1 # SPDX-License-Identifier: GPL-2.0-only
2 #
3 # IPv6 configuration
4 #
5
6 # IPv6 as module will cause a CRASH if you t
7 menuconfig IPV6
8 tristate "The IPv6 protocol"
9 default y
10 select CRYPTO_LIB_SHA1
11 help
12 Support for IP version 6 (IPv6).
13
14 For general information about IPv6,
15 <https://en.wikipedia.org/wiki/IPv6>
16 For specific information about IPv6
17 Documentation/networking/ipv6.rst an
18 <https://www.tldp.org/HOWTO/Linux+IP
19
20 To compile this protocol support as
21 module will be called ipv6.
22
23 if IPV6
24
25 config IPV6_ROUTER_PREF
26 bool "IPv6: Router Preference (RFC 419
27 help
28 Router Preference is an optional ext
29 Advertisement message which improves
30 to pick an appropriate router, espec
31 are placed in a multi-homed network.
32
33 If unsure, say N.
34
35 config IPV6_ROUTE_INFO
36 bool "IPv6: Route Information (RFC 419
37 depends on IPV6_ROUTER_PREF
38 help
39 Support of Route Information.
40
41 If unsure, say N.
42
43 config IPV6_OPTIMISTIC_DAD
44 bool "IPv6: Enable RFC 4429 Optimistic
45 help
46 Support for optimistic Duplicate Add
47 autoconfigured addresses to be used
48
49 If unsure, say N.
50
51 config INET6_AH
52 tristate "IPv6: AH transformation"
53 select XFRM_AH
54 help
55 Support for IPsec AH (Authentication
56
57 AH can be used with various authenti
58 enabling AH support itself, this opt
59 implementations of the algorithms th
60 implemented. If you need any other
61 them in the crypto API. You should
62 implementations of any needed algori
63
64 If unsure, say Y.
65
66 config INET6_ESP
67 tristate "IPv6: ESP transformation"
68 select XFRM_ESP
69 help
70 Support for IPsec ESP (Encapsulating
71
72 ESP can be used with various encrypt
73 Besides enabling ESP support itself,
74 implementations of the algorithms th
75 implemented. If you need any other
76 them in the crypto API. You should
77 implementations of any needed algori
78
79 If unsure, say Y.
80
81 config INET6_ESP_OFFLOAD
82 tristate "IPv6: ESP transformation off
83 depends on INET6_ESP
84 select XFRM_OFFLOAD
85 default n
86 help
87 Support for ESP transformation offlo
88 only if this system really does IPse
89 with high throughput. A typical desk
90 need it, even if it does IPsec.
91
92 If unsure, say N.
93
94 config INET6_ESPINTCP
95 bool "IPv6: ESP in TCP encapsulation (
96 depends on XFRM && INET6_ESP
97 select STREAM_PARSER
98 select NET_SOCK_MSG
99 select XFRM_ESPINTCP
100 help
101 Support for RFC 8229 encapsulation o
102 TCP/IPv6 sockets.
103
104 If unsure, say N.
105
106 config INET6_IPCOMP
107 tristate "IPv6: IPComp transformation"
108 select INET6_XFRM_TUNNEL
109 select XFRM_IPCOMP
110 help
111 Support for IP Payload Compression P
112 typically needed for IPsec.
113
114 If unsure, say Y.
115
116 config IPV6_MIP6
117 tristate "IPv6: Mobility"
118 select XFRM
119 help
120 Support for IPv6 Mobility described
121
122 If unsure, say N.
123
124 config IPV6_ILA
125 tristate "IPv6: Identifier Locator Add
126 depends on NETFILTER
127 select DST_CACHE
128 select LWTUNNEL
129 help
130 Support for IPv6 Identifier Locator
131
132 ILA is a mechanism to do network vir
133 encapsulation. The basic concept of
134 IPv6 address into a 64 bit locator a
135 identifier is the identity of an ent
136 ("who") and the locator expresses th
137 entity ("where").
138
139 ILA can be configured using the "enc
140 "ip -6 route" command. ILA is descri
141 https://tools.ietf.org/html/draft-he
142
143 If unsure, say N.
144
145 config INET6_XFRM_TUNNEL
146 tristate
147 select INET6_TUNNEL
148 default n
149
150 config INET6_TUNNEL
151 tristate
152 default n
153
154 config IPV6_VTI
155 tristate "Virtual (secure) IPv6: tunne
156 select IPV6_TUNNEL
157 select NET_IP_TUNNEL
158 select XFRM
159 help
160 Tunneling means encapsulating data of
161 another protocol and sending it over a
162 encapsulating protocol. This can be us
163 the notion of a secure tunnel for IPSE
164 on top.
165
166 config IPV6_SIT
167 tristate "IPv6: IPv6-in-IPv4 tunnel (S
168 select INET_TUNNEL
169 select NET_IP_TUNNEL
170 select IPV6_NDISC_NODETYPE
171 default y
172 help
173 Tunneling means encapsulating data o
174 another protocol and sending it over
175 encapsulating protocol. This driver
176 into IPv4 packets. This is useful if
177 networks over an IPv4-only path.
178
179 Saying M here will produce a module
180
181 config IPV6_SIT_6RD
182 bool "IPv6: IPv6 Rapid Deployment (6RD
183 depends on IPV6_SIT
184 default n
185 help
186 IPv6 Rapid Deployment (6rd; draft-ie
187 mechanisms of 6to4 (RFC3056) to enab
188 deploy IPv6 unicast service to IPv4
189 customer premise equipment. Like 6t
190 IPv4 encapsulation in order to trans
191 infrastructure. Unlike 6to4, a 6rd
192 prefix of its own in place of the fi
193
194 With this option enabled, the SIT dr
195 providing additional ioctl API to co
196 stead of static 2002::/16 for 6to4.
197
198 If unsure, say N.
199
200 config IPV6_NDISC_NODETYPE
201 bool
202
203 config IPV6_TUNNEL
204 tristate "IPv6: IP-in-IPv6 tunnel (RFC
205 select INET6_TUNNEL
206 select DST_CACHE
207 select GRO_CELLS
208 help
209 Support for IPv6-in-IPv6 and IPv4-in
210 RFC 2473.
211
212 If unsure, say N.
213
214 config IPV6_GRE
215 tristate "IPv6: GRE tunnel"
216 select IPV6_TUNNEL
217 select NET_IP_TUNNEL
218 depends on NET_IPGRE_DEMUX
219 help
220 Tunneling means encapsulating data o
221 another protocol and sending it over
222 encapsulating protocol. This particu
223 GRE (Generic Routing Encapsulation)
224 encapsulating of IPv4 or IPv6 over e
225 This driver is useful if the other e
226 likes GRE much better than the other
227 tunneling" above). In addition, GRE
228 through the tunnel.
229
230 Saying M here will produce a module
231
232 config IPV6_FOU
233 tristate
234 default NET_FOU && IPV6
235
236 config IPV6_FOU_TUNNEL
237 tristate
238 default NET_FOU_IP_TUNNELS && IPV6_FOU
239 select IPV6_TUNNEL
240
241 config IPV6_MULTIPLE_TABLES
242 bool "IPv6: Multiple Routing Tables"
243 select FIB_RULES
244 help
245 Support multiple routing tables.
246
247 config IPV6_SUBTREES
248 bool "IPv6: source address based routi
249 depends on IPV6_MULTIPLE_TABLES
250 help
251 Enable routing by source address or
252
253 The destination address is still the
254 normal and source prefix specific ro
255 may sometimes lead to unintended rou
256 avoided by defining different routin
257 source prefix specific routes.
258
259 If unsure, say N.
260
261 config IPV6_MROUTE
262 bool "IPv6: multicast routing"
263 depends on IPV6
264 select IP_MROUTE_COMMON
265 help
266 Support for IPv6 multicast forwardin
267 If unsure, say N.
268
269 config IPV6_MROUTE_MULTIPLE_TABLES
270 bool "IPv6: multicast policy routing"
271 depends on IPV6_MROUTE
272 select FIB_RULES
273 help
274 Normally, a multicast router runs a
275 what to do with a multicast packet b
276 destination addresses. If you say Y
277 will also be able to take interfaces
278 account and run multiple instances o
279 simultaneously, each one handling a
280
281 If unsure, say N.
282
283 config IPV6_PIMSM_V2
284 bool "IPv6: PIM-SM version 2 support"
285 depends on IPV6_MROUTE
286 help
287 Support for IPv6 PIM multicast routi
288 If unsure, say N.
289
290 config IPV6_SEG6_LWTUNNEL
291 bool "IPv6: Segment Routing Header enc
292 depends on IPV6
293 select LWTUNNEL
294 select DST_CACHE
295 select IPV6_MULTIPLE_TABLES
296 help
297 Support for encapsulation of packets
298 header and a Segment Routing Header
299 tunnels mechanism. Also enable suppo
300 processing of SRv6 packets based on
301
302 If unsure, say N.
303
304 config IPV6_SEG6_HMAC
305 bool "IPv6: Segment Routing HMAC suppo
306 depends on IPV6
307 select CRYPTO
308 select CRYPTO_HMAC
309 select CRYPTO_SHA1
310 select CRYPTO_SHA256
311 help
312 Support for HMAC signature generatio
313 of SR-enabled packets.
314
315 If unsure, say N.
316
317 config IPV6_SEG6_BPF
318 def_bool y
319 depends on IPV6_SEG6_LWTUNNEL
320 depends on IPV6 = y
321
322 config IPV6_RPL_LWTUNNEL
323 bool "IPv6: RPL Source Routing Header
324 depends on IPV6
325 select LWTUNNEL
326 select DST_CACHE
327 help
328 Support for RFC6554 RPL Source Routi
329 tunnels mechanism.
330
331 If unsure, say N.
332
333 config IPV6_IOAM6_LWTUNNEL
334 bool "IPv6: IOAM Pre-allocated Trace i
335 depends on IPV6
336 select LWTUNNEL
337 select DST_CACHE
338 help
339 Support for the insertion of IOAM Pr
340 Header using the lightweight tunnels
341
342 If unsure, say N.
343
344 endif # IPV6
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.