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_ROUTEOPTIMIZATION
 140         tristate "IPv6: MIPv6 route optimization mode (EXPERIMENTAL)"
 141         depends on IPV6 && EXPERIMENTAL
 142         select XFRM
 143         ---help---
 144           Support for MIPv6 route optimization mode.
 145
 146 config IPV6_TUNNEL
 147         tristate "IPv6: IPv6-in-IPv6 tunnel"
 148         select INET6_TUNNEL
 149         depends on IPV6
 150         ---help---
 151           Support for IPv6-in-IPv6 tunnels described in RFC 2473.
 152
 153           If unsure, say N.
 154
 155 config IPV6_SUBTREES
 156         bool "IPv6: source address based routing"
 157         depends on IPV6 && EXPERIMENTAL
 158         ---help---
 159           Enable routing by source address or prefix.
 160
 161           The destination address is still the primary routing key, so mixing
 162           normal and source prefix specific routes in the same routing table
 163           may sometimes lead to unintended routing behavior.  This can be
 164           avoided by defining different routing tables for the normal and
 165           source prefix specific routes.
 166
 167           If unsure, say N.
 168
 169 config IPV6_MULTIPLE_TABLES
 170         bool "IPv6: Multiple Routing Tables"
 171         depends on IPV6 && EXPERIMENTAL
 172         select FIB_RULES
 173         ---help---
 174           Support multiple routing tables.
 175
 176 config IPV6_ROUTE_FWMARK
 177         bool "IPv6: use netfilter MARK value as routing key"
 178         depends on IPV6_MULTIPLE_TABLES && NETFILTER
 179         ---help---
 180           If you say Y here, you will be able to specify different routes for
 181           packets with different mark values (see iptables(8), MARK target).
 182