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 INET6_AH
  61         tristate "IPv6: AH transformation"
  62         depends on IPV6
  63         select XFRM
  64         select CRYPTO
  65         select CRYPTO_HMAC
  66         select CRYPTO_MD5
  67         select CRYPTO_SHA1
  68         ---help---
  69           Support for IPsec AH.
  70
  71           If unsure, say Y.
  72
  73 config INET6_ESP
  74         tristate "IPv6: ESP transformation"
  75         depends on IPV6
  76         select XFRM
  77         select CRYPTO
  78         select CRYPTO_HMAC
  79         select CRYPTO_MD5
  80         select CRYPTO_CBC
  81         select CRYPTO_SHA1
  82         select CRYPTO_DES
  83         ---help---
  84           Support for IPsec ESP.
  85
  86           If unsure, say Y.
  87
  88 config INET6_IPCOMP
  89         tristate "IPv6: IPComp transformation"
  90         depends on IPV6
  91         select XFRM
  92         select INET6_XFRM_TUNNEL
  93         select CRYPTO
  94         select CRYPTO_DEFLATE
  95         ---help---
  96           Support for IP Payload Compression Protocol (IPComp) (RFC3173),
  97           typically needed for IPsec.
  98
  99           If unsure, say Y.
 100
 101 config IPV6_MIP6
 102         bool "IPv6: Mobility (EXPERIMENTAL)"
 103         depends on IPV6 && EXPERIMENTAL
 104         select XFRM
 105         ---help---
 106           Support for IPv6 Mobility described in RFC 3775.
 107
 108           If unsure, say N.
 109
 110 config INET6_XFRM_TUNNEL
 111         tristate
 112         select INET6_TUNNEL
 113         default n
 114
 115 config INET6_TUNNEL
 116         tristate
 117         default n
 118
 119 config INET6_XFRM_MODE_TRANSPORT
 120         tristate "IPv6: IPsec transport mode"
 121         depends on IPV6
 122         default IPV6
 123         select XFRM
 124         ---help---
 125           Support for IPsec transport mode.
 126
 127           If unsure, say Y.
 128
 129 config INET6_XFRM_MODE_TUNNEL
 130         tristate "IPv6: IPsec tunnel mode"
 131         depends on IPV6
 132         default IPV6
 133         select XFRM
 134         ---help---
 135           Support for IPsec tunnel mode.
 136
 137           If unsure, say Y.
 138
 139 config INET6_XFRM_MODE_BEET
 140         tristate "IPv6: IPsec BEET mode"
 141         depends on IPV6
 142         default IPV6
 143         select XFRM
 144         ---help---
 145           Support for IPsec BEET mode.
 146
 147           If unsure, say Y.
 148
 149 config INET6_XFRM_MODE_ROUTEOPTIMIZATION
 150         tristate "IPv6: MIPv6 route optimization mode (EXPERIMENTAL)"
 151         depends on IPV6 && EXPERIMENTAL
 152         select XFRM
 153         ---help---
 154           Support for MIPv6 route optimization mode.
 155
 156 config IPV6_SIT
 157         tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)"
 158         depends on IPV6
 159         default y
 160         ---help---
 161           Tunneling means encapsulating data of one protocol type within
 162           another protocol and sending it over a channel that understands the
 163           encapsulating protocol. This driver implements encapsulation of IPv6
 164           into IPv4 packets. This is useful if you want to connect two IPv6
 165           networks over an IPv4-only path.
 166
 167           Saying M here will produce a module called sit.ko. If unsure, say Y.
 168
 169 config IPV6_TUNNEL
 170         tristate "IPv6: IPv6-in-IPv6 tunnel"
 171         select INET6_TUNNEL
 172         depends on IPV6
 173         ---help---
 174           Support for IPv6-in-IPv6 tunnels described in RFC 2473.
 175
 176           If unsure, say N.
 177
 178 config IPV6_MULTIPLE_TABLES
 179         bool "IPv6: Multiple Routing Tables"
 180         depends on IPV6 && EXPERIMENTAL
 181         select FIB_RULES
 182         ---help---
 183           Support multiple routing tables.
 184
 185 config IPV6_SUBTREES
 186         bool "IPv6: source address based routing"
 187         depends on IPV6_MULTIPLE_TABLES
 188         ---help---
 189           Enable routing by source address or prefix.
 190
 191           The destination address is still the primary routing key, so mixing
 192           normal and source prefix specific routes in the same routing table
 193           may sometimes lead to unintended routing behavior.  This can be
 194           avoided by defining different routing tables for the normal and
 195           source prefix specific routes.
 196
 197           If unsure, say N.
 198