net/ipv6/Kconfig

   1 #
   2 # IPv6 configuration
   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
   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 config IPV6_PRIVACY
  23         bool "IPv6: Privacy Extensions support"
  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
  31           We use our standard pseudo random algorithm to generate randomized
  32           interface identifier, instead of one described in RFC 3041.
  33
  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
  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
  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 IPV6 && 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         depends on IPV6
  73         select XFRM
  74         select CRYPTO
  75         select CRYPTO_HMAC
  76         select CRYPTO_MD5
  77         select CRYPTO_SHA1
  78         ---help---
  79           Support for IPsec AH.
  80
  81           If unsure, say Y.
  82
  83 config INET6_ESP
  84         tristate "IPv6: ESP transformation"
  85         depends on IPV6
  86         select XFRM
  87         select CRYPTO
  88         select CRYPTO_HMAC
  89         select CRYPTO_MD5
  90         select CRYPTO_CBC
  91         select CRYPTO_SHA1
  92         select CRYPTO_DES
  93         ---help---
  94           Support for IPsec ESP.
  95
  96           If unsure, say Y.
  97
  98 config INET6_IPCOMP
  99         tristate "IPv6: IPComp transformation"
 100         depends on IPV6
 101         select XFRM
 102         select INET6_XFRM_TUNNEL
 103         select CRYPTO
 104         select CRYPTO_DEFLATE
 105         ---help---
 106           Support for IP Payload Compression Protocol (IPComp) (RFC3173),
 107           typically needed for IPsec.
 108
 109           If unsure, say Y.
 110
 111 config IPV6_MIP6
 112         tristate "IPv6: Mobility (EXPERIMENTAL)"
 113         depends on IPV6 && EXPERIMENTAL
 114         select XFRM
 115         ---help---
 116           Support for IPv6 Mobility described in RFC 3775.
 117
 118           If unsure, say N.
 119
 120 config INET6_XFRM_TUNNEL
 121         tristate
 122         select INET6_TUNNEL
 123         default n
 124
 125 config INET6_TUNNEL
 126         tristate
 127         default n
 128
 129 config INET6_XFRM_MODE_TRANSPORT
 130         tristate "IPv6: IPsec transport mode"
 131         depends on IPV6
 132         default IPV6
 133         select XFRM
 134         ---help---
 135           Support for IPsec transport mode.
 136
 137           If unsure, say Y.
 138
 139 config INET6_XFRM_MODE_TUNNEL
 140         tristate "IPv6: IPsec tunnel mode"
 141         depends on IPV6
 142         default IPV6
 143         select XFRM
 144         ---help---
 145           Support for IPsec tunnel mode.
 146
 147           If unsure, say Y.
 148
 149 config INET6_XFRM_MODE_BEET
 150         tristate "IPv6: IPsec BEET mode"
 151         depends on IPV6
 152         default IPV6
 153         select XFRM
 154         ---help---
 155           Support for IPsec BEET mode.
 156
 157           If unsure, say Y.
 158
 159 config INET6_XFRM_MODE_ROUTEOPTIMIZATION
 160         tristate "IPv6: MIPv6 route optimization mode (EXPERIMENTAL)"
 161         depends on IPV6 && EXPERIMENTAL
 162         select XFRM
 163         ---help---
 164           Support for MIPv6 route optimization mode.
 165
 166 config IPV6_SIT
 167         tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)"
 168         depends on IPV6
 169         select INET_TUNNEL
 170         default y
 171         ---help---
 172           Tunneling means encapsulating data of one protocol type within
 173           another protocol and sending it over a channel that understands the
 174           encapsulating protocol. This driver implements encapsulation of IPv6
 175           into IPv4 packets. This is useful if you want to connect two IPv6
 176           networks over an IPv4-only path.
 177
 178           Saying M here will produce a module called sit.ko. If unsure, say Y.
 179
 180 config IPV6_TUNNEL
 181         tristate "IPv6: IPv6-in-IPv6 tunnel"
 182         select INET6_TUNNEL
 183         depends on IPV6
 184         ---help---
 185           Support for IPv6-in-IPv6 tunnels described in RFC 2473.
 186
 187           If unsure, say N.
 188
 189 config IPV6_MULTIPLE_TABLES
 190         bool "IPv6: Multiple Routing Tables"
 191         depends on IPV6 && EXPERIMENTAL
 192         select FIB_RULES
 193         ---help---
 194           Support multiple routing tables.
 195
 196 config IPV6_SUBTREES
 197         bool "IPv6: source address based routing"
 198         depends on IPV6_MULTIPLE_TABLES
 199         ---help---
 200           Enable routing by source address or prefix.
 201
 202           The destination address is still the primary routing key, so mixing
 203           normal and source prefix specific routes in the same routing table
 204           may sometimes lead to unintended routing behavior.  This can be
 205           avoided by defining different routing tables for the normal and
 206           source prefix specific routes.
 207
 208           If unsure, say N.
 209