xref: /openbmc/linux/net/ipv6/Kconfig (revision 93dc544c)
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 INET6_XFRM_TUNNEL
100	select XFRM_IPCOMP
101	---help---
102	  Support for IP Payload Compression Protocol (IPComp) (RFC3173),
103	  typically needed for IPsec.
104
105	  If unsure, say Y.
106
107config IPV6_MIP6
108	tristate "IPv6: Mobility (EXPERIMENTAL)"
109	depends on EXPERIMENTAL
110	select XFRM
111	---help---
112	  Support for IPv6 Mobility described in RFC 3775.
113
114	  If unsure, say N.
115
116config INET6_XFRM_TUNNEL
117	tristate
118	select INET6_TUNNEL
119	default n
120
121config INET6_TUNNEL
122	tristate
123	default n
124
125config INET6_XFRM_MODE_TRANSPORT
126	tristate "IPv6: IPsec transport mode"
127	default IPV6
128	select XFRM
129	---help---
130	  Support for IPsec transport mode.
131
132	  If unsure, say Y.
133
134config INET6_XFRM_MODE_TUNNEL
135	tristate "IPv6: IPsec tunnel mode"
136	default IPV6
137	select XFRM
138	---help---
139	  Support for IPsec tunnel mode.
140
141	  If unsure, say Y.
142
143config INET6_XFRM_MODE_BEET
144	tristate "IPv6: IPsec BEET mode"
145	default IPV6
146	select XFRM
147	---help---
148	  Support for IPsec BEET mode.
149
150	  If unsure, say Y.
151
152config INET6_XFRM_MODE_ROUTEOPTIMIZATION
153	tristate "IPv6: MIPv6 route optimization mode (EXPERIMENTAL)"
154	depends on EXPERIMENTAL
155	select XFRM
156	---help---
157	  Support for MIPv6 route optimization mode.
158
159config IPV6_SIT
160	tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)"
161	select INET_TUNNEL
162	select IPV6_NDISC_NODETYPE
163	default y
164	---help---
165	  Tunneling means encapsulating data of one protocol type within
166	  another protocol and sending it over a channel that understands the
167	  encapsulating protocol. This driver implements encapsulation of IPv6
168	  into IPv4 packets. This is useful if you want to connect two IPv6
169	  networks over an IPv4-only path.
170
171	  Saying M here will produce a module called sit.ko. If unsure, say Y.
172
173config IPV6_NDISC_NODETYPE
174	bool
175
176config IPV6_TUNNEL
177	tristate "IPv6: IP-in-IPv6 tunnel (RFC2473)"
178	select INET6_TUNNEL
179	---help---
180	  Support for IPv6-in-IPv6 and IPv4-in-IPv6 tunnels described in
181	  RFC 2473.
182
183	  If unsure, say N.
184
185config IPV6_MULTIPLE_TABLES
186	bool "IPv6: Multiple Routing Tables"
187	depends on EXPERIMENTAL
188	select FIB_RULES
189	---help---
190	  Support multiple routing tables.
191
192config IPV6_SUBTREES
193	bool "IPv6: source address based routing"
194	depends on IPV6_MULTIPLE_TABLES
195	---help---
196	  Enable routing by source address or prefix.
197
198	  The destination address is still the primary routing key, so mixing
199	  normal and source prefix specific routes in the same routing table
200	  may sometimes lead to unintended routing behavior.  This can be
201	  avoided by defining different routing tables for the normal and
202	  source prefix specific routes.
203
204	  If unsure, say N.
205
206config IPV6_MROUTE
207	bool "IPv6: multicast routing (EXPERIMENTAL)"
208	depends on IPV6 && EXPERIMENTAL
209	---help---
210	  Experimental support for IPv6 multicast forwarding.
211	  If unsure, say N.
212
213config IPV6_PIMSM_V2
214	bool "IPv6: PIM-SM version 2 support (EXPERIMENTAL)"
215	depends on IPV6_MROUTE
216	---help---
217	  Support for IPv6 PIM multicast routing protocol PIM-SMv2.
218	  If unsure, say N.
219
220endif # IPV6
221