	---help---
192	  Support multiple routing tables.
193
194config IPV6_SUBTREES
195	bool "IPv6: source address based routing"
196	depends on IPV6_MULTIPLE_TABLES
197	---help---
198	  Enable routing by source address or prefix.
199
200	  The destination address is still the primary routing key, so mixing
201	  normal and source prefix specific routes in the same routing table
202	  may sometimes lead to unintended routing behavior.  This can be
203	  avoided by defining different routing tables for the normal and
204	  source prefix specific routes.
205
206	  If unsure, say N.
207
208config IPV6_MROUTE
209	bool "IPv6: multicast routing (EXPERIMENTAL)"
210	depends on IPV6 && EXPERIMENTAL
211	---help---
212	  Experimental support for IPv6 multicast forwarding.
213	  If unsure, say N.
214
215config IPV6_PIMSM_V2
216	bool "IPv6: PIM-SM version 2 support (EXPERIMENTAL)"
217	depends on IPV6_MROUTE
218	---help---
219	  Support for IPv6 PIM multicast routing protocol PIM-SMv2.
220	  If unsure, say N.
221
222endif # IPV6
223