1# 2# IPv6 configuration 3# 4 5# IPv6 as module will cause a CRASH if you try to unload it 6config 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 22config 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 41config 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 52config 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 60config 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 70config 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 83config INET6_ESP 84 tristate "IPv6: ESP transformation" 85 depends on IPV6 86 select XFRM 87 select CRYPTO 88 select CRYPTO_AUTHENC 89 select CRYPTO_HMAC 90 select CRYPTO_MD5 91 select CRYPTO_CBC 92 select CRYPTO_SHA1 93 select CRYPTO_DES 94 ---help--- 95 Support for IPsec ESP. 96 97 If unsure, say Y. 98 99config INET6_IPCOMP 100 tristate "IPv6: IPComp transformation" 101 depends on IPV6 102 select XFRM 103 select INET6_XFRM_TUNNEL 104 select CRYPTO 105 select CRYPTO_DEFLATE 106 ---help--- 107 Support for IP Payload Compression Protocol (IPComp) (RFC3173), 108 typically needed for IPsec. 109 110 If unsure, say Y. 111 112config IPV6_MIP6 113 tristate "IPv6: Mobility (EXPERIMENTAL)" 114 depends on IPV6 && EXPERIMENTAL 115 select XFRM 116 ---help--- 117 Support for IPv6 Mobility described in RFC 3775. 118 119 If unsure, say N. 120 121config INET6_XFRM_TUNNEL 122 tristate 123 select INET6_TUNNEL 124 default n 125 126config INET6_TUNNEL 127 tristate 128 default n 129 130config INET6_XFRM_MODE_TRANSPORT 131 tristate "IPv6: IPsec transport mode" 132 depends on IPV6 133 default IPV6 134 select XFRM 135 ---help--- 136 Support for IPsec transport mode. 137 138 If unsure, say Y. 139 140config INET6_XFRM_MODE_TUNNEL 141 tristate "IPv6: IPsec tunnel mode" 142 depends on IPV6 143 default IPV6 144 select XFRM 145 ---help--- 146 Support for IPsec tunnel mode. 147 148 If unsure, say Y. 149 150config INET6_XFRM_MODE_BEET 151 tristate "IPv6: IPsec BEET mode" 152 depends on IPV6 153 default IPV6 154 select XFRM 155 ---help--- 156 Support for IPsec BEET mode. 157 158 If unsure, say Y. 159 160config INET6_XFRM_MODE_ROUTEOPTIMIZATION 161 tristate "IPv6: MIPv6 route optimization mode (EXPERIMENTAL)" 162 depends on IPV6 && EXPERIMENTAL 163 select XFRM 164 ---help--- 165 Support for MIPv6 route optimization mode. 166 167config IPV6_SIT 168 tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)" 169 depends on IPV6 170 select INET_TUNNEL 171 default y 172 ---help--- 173 Tunneling means encapsulating data of one protocol type within 174 another protocol and sending it over a channel that understands the 175 encapsulating protocol. This driver implements encapsulation of IPv6 176 into IPv4 packets. This is useful if you want to connect two IPv6 177 networks over an IPv4-only path. 178 179 Saying M here will produce a module called sit.ko. If unsure, say Y. 180 181config IPV6_TUNNEL 182 tristate "IPv6: IP-in-IPv6 tunnel (RFC2473)" 183 select INET6_TUNNEL 184 depends on IPV6 185 ---help--- 186 Support for IPv6-in-IPv6 and IPv4-in-IPv6 tunnels described in 187 RFC 2473. 188 189 If unsure, say N. 190 191config IPV6_MULTIPLE_TABLES 192 bool "IPv6: Multiple Routing Tables" 193 depends on IPV6 && EXPERIMENTAL 194 select FIB_RULES 195 ---help--- 196 Support multiple routing tables. 197 198config IPV6_SUBTREES 199 bool "IPv6: source address based routing" 200 depends on IPV6_MULTIPLE_TABLES 201 ---help--- 202 Enable routing by source address or prefix. 203 204 The destination address is still the primary routing key, so mixing 205 normal and source prefix specific routes in the same routing table 206 may sometimes lead to unintended routing behavior. This can be 207 avoided by defining different routing tables for the normal and 208 source prefix specific routes. 209 210 If unsure, say N. 211 212