1# 2# IPv6 configuration 3# 4 5# IPv6 as module will cause a CRASH if you try to unload it 6menuconfig 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 <https://en.wikipedia.org/wiki/IPv6>. 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 22if IPV6 23 24config IPV6_ROUTER_PREF 25 bool "IPv6: Router Preference (RFC 4191) support" 26 ---help--- 27 Router Preference is an optional extension to the Router 28 Advertisement message which improves the ability of hosts 29 to pick an appropriate router, especially when the hosts 30 are placed in a multi-homed network. 31 32 If unsure, say N. 33 34config IPV6_ROUTE_INFO 35 bool "IPv6: Route Information (RFC 4191) support" 36 depends on IPV6_ROUTER_PREF 37 ---help--- 38 This is experimental support of Route Information. 39 40 If unsure, say N. 41 42config IPV6_OPTIMISTIC_DAD 43 bool "IPv6: Enable RFC 4429 Optimistic DAD" 44 ---help--- 45 This is experimental support for optimistic Duplicate 46 Address Detection. It allows for autoconfigured addresses 47 to be used more quickly. 48 49 If unsure, say N. 50 51config INET6_AH 52 tristate "IPv6: AH transformation" 53 select XFRM_ALGO 54 select CRYPTO 55 select CRYPTO_HMAC 56 select CRYPTO_MD5 57 select CRYPTO_SHA1 58 ---help--- 59 Support for IPsec AH. 60 61 If unsure, say Y. 62 63config INET6_ESP 64 tristate "IPv6: ESP transformation" 65 select XFRM_ALGO 66 select CRYPTO 67 select CRYPTO_AUTHENC 68 select CRYPTO_HMAC 69 select CRYPTO_MD5 70 select CRYPTO_CBC 71 select CRYPTO_SHA1 72 select CRYPTO_DES 73 ---help--- 74 Support for IPsec ESP. 75 76 If unsure, say Y. 77 78config INET6_IPCOMP 79 tristate "IPv6: IPComp transformation" 80 select INET6_XFRM_TUNNEL 81 select XFRM_IPCOMP 82 ---help--- 83 Support for IP Payload Compression Protocol (IPComp) (RFC3173), 84 typically needed for IPsec. 85 86 If unsure, say Y. 87 88config IPV6_MIP6 89 tristate "IPv6: Mobility" 90 select XFRM 91 ---help--- 92 Support for IPv6 Mobility described in RFC 3775. 93 94 If unsure, say N. 95 96config INET6_XFRM_TUNNEL 97 tristate 98 select INET6_TUNNEL 99 default n 100 101config INET6_TUNNEL 102 tristate 103 default n 104 105config INET6_XFRM_MODE_TRANSPORT 106 tristate "IPv6: IPsec transport mode" 107 default IPV6 108 select XFRM 109 ---help--- 110 Support for IPsec transport mode. 111 112 If unsure, say Y. 113 114config INET6_XFRM_MODE_TUNNEL 115 tristate "IPv6: IPsec tunnel mode" 116 default IPV6 117 select XFRM 118 ---help--- 119 Support for IPsec tunnel mode. 120 121 If unsure, say Y. 122 123config INET6_XFRM_MODE_BEET 124 tristate "IPv6: IPsec BEET mode" 125 default IPV6 126 select XFRM 127 ---help--- 128 Support for IPsec BEET mode. 129 130 If unsure, say Y. 131 132config INET6_XFRM_MODE_ROUTEOPTIMIZATION 133 tristate "IPv6: MIPv6 route optimization mode" 134 select XFRM 135 ---help--- 136 Support for MIPv6 route optimization mode. 137 138config IPV6_VTI 139tristate "Virtual (secure) IPv6: tunneling" 140 select IPV6_TUNNEL 141 select NET_IP_TUNNEL 142 depends on INET6_XFRM_MODE_TUNNEL 143 ---help--- 144 Tunneling means encapsulating data of one protocol type within 145 another protocol and sending it over a channel that understands the 146 encapsulating protocol. This can be used with xfrm mode tunnel to give 147 the notion of a secure tunnel for IPSEC and then use routing protocol 148 on top. 149 150config IPV6_SIT 151 tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)" 152 select INET_TUNNEL 153 select NET_IP_TUNNEL 154 select IPV6_NDISC_NODETYPE 155 default y 156 ---help--- 157 Tunneling means encapsulating data of one protocol type within 158 another protocol and sending it over a channel that understands the 159 encapsulating protocol. This driver implements encapsulation of IPv6 160 into IPv4 packets. This is useful if you want to connect two IPv6 161 networks over an IPv4-only path. 162 163 Saying M here will produce a module called sit. If unsure, say Y. 164 165config IPV6_SIT_6RD 166 bool "IPv6: IPv6 Rapid Deployment (6RD)" 167 depends on IPV6_SIT 168 default n 169 ---help--- 170 IPv6 Rapid Deployment (6rd; draft-ietf-softwire-ipv6-6rd) builds upon 171 mechanisms of 6to4 (RFC3056) to enable a service provider to rapidly 172 deploy IPv6 unicast service to IPv4 sites to which it provides 173 customer premise equipment. Like 6to4, it utilizes stateless IPv6 in 174 IPv4 encapsulation in order to transit IPv4-only network 175 infrastructure. Unlike 6to4, a 6rd service provider uses an IPv6 176 prefix of its own in place of the fixed 6to4 prefix. 177 178 With this option enabled, the SIT driver offers 6rd functionality by 179 providing additional ioctl API to configure the IPv6 Prefix for in 180 stead of static 2002::/16 for 6to4. 181 182 If unsure, say N. 183 184config IPV6_NDISC_NODETYPE 185 bool 186 187config IPV6_TUNNEL 188 tristate "IPv6: IP-in-IPv6 tunnel (RFC2473)" 189 select INET6_TUNNEL 190 ---help--- 191 Support for IPv6-in-IPv6 and IPv4-in-IPv6 tunnels described in 192 RFC 2473. 193 194 If unsure, say N. 195 196config IPV6_GRE 197 tristate "IPv6: GRE tunnel" 198 select IPV6_TUNNEL 199 select NET_IP_TUNNEL 200 ---help--- 201 Tunneling means encapsulating data of one protocol type within 202 another protocol and sending it over a channel that understands the 203 encapsulating protocol. This particular tunneling driver implements 204 GRE (Generic Routing Encapsulation) and at this time allows 205 encapsulating of IPv4 or IPv6 over existing IPv6 infrastructure. 206 This driver is useful if the other endpoint is a Cisco router: Cisco 207 likes GRE much better than the other Linux tunneling driver ("IP 208 tunneling" above). In addition, GRE allows multicast redistribution 209 through the tunnel. 210 211 Saying M here will produce a module called ip6_gre. If unsure, say N. 212 213config IPV6_MULTIPLE_TABLES 214 bool "IPv6: Multiple Routing Tables" 215 select FIB_RULES 216 ---help--- 217 Support multiple routing tables. 218 219config IPV6_SUBTREES 220 bool "IPv6: source address based routing" 221 depends on IPV6_MULTIPLE_TABLES 222 ---help--- 223 Enable routing by source address or prefix. 224 225 The destination address is still the primary routing key, so mixing 226 normal and source prefix specific routes in the same routing table 227 may sometimes lead to unintended routing behavior. This can be 228 avoided by defining different routing tables for the normal and 229 source prefix specific routes. 230 231 If unsure, say N. 232 233config IPV6_MROUTE 234 bool "IPv6: multicast routing" 235 depends on IPV6 236 ---help--- 237 Experimental support for IPv6 multicast forwarding. 238 If unsure, say N. 239 240config IPV6_MROUTE_MULTIPLE_TABLES 241 bool "IPv6: multicast policy routing" 242 depends on IPV6_MROUTE 243 select FIB_RULES 244 help 245 Normally, a multicast router runs a userspace daemon and decides 246 what to do with a multicast packet based on the source and 247 destination addresses. If you say Y here, the multicast router 248 will also be able to take interfaces and packet marks into 249 account and run multiple instances of userspace daemons 250 simultaneously, each one handling a single table. 251 252 If unsure, say N. 253 254config IPV6_PIMSM_V2 255 bool "IPv6: PIM-SM version 2 support" 256 depends on IPV6_MROUTE 257 ---help--- 258 Support for IPv6 PIM multicast routing protocol PIM-SMv2. 259 If unsure, say N. 260 261endif # IPV6 262