net/ipv6/Kconfig

   1 #
   2 # IPv6 configuration
   3 #
   4
   5 #   IPv6 as module will cause a CRASH if you try to unload it
   6 menuconfig 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
  22 if IPV6
  23
  24 config IPV6_PRIVACY
  25         bool "IPv6: Privacy Extensions (RFC 3041) support"
  26         ---help---
  27           Privacy Extensions for Stateless Address Autoconfiguration in IPv6
  28           support.  With this option, additional periodically-altered
  29           pseudo-random global-scope unicast address(es) will be assigned to
  30           your interface(s).
  31
  32           We use our standard pseudo-random algorithm to generate the
  33           randomized interface identifier, instead of one described in RFC 3041.
  34
  35           By default the kernel does 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
  42 config 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 which improves the ability of hosts
  47           to pick an appropriate router, especially when the hosts
  48           are placed in a multi-homed network.
  49
  50           If unsure, say N.
  51
  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
  60 config 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
  70 config INET6_AH
  71         tristate "IPv6: AH transformation"
  72         select XFRM_ALGO
  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
  82 config INET6_ESP
  83         tristate "IPv6: ESP transformation"
  84         select XFRM_ALGO
  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
  97 config 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
 107 config 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
 116 config INET6_XFRM_TUNNEL
 117         tristate
 118         select INET6_TUNNEL
 119         default n
 120
 121 config INET6_TUNNEL
 122         tristate
 123         default n
 124
 125 config 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
 134 config 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
 143 config 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
 152 config 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
 159 config 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. If unsure, say Y.
 172
 173 config IPV6_SIT_6RD
 174         bool "IPv6: IPv6 Rapid Deployment (6RD) (EXPERIMENTAL)"
 175         depends on IPV6_SIT && EXPERIMENTAL
 176         default n
 177         ---help---
 178           IPv6 Rapid Deployment (6rd; draft-ietf-softwire-ipv6-6rd) builds upon
 179           mechanisms of 6to4 (RFC3056) to enable a service provider to rapidly
 180           deploy IPv6 unicast service to IPv4 sites to which it provides
 181           customer premise equipment.  Like 6to4, it utilizes stateless IPv6 in
 182           IPv4 encapsulation in order to transit IPv4-only network
 183           infrastructure.  Unlike 6to4, a 6rd service provider uses an IPv6
 184           prefix of its own in place of the fixed 6to4 prefix.
 185
 186           With this option enabled, the SIT driver offers 6rd functionality by
 187           providing additional ioctl API to configure the IPv6 Prefix for in
 188           stead of static 2002::/16 for 6to4.
 189
 190           If unsure, say N.
 191
 192 config IPV6_NDISC_NODETYPE
 193         bool
 194
 195 config IPV6_TUNNEL
 196         tristate "IPv6: IP-in-IPv6 tunnel (RFC2473)"
 197         select INET6_TUNNEL
 198         ---help---
 199           Support for IPv6-in-IPv6 and IPv4-in-IPv6 tunnels described in
 200           RFC 2473.
 201
 202           If unsure, say N.
 203
 204 config IPV6_MULTIPLE_TABLES
 205         bool "IPv6: Multiple Routing Tables"
 206         depends on EXPERIMENTAL
 207         select FIB_RULES
 208         ---help---
 209           Support multiple routing tables.
 210
 211 config IPV6_SUBTREES
 212         bool "IPv6: source address based routing"
 213         depends on IPV6_MULTIPLE_TABLES
 214         ---help---
 215           Enable routing by source address or prefix.
 216
 217           The destination address is still the primary routing key, so mixing
 218           normal and source prefix specific routes in the same routing table
 219           may sometimes lead to unintended routing behavior.  This can be
 220           avoided by defining different routing tables for the normal and
 221           source prefix specific routes.
 222
 223           If unsure, say N.
 224
 225 config IPV6_MROUTE
 226         bool "IPv6: multicast routing (EXPERIMENTAL)"
 227         depends on IPV6 && EXPERIMENTAL
 228         ---help---
 229           Experimental support for IPv6 multicast forwarding.
 230           If unsure, say N.
 231
 232 config IPV6_MROUTE_MULTIPLE_TABLES
 233         bool "IPv6: multicast policy routing"
 234         depends on IPV6_MROUTE
 235         select FIB_RULES
 236         help
 237           Normally, a multicast router runs a userspace daemon and decides
 238           what to do with a multicast packet based on the source and
 239           destination addresses. If you say Y here, the multicast router
 240           will also be able to take interfaces and packet marks into
 241           account and run multiple instances of userspace daemons
 242           simultaneously, each one handling a single table.
 243
 244           If unsure, say N.
 245
 246 config IPV6_PIMSM_V2
 247         bool "IPv6: PIM-SM version 2 support (EXPERIMENTAL)"
 248         depends on IPV6_MROUTE
 249         ---help---
 250           Support for IPv6 PIM multicast routing protocol PIM-SMv2.
 251           If unsure, say N.
 252
 253 endif # IPV6