11da177e4SLinus Torvalds# 21da177e4SLinus Torvalds# IPv6 configuration 31da177e4SLinus Torvalds# 46a2e9b73SSam Ravnborg 56a2e9b73SSam Ravnborg# IPv6 as module will cause a CRASH if you try to unload it 60b18542bSJan Engelhardtmenuconfig IPV6 76a2e9b73SSam Ravnborg tristate "The IPv6 protocol" 86a2e9b73SSam Ravnborg default m 96a2e9b73SSam Ravnborg ---help--- 106a2e9b73SSam Ravnborg This is complemental support for the IP version 6. 116a2e9b73SSam Ravnborg You will still be able to do traditional IPv4 networking as well. 126a2e9b73SSam Ravnborg 136a2e9b73SSam Ravnborg For general information about IPv6, see 14242260fbSChristian Kujau <https://en.wikipedia.org/wiki/IPv6>. 156a2e9b73SSam Ravnborg For Linux IPv6 development information, see <http://www.linux-ipv6.org>. 166a2e9b73SSam Ravnborg For specific information about IPv6 under Linux, read the HOWTO at 176a2e9b73SSam Ravnborg <http://www.bieringer.de/linux/IPv6/>. 186a2e9b73SSam Ravnborg 196a2e9b73SSam Ravnborg To compile this protocol support as a module, choose M here: the 206a2e9b73SSam Ravnborg module will be called ipv6. 216a2e9b73SSam Ravnborg 220b18542bSJan Engelhardtif IPV6 230b18542bSJan Engelhardt 24ebacaaa0SYOSHIFUJI Hideakiconfig IPV6_ROUTER_PREF 25ebacaaa0SYOSHIFUJI Hideaki bool "IPv6: Router Preference (RFC 4191) support" 26ebacaaa0SYOSHIFUJI Hideaki ---help--- 27ebacaaa0SYOSHIFUJI Hideaki Router Preference is an optional extension to the Router 28692105b8SMatt LaPlante Advertisement message which improves the ability of hosts 29692105b8SMatt LaPlante to pick an appropriate router, especially when the hosts 30692105b8SMatt LaPlante are placed in a multi-homed network. 31ebacaaa0SYOSHIFUJI Hideaki 32ebacaaa0SYOSHIFUJI Hideaki If unsure, say N. 33ebacaaa0SYOSHIFUJI Hideaki 3470ceb4f5SYOSHIFUJI Hideakiconfig IPV6_ROUTE_INFO 35f9ceb16eSKees Cook bool "IPv6: Route Information (RFC 4191) support" 36f9ceb16eSKees Cook depends on IPV6_ROUTER_PREF 3770ceb4f5SYOSHIFUJI Hideaki ---help--- 3870ceb4f5SYOSHIFUJI Hideaki This is experimental support of Route Information. 3970ceb4f5SYOSHIFUJI Hideaki 4070ceb4f5SYOSHIFUJI Hideaki If unsure, say N. 4170ceb4f5SYOSHIFUJI Hideaki 4295c385b4SNeil Hormanconfig IPV6_OPTIMISTIC_DAD 43f9ceb16eSKees Cook bool "IPv6: Enable RFC 4429 Optimistic DAD" 4495c385b4SNeil Horman ---help--- 4595c385b4SNeil Horman This is experimental support for optimistic Duplicate 4695c385b4SNeil Horman Address Detection. It allows for autoconfigured addresses 4795c385b4SNeil Horman to be used more quickly. 4895c385b4SNeil Horman 4995c385b4SNeil Horman If unsure, say N. 5095c385b4SNeil Horman 511da177e4SLinus Torvaldsconfig INET6_AH 521da177e4SLinus Torvalds tristate "IPv6: AH transformation" 537e152524SJan Beulich select XFRM_ALGO 541da177e4SLinus Torvalds select CRYPTO 551da177e4SLinus Torvalds select CRYPTO_HMAC 561da177e4SLinus Torvalds select CRYPTO_MD5 571da177e4SLinus Torvalds select CRYPTO_SHA1 581da177e4SLinus Torvalds ---help--- 591da177e4SLinus Torvalds Support for IPsec AH. 601da177e4SLinus Torvalds 611da177e4SLinus Torvalds If unsure, say Y. 621da177e4SLinus Torvalds 631da177e4SLinus Torvaldsconfig INET6_ESP 641da177e4SLinus Torvalds tristate "IPv6: ESP transformation" 657e152524SJan Beulich select XFRM_ALGO 661da177e4SLinus Torvalds select CRYPTO 67ed58dd41SHerbert Xu select CRYPTO_AUTHENC 681da177e4SLinus Torvalds select CRYPTO_HMAC 691da177e4SLinus Torvalds select CRYPTO_MD5 706b7326c8SHerbert Xu select CRYPTO_CBC 711da177e4SLinus Torvalds select CRYPTO_SHA1 721da177e4SLinus Torvalds select CRYPTO_DES 731da177e4SLinus Torvalds ---help--- 741da177e4SLinus Torvalds Support for IPsec ESP. 751da177e4SLinus Torvalds 761da177e4SLinus Torvalds If unsure, say Y. 771da177e4SLinus Torvalds 781da177e4SLinus Torvaldsconfig INET6_IPCOMP 791da177e4SLinus Torvalds tristate "IPv6: IPComp transformation" 80d2acc347SHerbert Xu select INET6_XFRM_TUNNEL 816fccab67SHerbert Xu select XFRM_IPCOMP 821da177e4SLinus Torvalds ---help--- 831da177e4SLinus Torvalds Support for IP Payload Compression Protocol (IPComp) (RFC3173), 841da177e4SLinus Torvalds typically needed for IPsec. 851da177e4SLinus Torvalds 861da177e4SLinus Torvalds If unsure, say Y. 871da177e4SLinus Torvalds 88ee538268SMasahide NAKAMURAconfig IPV6_MIP6 89f9ceb16eSKees Cook tristate "IPv6: Mobility" 90ee538268SMasahide NAKAMURA select XFRM 91ee538268SMasahide NAKAMURA ---help--- 92ee538268SMasahide NAKAMURA Support for IPv6 Mobility described in RFC 3775. 93ee538268SMasahide NAKAMURA 94ee538268SMasahide NAKAMURA If unsure, say N. 95ee538268SMasahide NAKAMURA 96d2acc347SHerbert Xuconfig INET6_XFRM_TUNNEL 97d2acc347SHerbert Xu tristate 98d2acc347SHerbert Xu select INET6_TUNNEL 99d2acc347SHerbert Xu default n 1001da177e4SLinus Torvalds 101d2acc347SHerbert Xuconfig INET6_TUNNEL 102d2acc347SHerbert Xu tristate 103d2acc347SHerbert Xu default n 1041da177e4SLinus Torvalds 105b59f45d0SHerbert Xuconfig INET6_XFRM_MODE_TRANSPORT 106b59f45d0SHerbert Xu tristate "IPv6: IPsec transport mode" 107b59f45d0SHerbert Xu default IPV6 108b59f45d0SHerbert Xu select XFRM 109b59f45d0SHerbert Xu ---help--- 110b59f45d0SHerbert Xu Support for IPsec transport mode. 111b59f45d0SHerbert Xu 112b59f45d0SHerbert Xu If unsure, say Y. 113b59f45d0SHerbert Xu 114b59f45d0SHerbert Xuconfig INET6_XFRM_MODE_TUNNEL 115b59f45d0SHerbert Xu tristate "IPv6: IPsec tunnel mode" 116b59f45d0SHerbert Xu default IPV6 117b59f45d0SHerbert Xu select XFRM 118b59f45d0SHerbert Xu ---help--- 119b59f45d0SHerbert Xu Support for IPsec tunnel mode. 120b59f45d0SHerbert Xu 121b59f45d0SHerbert Xu If unsure, say Y. 122b59f45d0SHerbert Xu 1230a69452cSDiego Beltramiconfig INET6_XFRM_MODE_BEET 1240a69452cSDiego Beltrami tristate "IPv6: IPsec BEET mode" 1250a69452cSDiego Beltrami default IPV6 1260a69452cSDiego Beltrami select XFRM 1270a69452cSDiego Beltrami ---help--- 1280a69452cSDiego Beltrami Support for IPsec BEET mode. 1290a69452cSDiego Beltrami 1300a69452cSDiego Beltrami If unsure, say Y. 1310a69452cSDiego Beltrami 1321d71627dSMasahide NAKAMURAconfig INET6_XFRM_MODE_ROUTEOPTIMIZATION 133f9ceb16eSKees Cook tristate "IPv6: MIPv6 route optimization mode" 1341d71627dSMasahide NAKAMURA select XFRM 1351d71627dSMasahide NAKAMURA ---help--- 1361d71627dSMasahide NAKAMURA Support for MIPv6 route optimization mode. 1371d71627dSMasahide NAKAMURA 138ed1efb2aSSteffen Klassertconfig IPV6_VTI 139ed1efb2aSSteffen Klasserttristate "Virtual (secure) IPv6: tunneling" 140ed1efb2aSSteffen Klassert select IPV6_TUNNEL 141876fc03aSSteffen Klassert select NET_IP_TUNNEL 142ed1efb2aSSteffen Klassert depends on INET6_XFRM_MODE_TUNNEL 143ed1efb2aSSteffen Klassert ---help--- 144ed1efb2aSSteffen Klassert Tunneling means encapsulating data of one protocol type within 145ed1efb2aSSteffen Klassert another protocol and sending it over a channel that understands the 146ed1efb2aSSteffen Klassert encapsulating protocol. This can be used with xfrm mode tunnel to give 147ed1efb2aSSteffen Klassert the notion of a secure tunnel for IPSEC and then use routing protocol 148ed1efb2aSSteffen Klassert on top. 149ed1efb2aSSteffen Klassert 150989e5b96SJoerg Roedelconfig IPV6_SIT 151989e5b96SJoerg Roedel tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)" 152c73cb5a2SKazunori MIYAZAWA select INET_TUNNEL 153f61dd388SPravin B Shelar select NET_IP_TUNNEL 154de357cc0SYOSHIFUJI Hideaki select IPV6_NDISC_NODETYPE 155989e5b96SJoerg Roedel default y 156989e5b96SJoerg Roedel ---help--- 157989e5b96SJoerg Roedel Tunneling means encapsulating data of one protocol type within 158989e5b96SJoerg Roedel another protocol and sending it over a channel that understands the 159989e5b96SJoerg Roedel encapsulating protocol. This driver implements encapsulation of IPv6 1605c5d6dabSDavid S. Miller into IPv4 packets. This is useful if you want to connect two IPv6 161989e5b96SJoerg Roedel networks over an IPv4-only path. 162989e5b96SJoerg Roedel 1634737f097SPavel Machek Saying M here will produce a module called sit. If unsure, say Y. 164989e5b96SJoerg Roedel 165fa857afcSYOSHIFUJI Hideaki / 吉藤英明config IPV6_SIT_6RD 166f9ceb16eSKees Cook bool "IPv6: IPv6 Rapid Deployment (6RD)" 167f9ceb16eSKees Cook depends on IPV6_SIT 168fa857afcSYOSHIFUJI Hideaki / 吉藤英明 default n 169fa857afcSYOSHIFUJI Hideaki / 吉藤英明 ---help--- 170fa857afcSYOSHIFUJI Hideaki / 吉藤英明 IPv6 Rapid Deployment (6rd; draft-ietf-softwire-ipv6-6rd) builds upon 171fa857afcSYOSHIFUJI Hideaki / 吉藤英明 mechanisms of 6to4 (RFC3056) to enable a service provider to rapidly 172fa857afcSYOSHIFUJI Hideaki / 吉藤英明 deploy IPv6 unicast service to IPv4 sites to which it provides 173fa857afcSYOSHIFUJI Hideaki / 吉藤英明 customer premise equipment. Like 6to4, it utilizes stateless IPv6 in 174fa857afcSYOSHIFUJI Hideaki / 吉藤英明 IPv4 encapsulation in order to transit IPv4-only network 175fa857afcSYOSHIFUJI Hideaki / 吉藤英明 infrastructure. Unlike 6to4, a 6rd service provider uses an IPv6 176fa857afcSYOSHIFUJI Hideaki / 吉藤英明 prefix of its own in place of the fixed 6to4 prefix. 177fa857afcSYOSHIFUJI Hideaki / 吉藤英明 178fa857afcSYOSHIFUJI Hideaki / 吉藤英明 With this option enabled, the SIT driver offers 6rd functionality by 179fa857afcSYOSHIFUJI Hideaki / 吉藤英明 providing additional ioctl API to configure the IPv6 Prefix for in 180fa857afcSYOSHIFUJI Hideaki / 吉藤英明 stead of static 2002::/16 for 6to4. 181fa857afcSYOSHIFUJI Hideaki / 吉藤英明 182fa857afcSYOSHIFUJI Hideaki / 吉藤英明 If unsure, say N. 183fa857afcSYOSHIFUJI Hideaki / 吉藤英明 184de357cc0SYOSHIFUJI Hideakiconfig IPV6_NDISC_NODETYPE 185de357cc0SYOSHIFUJI Hideaki bool 186de357cc0SYOSHIFUJI Hideaki 1871da177e4SLinus Torvaldsconfig IPV6_TUNNEL 18838fe999eSYOSHIFUJI Hideaki tristate "IPv6: IP-in-IPv6 tunnel (RFC2473)" 189d2acc347SHerbert Xu select INET6_TUNNEL 1901da177e4SLinus Torvalds ---help--- 19138fe999eSYOSHIFUJI Hideaki Support for IPv6-in-IPv6 and IPv4-in-IPv6 tunnels described in 19238fe999eSYOSHIFUJI Hideaki RFC 2473. 1931da177e4SLinus Torvalds 1941da177e4SLinus Torvalds If unsure, say N. 1951da177e4SLinus Torvalds 196c12b395aSxeb@mail.ruconfig IPV6_GRE 197c12b395aSxeb@mail.ru tristate "IPv6: GRE tunnel" 198c12b395aSxeb@mail.ru select IPV6_TUNNEL 199f61dd388SPravin B Shelar select NET_IP_TUNNEL 200c12b395aSxeb@mail.ru ---help--- 201c12b395aSxeb@mail.ru Tunneling means encapsulating data of one protocol type within 202c12b395aSxeb@mail.ru another protocol and sending it over a channel that understands the 203c12b395aSxeb@mail.ru encapsulating protocol. This particular tunneling driver implements 204c12b395aSxeb@mail.ru GRE (Generic Routing Encapsulation) and at this time allows 205c12b395aSxeb@mail.ru encapsulating of IPv4 or IPv6 over existing IPv6 infrastructure. 206c12b395aSxeb@mail.ru This driver is useful if the other endpoint is a Cisco router: Cisco 207c12b395aSxeb@mail.ru likes GRE much better than the other Linux tunneling driver ("IP 208c12b395aSxeb@mail.ru tunneling" above). In addition, GRE allows multicast redistribution 209c12b395aSxeb@mail.ru through the tunnel. 210c12b395aSxeb@mail.ru 211c12b395aSxeb@mail.ru Saying M here will produce a module called ip6_gre. If unsure, say N. 212c12b395aSxeb@mail.ru 213264e91b6SVille Nuorvalaconfig IPV6_MULTIPLE_TABLES 214264e91b6SVille Nuorvala bool "IPv6: Multiple Routing Tables" 215264e91b6SVille Nuorvala select FIB_RULES 216264e91b6SVille Nuorvala ---help--- 217264e91b6SVille Nuorvala Support multiple routing tables. 218264e91b6SVille Nuorvala 2194e96c2b4SYOSHIFUJI Hideakiconfig IPV6_SUBTREES 2204e96c2b4SYOSHIFUJI Hideaki bool "IPv6: source address based routing" 221264e91b6SVille Nuorvala depends on IPV6_MULTIPLE_TABLES 2224e96c2b4SYOSHIFUJI Hideaki ---help--- 2234e96c2b4SYOSHIFUJI Hideaki Enable routing by source address or prefix. 2244e96c2b4SYOSHIFUJI Hideaki 2254e96c2b4SYOSHIFUJI Hideaki The destination address is still the primary routing key, so mixing 2264e96c2b4SYOSHIFUJI Hideaki normal and source prefix specific routes in the same routing table 2274e96c2b4SYOSHIFUJI Hideaki may sometimes lead to unintended routing behavior. This can be 2284e96c2b4SYOSHIFUJI Hideaki avoided by defining different routing tables for the normal and 2294e96c2b4SYOSHIFUJI Hideaki source prefix specific routes. 2304e96c2b4SYOSHIFUJI Hideaki 2314e96c2b4SYOSHIFUJI Hideaki If unsure, say N. 2324e96c2b4SYOSHIFUJI Hideaki 2337bc570c8SYOSHIFUJI Hideakiconfig IPV6_MROUTE 234f9ceb16eSKees Cook bool "IPv6: multicast routing" 235f9ceb16eSKees Cook depends on IPV6 2367bc570c8SYOSHIFUJI Hideaki ---help--- 2377bc570c8SYOSHIFUJI Hideaki Experimental support for IPv6 multicast forwarding. 2387bc570c8SYOSHIFUJI Hideaki If unsure, say N. 2397bc570c8SYOSHIFUJI Hideaki 240d1db275dSPatrick McHardyconfig IPV6_MROUTE_MULTIPLE_TABLES 241d1db275dSPatrick McHardy bool "IPv6: multicast policy routing" 242d1db275dSPatrick McHardy depends on IPV6_MROUTE 243d1db275dSPatrick McHardy select FIB_RULES 244d1db275dSPatrick McHardy help 245d1db275dSPatrick McHardy Normally, a multicast router runs a userspace daemon and decides 246d1db275dSPatrick McHardy what to do with a multicast packet based on the source and 247d1db275dSPatrick McHardy destination addresses. If you say Y here, the multicast router 248d1db275dSPatrick McHardy will also be able to take interfaces and packet marks into 249d1db275dSPatrick McHardy account and run multiple instances of userspace daemons 250d1db275dSPatrick McHardy simultaneously, each one handling a single table. 251d1db275dSPatrick McHardy 252d1db275dSPatrick McHardy If unsure, say N. 253d1db275dSPatrick McHardy 25414fb64e1SYOSHIFUJI Hideakiconfig IPV6_PIMSM_V2 255f9ceb16eSKees Cook bool "IPv6: PIM-SM version 2 support" 25614fb64e1SYOSHIFUJI Hideaki depends on IPV6_MROUTE 25714fb64e1SYOSHIFUJI Hideaki ---help--- 25814fb64e1SYOSHIFUJI Hideaki Support for IPv6 PIM multicast routing protocol PIM-SMv2. 25914fb64e1SYOSHIFUJI Hideaki If unsure, say N. 26014fb64e1SYOSHIFUJI Hideaki 2610b18542bSJan Engelhardtendif # IPV6 262