Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | # |
| 2 | # IP configuration |
| 3 | # |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | config IP_MULTICAST |
| 5 | bool "IP: multicasting" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | help |
| 7 | This is code for addressing several networked computers at once, |
| 8 | enlarging your kernel by about 2 KB. You need multicasting if you |
| 9 | intend to participate in the MBONE, a high bandwidth network on top |
| 10 | of the Internet which carries audio and video broadcasts. More |
| 11 | information about the MBONE is on the WWW at |
Jean Sacren | 4960c2c | 2013-06-01 16:23:17 +0000 | [diff] [blame] | 12 | <http://www.savetz.com/mbone/>. For most people, it's safe to say N. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 13 | |
| 14 | config IP_ADVANCED_ROUTER |
| 15 | bool "IP: advanced router" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 16 | ---help--- |
| 17 | If you intend to run your Linux box mostly as a router, i.e. as a |
| 18 | computer that forwards and redistributes network packets, say Y; you |
| 19 | will then be presented with several options that allow more precise |
| 20 | control about the routing process. |
| 21 | |
| 22 | The answer to this question won't directly affect the kernel: |
| 23 | answering N will just cause the configurator to skip all the |
| 24 | questions about advanced routing. |
| 25 | |
| 26 | Note that your box can only act as a router if you enable IP |
| 27 | forwarding in your kernel; you can do that by saying Y to "/proc |
| 28 | file system support" and "Sysctl support" below and executing the |
| 29 | line |
| 30 | |
| 31 | echo "1" > /proc/sys/net/ipv4/ip_forward |
| 32 | |
| 33 | at boot time after the /proc file system has been mounted. |
| 34 | |
Jesper Dangaard Brouer | b2cc46a | 2009-02-22 00:06:20 -0800 | [diff] [blame] | 35 | If you turn on IP forwarding, you should consider the rp_filter, which |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | automatically rejects incoming packets if the routing table entry |
| 37 | for their source address doesn't match the network interface they're |
| 38 | arriving on. This has security advantages because it prevents the |
| 39 | so-called IP spoofing, however it can pose problems if you use |
| 40 | asymmetric routing (packets from you to a host take a different path |
| 41 | than packets from that host to you) or if you operate a non-routing |
| 42 | host which has several IP addresses on different interfaces. To turn |
Dave Jones | d739437 | 2007-05-17 15:02:21 -0700 | [diff] [blame] | 43 | rp_filter on use: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | |
Dave Jones | d739437 | 2007-05-17 15:02:21 -0700 | [diff] [blame] | 45 | echo 1 > /proc/sys/net/ipv4/conf/<device>/rp_filter |
Nicolas Dichtel | 750e9fa | 2010-08-31 05:50:43 +0000 | [diff] [blame] | 46 | or |
Dave Jones | d739437 | 2007-05-17 15:02:21 -0700 | [diff] [blame] | 47 | echo 1 > /proc/sys/net/ipv4/conf/all/rp_filter |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | |
Jesper Dangaard Brouer | b2cc46a | 2009-02-22 00:06:20 -0800 | [diff] [blame] | 49 | Note that some distributions enable it in startup scripts. |
Jesper Dangaard Brouer | d18921a | 2009-02-23 04:40:43 +0000 | [diff] [blame] | 50 | For details about rp_filter strict and loose mode read |
| 51 | <file:Documentation/networking/ip-sysctl.txt>. |
Jesper Dangaard Brouer | b2cc46a | 2009-02-22 00:06:20 -0800 | [diff] [blame] | 52 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | If unsure, say N here. |
| 54 | |
Stephen Hemminger | 66a2f7f | 2008-01-12 21:23:17 -0800 | [diff] [blame] | 55 | config IP_FIB_TRIE_STATS |
| 56 | bool "FIB TRIE statistics" |
David S. Miller | 3630b7c | 2011-02-01 15:15:39 -0800 | [diff] [blame] | 57 | depends on IP_ADVANCED_ROUTER |
Stephen Hemminger | 66a2f7f | 2008-01-12 21:23:17 -0800 | [diff] [blame] | 58 | ---help--- |
| 59 | Keep track of statistics on structure of FIB TRIE table. |
| 60 | Useful for testing and measuring TRIE performance. |
| 61 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 62 | config IP_MULTIPLE_TABLES |
| 63 | bool "IP: policy routing" |
| 64 | depends on IP_ADVANCED_ROUTER |
Thomas Graf | e1ef4bf | 2006-08-04 03:39:22 -0700 | [diff] [blame] | 65 | select FIB_RULES |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | ---help--- |
| 67 | Normally, a router decides what to do with a received packet based |
| 68 | solely on the packet's final destination address. If you say Y here, |
| 69 | the Linux router will also be able to take the packet's source |
| 70 | address into account. Furthermore, the TOS (Type-Of-Service) field |
| 71 | of the packet can be used for routing decisions as well. |
| 72 | |
| 73 | If you are interested in this, please see the preliminary |
| 74 | documentation at <http://www.compendium.com.ar/policy-routing.txt> |
| 75 | and <ftp://post.tepkom.ru/pub/vol2/Linux/docs/advanced-routing.tex>. |
| 76 | You will need supporting software from |
| 77 | <ftp://ftp.tux.org/pub/net/ip-routing/>. |
| 78 | |
| 79 | If unsure, say N. |
| 80 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | config IP_ROUTE_MULTIPATH |
| 82 | bool "IP: equal cost multipath" |
| 83 | depends on IP_ADVANCED_ROUTER |
| 84 | help |
| 85 | Normally, the routing tables specify a single action to be taken in |
| 86 | a deterministic manner for a given packet. If you say Y here |
| 87 | however, it becomes possible to attach several actions to a packet |
| 88 | pattern, in effect specifying several alternative paths to travel |
| 89 | for those packets. The router considers all these paths to be of |
| 90 | equal "cost" and chooses one of them in a non-deterministic fashion |
| 91 | if a matching packet arrives. |
| 92 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 93 | config IP_ROUTE_VERBOSE |
| 94 | bool "IP: verbose route monitoring" |
| 95 | depends on IP_ADVANCED_ROUTER |
| 96 | help |
| 97 | If you say Y here, which is recommended, then the kernel will print |
| 98 | verbose messages regarding the routing, for example warnings about |
| 99 | received packets which look strange and could be evidence of an |
| 100 | attack or a misconfigured system somewhere. The information is |
| 101 | handled by the klogd daemon which is responsible for kernel messages |
| 102 | ("man klogd"). |
| 103 | |
Patrick McHardy | c7066f7 | 2011-01-14 13:36:42 +0100 | [diff] [blame] | 104 | config IP_ROUTE_CLASSID |
| 105 | bool |
| 106 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 107 | config IP_PNP |
| 108 | bool "IP: kernel level autoconfiguration" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 109 | help |
| 110 | This enables automatic configuration of IP addresses of devices and |
| 111 | of the routing table during kernel boot, based on either information |
| 112 | supplied on the kernel command line or by BOOTP or RARP protocols. |
| 113 | You need to say Y only for diskless machines requiring network |
| 114 | access to boot (in which case you want to say Y to "Root file system |
| 115 | on NFS" as well), because all other machines configure the network |
| 116 | in their startup scripts. |
| 117 | |
| 118 | config IP_PNP_DHCP |
| 119 | bool "IP: DHCP support" |
| 120 | depends on IP_PNP |
| 121 | ---help--- |
| 122 | If you want your Linux box to mount its whole root file system (the |
| 123 | one containing the directory /) from some other computer over the |
| 124 | net via NFS and you want the IP address of your computer to be |
| 125 | discovered automatically at boot time using the DHCP protocol (a |
| 126 | special protocol designed for doing this job), say Y here. In case |
| 127 | the boot ROM of your network card was designed for booting Linux and |
| 128 | does DHCP itself, providing all necessary information on the kernel |
| 129 | command line, you can say N here. |
| 130 | |
| 131 | If unsure, say Y. Note that if you want to use DHCP, a DHCP server |
| 132 | must be operating on your network. Read |
J. Bruce Fields | dc7a081 | 2009-10-27 14:41:35 -0400 | [diff] [blame] | 133 | <file:Documentation/filesystems/nfs/nfsroot.txt> for details. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 134 | |
| 135 | config IP_PNP_BOOTP |
| 136 | bool "IP: BOOTP support" |
| 137 | depends on IP_PNP |
| 138 | ---help--- |
| 139 | If you want your Linux box to mount its whole root file system (the |
| 140 | one containing the directory /) from some other computer over the |
| 141 | net via NFS and you want the IP address of your computer to be |
| 142 | discovered automatically at boot time using the BOOTP protocol (a |
| 143 | special protocol designed for doing this job), say Y here. In case |
| 144 | the boot ROM of your network card was designed for booting Linux and |
| 145 | does BOOTP itself, providing all necessary information on the kernel |
| 146 | command line, you can say N here. If unsure, say Y. Note that if you |
| 147 | want to use BOOTP, a BOOTP server must be operating on your network. |
J. Bruce Fields | dc7a081 | 2009-10-27 14:41:35 -0400 | [diff] [blame] | 148 | Read <file:Documentation/filesystems/nfs/nfsroot.txt> for details. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | |
| 150 | config IP_PNP_RARP |
| 151 | bool "IP: RARP support" |
| 152 | depends on IP_PNP |
| 153 | help |
| 154 | If you want your Linux box to mount its whole root file system (the |
| 155 | one containing the directory /) from some other computer over the |
| 156 | net via NFS and you want the IP address of your computer to be |
| 157 | discovered automatically at boot time using the RARP protocol (an |
| 158 | older protocol which is being obsoleted by BOOTP and DHCP), say Y |
| 159 | here. Note that if you want to use RARP, a RARP server must be |
J. Bruce Fields | 6ded55d | 2008-04-07 15:59:03 -0400 | [diff] [blame] | 160 | operating on your network. Read |
J. Bruce Fields | dc7a081 | 2009-10-27 14:41:35 -0400 | [diff] [blame] | 161 | <file:Documentation/filesystems/nfs/nfsroot.txt> for details. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 162 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | config NET_IPIP |
| 164 | tristate "IP: tunneling" |
Herbert Xu | d2acc34 | 2006-03-28 01:12:13 -0800 | [diff] [blame] | 165 | select INET_TUNNEL |
Pravin B Shelar | fd58156 | 2013-03-25 14:49:41 +0000 | [diff] [blame] | 166 | select NET_IP_TUNNEL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | ---help--- |
| 168 | Tunneling means encapsulating data of one protocol type within |
| 169 | another protocol and sending it over a channel that understands the |
| 170 | encapsulating protocol. This particular tunneling driver implements |
| 171 | encapsulation of IP within IP, which sounds kind of pointless, but |
| 172 | can be useful if you want to make your (or some other) machine |
| 173 | appear on a different network than it physically is, or to use |
| 174 | mobile-IP facilities (allowing laptops to seamlessly move between |
| 175 | networks without changing their IP addresses). |
| 176 | |
| 177 | Saying Y to this option will produce two modules ( = code which can |
| 178 | be inserted in and removed from the running kernel whenever you |
| 179 | want). Most people won't need this and can say N. |
| 180 | |
Dmitry Kozlov | 00959ad | 2010-08-21 23:05:39 -0700 | [diff] [blame] | 181 | config NET_IPGRE_DEMUX |
| 182 | tristate "IP: GRE demultiplexer" |
| 183 | help |
| 184 | This is helper module to demultiplex GRE packets on GRE version field criteria. |
| 185 | Required by ip_gre and pptp modules. |
| 186 | |
Pravin B Shelar | c544193 | 2013-03-25 14:49:35 +0000 | [diff] [blame] | 187 | config NET_IP_TUNNEL |
| 188 | tristate |
Paolo Abeni | e09acdd | 2016-02-12 15:43:55 +0100 | [diff] [blame] | 189 | select DST_CACHE |
Pravin B Shelar | c544193 | 2013-03-25 14:49:35 +0000 | [diff] [blame] | 190 | default n |
| 191 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | config NET_IPGRE |
| 193 | tristate "IP: GRE tunnels over IP" |
David S. Miller | 21a180c | 2010-10-04 11:56:38 -0700 | [diff] [blame] | 194 | depends on (IPV6 || IPV6=n) && NET_IPGRE_DEMUX |
Pravin B Shelar | c544193 | 2013-03-25 14:49:35 +0000 | [diff] [blame] | 195 | select NET_IP_TUNNEL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 196 | help |
| 197 | Tunneling means encapsulating data of one protocol type within |
| 198 | another protocol and sending it over a channel that understands the |
| 199 | encapsulating protocol. This particular tunneling driver implements |
| 200 | GRE (Generic Routing Encapsulation) and at this time allows |
| 201 | encapsulating of IPv4 or IPv6 over existing IPv4 infrastructure. |
| 202 | This driver is useful if the other endpoint is a Cisco router: Cisco |
| 203 | likes GRE much better than the other Linux tunneling driver ("IP |
| 204 | tunneling" above). In addition, GRE allows multicast redistribution |
| 205 | through the tunnel. |
| 206 | |
| 207 | config NET_IPGRE_BROADCAST |
| 208 | bool "IP: broadcast GRE over IP" |
| 209 | depends on IP_MULTICAST && NET_IPGRE |
| 210 | help |
| 211 | One application of GRE/IP is to construct a broadcast WAN (Wide Area |
| 212 | Network), which looks like a normal Ethernet LAN (Local Area |
| 213 | Network), but can be distributed all over the Internet. If you want |
| 214 | to do that, say Y here and to "IP multicast routing" below. |
| 215 | |
| 216 | config IP_MROUTE |
| 217 | bool "IP: multicast routing" |
| 218 | depends on IP_MULTICAST |
| 219 | help |
| 220 | This is used if you want your machine to act as a router for IP |
| 221 | packets that have several destination addresses. It is needed on the |
| 222 | MBONE, a high bandwidth network on top of the Internet which carries |
| 223 | audio and video broadcasts. In order to do that, you would most |
Jean Sacren | 4960c2c | 2013-06-01 16:23:17 +0000 | [diff] [blame] | 224 | likely run the program mrouted. If you haven't heard about it, you |
| 225 | don't need it. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 226 | |
Patrick McHardy | f0ad086 | 2010-04-13 05:03:23 +0000 | [diff] [blame] | 227 | config IP_MROUTE_MULTIPLE_TABLES |
| 228 | bool "IP: multicast policy routing" |
Patrick McHardy | 66496d4 | 2010-04-15 13:29:27 +0200 | [diff] [blame] | 229 | depends on IP_MROUTE && IP_ADVANCED_ROUTER |
Patrick McHardy | f0ad086 | 2010-04-13 05:03:23 +0000 | [diff] [blame] | 230 | select FIB_RULES |
| 231 | help |
| 232 | Normally, a multicast router runs a userspace daemon and decides |
| 233 | what to do with a multicast packet based on the source and |
| 234 | destination addresses. If you say Y here, the multicast router |
| 235 | will also be able to take interfaces and packet marks into |
| 236 | account and run multiple instances of userspace daemons |
| 237 | simultaneously, each one handling a single table. |
| 238 | |
| 239 | If unsure, say N. |
| 240 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 241 | config IP_PIMSM_V1 |
| 242 | bool "IP: PIM-SM version 1 support" |
| 243 | depends on IP_MROUTE |
| 244 | help |
| 245 | Kernel side support for Sparse Mode PIM (Protocol Independent |
| 246 | Multicast) version 1. This multicast routing protocol is used widely |
| 247 | because Cisco supports it. You need special software to use it |
| 248 | (pimd-v1). Please see <http://netweb.usc.edu/pim/> for more |
| 249 | information about PIM. |
| 250 | |
| 251 | Say Y if you want to use PIM-SM v1. Note that you can say N here if |
| 252 | you just want to use Dense Mode PIM. |
| 253 | |
| 254 | config IP_PIMSM_V2 |
| 255 | bool "IP: PIM-SM version 2 support" |
| 256 | depends on IP_MROUTE |
| 257 | help |
| 258 | Kernel side support for Sparse Mode PIM version 2. In order to use |
| 259 | this, you need an experimental routing daemon supporting it (pimd or |
| 260 | gated-5). This routing protocol is not used widely, so say N unless |
| 261 | you want to play with it. |
| 262 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | config SYN_COOKIES |
Florian Westphal | 57f1553 | 2010-06-03 00:42:30 +0000 | [diff] [blame] | 264 | bool "IP: TCP syncookie support" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 265 | ---help--- |
| 266 | Normal TCP/IP networking is open to an attack known as "SYN |
| 267 | flooding". This denial-of-service attack prevents legitimate remote |
| 268 | users from being able to connect to your computer during an ongoing |
| 269 | attack and requires very little work from the attacker, who can |
| 270 | operate from anywhere on the Internet. |
| 271 | |
| 272 | SYN cookies provide protection against this type of attack. If you |
| 273 | say Y here, the TCP/IP stack will use a cryptographic challenge |
| 274 | protocol known as "SYN cookies" to enable legitimate users to |
| 275 | continue to connect, even when your machine is under attack. There |
| 276 | is no need for the legitimate users to change their TCP/IP software; |
| 277 | SYN cookies work transparently to them. For technical information |
| 278 | about SYN cookies, check out <http://cr.yp.to/syncookies.html>. |
| 279 | |
| 280 | If you are SYN flooded, the source address reported by the kernel is |
| 281 | likely to have been forged by the attacker; it is only reported as |
| 282 | an aid in tracing the packets to their actual source and should not |
| 283 | be taken as absolute truth. |
| 284 | |
| 285 | SYN cookies may prevent correct error reporting on clients when the |
| 286 | server is really overloaded. If this happens frequently better turn |
| 287 | them off. |
| 288 | |
Florian Westphal | 57f1553 | 2010-06-03 00:42:30 +0000 | [diff] [blame] | 289 | If you say Y here, you can disable SYN cookies at run time by |
| 290 | saying Y to "/proc file system support" and |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 291 | "Sysctl support" below and executing the command |
| 292 | |
Florian Westphal | 57f1553 | 2010-06-03 00:42:30 +0000 | [diff] [blame] | 293 | echo 0 > /proc/sys/net/ipv4/tcp_syncookies |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 294 | |
Florian Westphal | 57f1553 | 2010-06-03 00:42:30 +0000 | [diff] [blame] | 295 | after the /proc file system has been mounted. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 296 | |
| 297 | If unsure, say N. |
| 298 | |
Saurabh | 1181412 | 2012-07-17 09:44:54 +0000 | [diff] [blame] | 299 | config NET_IPVTI |
| 300 | tristate "Virtual (secure) IP: tunneling" |
| 301 | select INET_TUNNEL |
Pravin B Shelar | f61dd38 | 2013-03-25 14:50:00 +0000 | [diff] [blame] | 302 | select NET_IP_TUNNEL |
Saurabh | 1181412 | 2012-07-17 09:44:54 +0000 | [diff] [blame] | 303 | depends on INET_XFRM_MODE_TUNNEL |
| 304 | ---help--- |
| 305 | Tunneling means encapsulating data of one protocol type within |
| 306 | another protocol and sending it over a channel that understands the |
| 307 | encapsulating protocol. This can be used with xfrm mode tunnel to give |
| 308 | the notion of a secure tunnel for IPSEC and then use routing protocol |
| 309 | on top. |
| 310 | |
Tom Herbert | 8024e02 | 2014-07-13 19:49:37 -0700 | [diff] [blame] | 311 | config NET_UDP_TUNNEL |
| 312 | tristate |
Andy Zhou | 7c5df8f | 2014-10-06 15:15:14 -0700 | [diff] [blame] | 313 | select NET_IP_TUNNEL |
Tom Herbert | 8024e02 | 2014-07-13 19:49:37 -0700 | [diff] [blame] | 314 | default n |
| 315 | |
Tom Herbert | 2346155 | 2014-09-17 12:25:56 -0700 | [diff] [blame] | 316 | config NET_FOU |
| 317 | tristate "IP: Foo (IP protocols) over UDP" |
| 318 | select XFRM |
| 319 | select NET_UDP_TUNNEL |
| 320 | ---help--- |
| 321 | Foo over UDP allows any IP protocol to be directly encapsulated |
| 322 | over UDP include tunnels (IPIP, GRE, SIT). By encapsulating in UDP |
| 323 | network mechanisms and optimizations for UDP (such as ECMP |
| 324 | and RSS) can be leveraged to provide better service. |
| 325 | |
Tom Herbert | 63487ba | 2014-11-04 09:06:51 -0800 | [diff] [blame] | 326 | config NET_FOU_IP_TUNNELS |
| 327 | bool "IP: FOU encapsulation of IP tunnels" |
| 328 | depends on NET_IPIP || NET_IPGRE || IPV6_SIT |
| 329 | select NET_FOU |
| 330 | ---help--- |
| 331 | Allow configuration of FOU or GUE encapsulation for IP tunnels. |
| 332 | When this option is enabled IP tunnels can be configured to use |
| 333 | FOU or GUE encapsulation. |
| 334 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 335 | config INET_AH |
| 336 | tristate "IP: AH transformation" |
Jan Beulich | 7e15252 | 2012-05-15 01:57:44 +0000 | [diff] [blame] | 337 | select XFRM_ALGO |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 338 | select CRYPTO |
| 339 | select CRYPTO_HMAC |
| 340 | select CRYPTO_MD5 |
| 341 | select CRYPTO_SHA1 |
| 342 | ---help--- |
| 343 | Support for IPsec AH. |
| 344 | |
| 345 | If unsure, say Y. |
| 346 | |
| 347 | config INET_ESP |
| 348 | tristate "IP: ESP transformation" |
Jan Beulich | 7e15252 | 2012-05-15 01:57:44 +0000 | [diff] [blame] | 349 | select XFRM_ALGO |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | select CRYPTO |
Herbert Xu | ed58dd4 | 2008-03-04 14:29:21 -0800 | [diff] [blame] | 351 | select CRYPTO_AUTHENC |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 352 | select CRYPTO_HMAC |
| 353 | select CRYPTO_MD5 |
Herbert Xu | 6b7326c | 2006-07-30 15:41:01 +1000 | [diff] [blame] | 354 | select CRYPTO_CBC |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 355 | select CRYPTO_SHA1 |
| 356 | select CRYPTO_DES |
Thomas Egerer | 32b6170 | 2016-01-25 12:58:44 +0100 | [diff] [blame] | 357 | select CRYPTO_ECHAINIV |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 358 | ---help--- |
| 359 | Support for IPsec ESP. |
| 360 | |
| 361 | If unsure, say Y. |
| 362 | |
| 363 | config INET_IPCOMP |
| 364 | tristate "IP: IPComp transformation" |
Herbert Xu | d2acc34 | 2006-03-28 01:12:13 -0800 | [diff] [blame] | 365 | select INET_XFRM_TUNNEL |
Herbert Xu | 6fccab6 | 2008-07-25 02:54:40 -0700 | [diff] [blame] | 366 | select XFRM_IPCOMP |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | ---help--- |
| 368 | Support for IP Payload Compression Protocol (IPComp) (RFC3173), |
| 369 | typically needed for IPsec. |
Jesper Dangaard Brouer | a6e8f27 | 2009-02-22 00:07:13 -0800 | [diff] [blame] | 370 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 371 | If unsure, say Y. |
| 372 | |
Herbert Xu | d2acc34 | 2006-03-28 01:12:13 -0800 | [diff] [blame] | 373 | config INET_XFRM_TUNNEL |
| 374 | tristate |
| 375 | select INET_TUNNEL |
| 376 | default n |
| 377 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 378 | config INET_TUNNEL |
Herbert Xu | d2acc34 | 2006-03-28 01:12:13 -0800 | [diff] [blame] | 379 | tristate |
| 380 | default n |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 381 | |
Herbert Xu | b59f45d | 2006-05-27 23:05:54 -0700 | [diff] [blame] | 382 | config INET_XFRM_MODE_TRANSPORT |
| 383 | tristate "IP: IPsec transport mode" |
| 384 | default y |
| 385 | select XFRM |
| 386 | ---help--- |
| 387 | Support for IPsec transport mode. |
| 388 | |
| 389 | If unsure, say Y. |
| 390 | |
| 391 | config INET_XFRM_MODE_TUNNEL |
| 392 | tristate "IP: IPsec tunnel mode" |
| 393 | default y |
| 394 | select XFRM |
| 395 | ---help--- |
| 396 | Support for IPsec tunnel mode. |
| 397 | |
| 398 | If unsure, say Y. |
| 399 | |
Diego Beltrami | 0a69452 | 2006-10-03 23:47:05 -0700 | [diff] [blame] | 400 | config INET_XFRM_MODE_BEET |
| 401 | tristate "IP: IPsec BEET mode" |
| 402 | default y |
| 403 | select XFRM |
| 404 | ---help--- |
| 405 | Support for IPsec BEET mode. |
| 406 | |
| 407 | If unsure, say Y. |
| 408 | |
Arnaldo Carvalho de Melo | 17b085e | 2005-08-12 12:59:17 -0300 | [diff] [blame] | 409 | config INET_DIAG |
| 410 | tristate "INET: socket monitoring interface" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | default y |
| 412 | ---help--- |
Arnaldo Carvalho de Melo | 73c1f4a | 2005-08-12 12:51:49 -0300 | [diff] [blame] | 413 | Support for INET (TCP, DCCP, etc) socket monitoring interface used by |
| 414 | native Linux tools such as ss. ss is included in iproute2, currently |
Michael Witten | c996d8b | 2010-11-15 19:55:34 +0000 | [diff] [blame] | 415 | downloadable at: |
| 416 | |
| 417 | http://www.linuxfoundation.org/collaborate/workgroups/networking/iproute2 |
Jesper Dangaard Brouer | a6e8f27 | 2009-02-22 00:07:13 -0800 | [diff] [blame] | 418 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 419 | If unsure, say Y. |
| 420 | |
Arnaldo Carvalho de Melo | 17b085e | 2005-08-12 12:59:17 -0300 | [diff] [blame] | 421 | config INET_TCP_DIAG |
| 422 | depends on INET_DIAG |
| 423 | def_tristate INET_DIAG |
| 424 | |
Pavel Emelyanov | 507dd79 | 2011-12-09 06:24:36 +0000 | [diff] [blame] | 425 | config INET_UDP_DIAG |
David S. Miller | 6d62a66 | 2012-01-07 12:13:06 -0800 | [diff] [blame] | 426 | tristate "UDP: socket monitoring interface" |
Anisse Astier | 6d25886 | 2012-02-07 07:39:11 +0000 | [diff] [blame] | 427 | depends on INET_DIAG && (IPV6 || IPV6=n) |
David S. Miller | 6d62a66 | 2012-01-07 12:13:06 -0800 | [diff] [blame] | 428 | default n |
| 429 | ---help--- |
| 430 | Support for UDP socket monitoring interface used by the ss tool. |
| 431 | If unsure, say Y. |
Pavel Emelyanov | 507dd79 | 2011-12-09 06:24:36 +0000 | [diff] [blame] | 432 | |
Lorenzo Colitti | c1e64e2 | 2015-12-16 12:30:05 +0900 | [diff] [blame] | 433 | config INET_DIAG_DESTROY |
| 434 | bool "INET: allow privileged process to administratively close sockets" |
| 435 | depends on INET_DIAG |
| 436 | default n |
| 437 | ---help--- |
| 438 | Provides a SOCK_DESTROY operation that allows privileged processes |
| 439 | (e.g., a connection manager or a network administration tool such as |
| 440 | ss) to close sockets opened by other processes. Closing a socket in |
| 441 | this way interrupts any blocking read/write/connect operations on |
| 442 | the socket and causes future socket calls to behave as if the socket |
| 443 | had been disconnected. |
| 444 | If unsure, say N. |
| 445 | |
Stephen Hemminger | 3d2573f | 2006-09-24 20:11:58 -0700 | [diff] [blame] | 446 | menuconfig TCP_CONG_ADVANCED |
David S. Miller | a648404 | 2005-06-24 18:07:51 -0700 | [diff] [blame] | 447 | bool "TCP: advanced congestion control" |
David S. Miller | a648404 | 2005-06-24 18:07:51 -0700 | [diff] [blame] | 448 | ---help--- |
| 449 | Support for selection of various TCP congestion control |
| 450 | modules. |
| 451 | |
| 452 | Nearly all users can safely say no here, and a safe default |
Stephen Hemminger | 597811e | 2006-09-24 20:13:03 -0700 | [diff] [blame] | 453 | selection will be made (CUBIC with new Reno as a fallback). |
David S. Miller | a648404 | 2005-06-24 18:07:51 -0700 | [diff] [blame] | 454 | |
| 455 | If unsure, say N. |
| 456 | |
Stephen Hemminger | 3d2573f | 2006-09-24 20:11:58 -0700 | [diff] [blame] | 457 | if TCP_CONG_ADVANCED |
Stephen Hemminger | 8380303 | 2005-06-23 12:23:25 -0700 | [diff] [blame] | 458 | |
| 459 | config TCP_CONG_BIC |
| 460 | tristate "Binary Increase Congestion (BIC) control" |
Stephen Hemminger | 597811e | 2006-09-24 20:13:03 -0700 | [diff] [blame] | 461 | default m |
Stephen Hemminger | 8380303 | 2005-06-23 12:23:25 -0700 | [diff] [blame] | 462 | ---help--- |
| 463 | BIC-TCP is a sender-side only change that ensures a linear RTT |
| 464 | fairness under large windows while offering both scalability and |
| 465 | bounded TCP-friendliness. The protocol combines two schemes |
| 466 | called additive increase and binary search increase. When the |
| 467 | congestion window is large, additive increase with a large |
| 468 | increment ensures linear RTT fairness as well as good |
| 469 | scalability. Under small congestion windows, binary search |
| 470 | increase provides TCP friendliness. |
| 471 | See http://www.csc.ncsu.edu/faculty/rhee/export/bitcp/ |
| 472 | |
Stephen Hemminger | df3271f | 2005-12-13 23:13:28 -0800 | [diff] [blame] | 473 | config TCP_CONG_CUBIC |
| 474 | tristate "CUBIC TCP" |
Stephen Hemminger | 597811e | 2006-09-24 20:13:03 -0700 | [diff] [blame] | 475 | default y |
Stephen Hemminger | df3271f | 2005-12-13 23:13:28 -0800 | [diff] [blame] | 476 | ---help--- |
| 477 | This is version 2.0 of BIC-TCP which uses a cubic growth function |
| 478 | among other techniques. |
| 479 | See http://www.csc.ncsu.edu/faculty/rhee/export/bitcp/cubic-paper.pdf |
| 480 | |
Stephen Hemminger | 8727076 | 2005-06-23 12:24:09 -0700 | [diff] [blame] | 481 | config TCP_CONG_WESTWOOD |
| 482 | tristate "TCP Westwood+" |
Stephen Hemminger | 8727076 | 2005-06-23 12:24:09 -0700 | [diff] [blame] | 483 | default m |
| 484 | ---help--- |
| 485 | TCP Westwood+ is a sender-side only modification of the TCP Reno |
| 486 | protocol stack that optimizes the performance of TCP congestion |
| 487 | control. It is based on end-to-end bandwidth estimation to set |
| 488 | congestion window and slow start threshold after a congestion |
| 489 | episode. Using this estimation, TCP Westwood+ adaptively sets a |
| 490 | slow start threshold and a congestion window which takes into |
| 491 | account the bandwidth used at the time congestion is experienced. |
| 492 | TCP Westwood+ significantly increases fairness wrt TCP Reno in |
| 493 | wired networks and throughput over wireless links. |
| 494 | |
Baruch Even | a7868ea | 2005-06-23 12:28:11 -0700 | [diff] [blame] | 495 | config TCP_CONG_HTCP |
| 496 | tristate "H-TCP" |
Baruch Even | a7868ea | 2005-06-23 12:28:11 -0700 | [diff] [blame] | 497 | default m |
| 498 | ---help--- |
| 499 | H-TCP is a send-side only modifications of the TCP Reno |
| 500 | protocol stack that optimizes the performance of TCP |
| 501 | congestion control for high speed network links. It uses a |
| 502 | modeswitch to change the alpha and beta parameters of TCP Reno |
| 503 | based on network conditions and in a way so as to be fair with |
| 504 | other Reno and H-TCP flows. |
| 505 | |
John Heffner | a628d29 | 2005-06-23 12:24:58 -0700 | [diff] [blame] | 506 | config TCP_CONG_HSTCP |
| 507 | tristate "High Speed TCP" |
John Heffner | a628d29 | 2005-06-23 12:24:58 -0700 | [diff] [blame] | 508 | default n |
| 509 | ---help--- |
| 510 | Sally Floyd's High Speed TCP (RFC 3649) congestion control. |
| 511 | A modification to TCP's congestion control mechanism for use |
| 512 | with large congestion windows. A table indicates how much to |
| 513 | increase the congestion window by when an ACK is received. |
| 514 | For more detail see http://www.icir.org/floyd/hstcp.html |
| 515 | |
Daniele Lacamera | 835b3f0 | 2005-06-23 12:26:34 -0700 | [diff] [blame] | 516 | config TCP_CONG_HYBLA |
| 517 | tristate "TCP-Hybla congestion control algorithm" |
Daniele Lacamera | 835b3f0 | 2005-06-23 12:26:34 -0700 | [diff] [blame] | 518 | default n |
| 519 | ---help--- |
| 520 | TCP-Hybla is a sender-side only change that eliminates penalization of |
| 521 | long-RTT, large-bandwidth connections, like when satellite legs are |
Matt LaPlante | 44c0920 | 2006-10-03 22:34:14 +0200 | [diff] [blame] | 522 | involved, especially when sharing a common bottleneck with normal |
Daniele Lacamera | 835b3f0 | 2005-06-23 12:26:34 -0700 | [diff] [blame] | 523 | terrestrial connections. |
| 524 | |
Stephen Hemminger | b87d856 | 2005-06-23 12:27:19 -0700 | [diff] [blame] | 525 | config TCP_CONG_VEGAS |
| 526 | tristate "TCP Vegas" |
Stephen Hemminger | b87d856 | 2005-06-23 12:27:19 -0700 | [diff] [blame] | 527 | default n |
| 528 | ---help--- |
| 529 | TCP Vegas is a sender-side only change to TCP that anticipates |
| 530 | the onset of congestion by estimating the bandwidth. TCP Vegas |
| 531 | adjusts the sending rate by modifying the congestion |
| 532 | window. TCP Vegas should provide less packet loss, but it is |
| 533 | not as aggressive as TCP Reno. |
| 534 | |
Lawrence Brakmo | 699fafa | 2016-06-08 21:16:45 -0700 | [diff] [blame] | 535 | config TCP_CONG_NV |
| 536 | tristate "TCP NV" |
| 537 | default n |
| 538 | ---help--- |
| 539 | TCP NV is a follow up to TCP Vegas. It has been modified to deal with |
| 540 | 10G networks, measurement noise introduced by LRO, GRO and interrupt |
| 541 | coalescence. In addition, it will decrease its cwnd multiplicatively |
| 542 | instead of linearly. |
| 543 | |
| 544 | Note that in general congestion avoidance (cwnd decreased when # packets |
| 545 | queued grows) cannot coexist with congestion control (cwnd decreased only |
| 546 | when there is packet loss) due to fairness issues. One scenario when they |
| 547 | can coexist safely is when the CA flows have RTTs << CC flows RTTs. |
| 548 | |
| 549 | For further details see http://www.brakmo.org/networking/tcp-nv/ |
| 550 | |
John Heffner | 0e57976 | 2005-06-23 12:29:07 -0700 | [diff] [blame] | 551 | config TCP_CONG_SCALABLE |
| 552 | tristate "Scalable TCP" |
John Heffner | 0e57976 | 2005-06-23 12:29:07 -0700 | [diff] [blame] | 553 | default n |
| 554 | ---help--- |
| 555 | Scalable TCP is a sender-side only change to TCP which uses a |
| 556 | MIMD congestion control algorithm which has some nice scaling |
| 557 | properties, though is known to have fairness issues. |
Baruch Even | f4b9479 | 2007-02-21 19:32:37 -0800 | [diff] [blame] | 558 | See http://www.deneholme.net/tom/scalable/ |
Baruch Even | a7868ea | 2005-06-23 12:28:11 -0700 | [diff] [blame] | 559 | |
Wong Hoi Sing Edison | 7c106d7 | 2006-06-05 17:27:58 -0700 | [diff] [blame] | 560 | config TCP_CONG_LP |
| 561 | tristate "TCP Low Priority" |
Wong Hoi Sing Edison | 7c106d7 | 2006-06-05 17:27:58 -0700 | [diff] [blame] | 562 | default n |
| 563 | ---help--- |
| 564 | TCP Low Priority (TCP-LP), a distributed algorithm whose goal is |
Matt LaPlante | cab0089 | 2006-10-03 22:36:44 +0200 | [diff] [blame] | 565 | to utilize only the excess network bandwidth as compared to the |
Wong Hoi Sing Edison | 7c106d7 | 2006-06-05 17:27:58 -0700 | [diff] [blame] | 566 | ``fair share`` of bandwidth as targeted by TCP. |
| 567 | See http://www-ece.rice.edu/networks/TCP-LP/ |
| 568 | |
Bin Zhou | 76f1017 | 2006-06-05 17:28:30 -0700 | [diff] [blame] | 569 | config TCP_CONG_VENO |
| 570 | tristate "TCP Veno" |
Bin Zhou | 76f1017 | 2006-06-05 17:28:30 -0700 | [diff] [blame] | 571 | default n |
| 572 | ---help--- |
| 573 | TCP Veno is a sender-side only enhancement of TCP to obtain better |
| 574 | throughput over wireless networks. TCP Veno makes use of state |
| 575 | distinguishing to circumvent the difficult judgment of the packet loss |
| 576 | type. TCP Veno cuts down less congestion window in response to random |
| 577 | loss packets. |
Justin P. Mattock | 631dd1a | 2010-10-18 11:03:14 +0200 | [diff] [blame] | 578 | See <http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=1177186> |
Bin Zhou | 76f1017 | 2006-06-05 17:28:30 -0700 | [diff] [blame] | 579 | |
Angelo P. Castellani | 5ef8147 | 2007-02-22 00:23:05 -0800 | [diff] [blame] | 580 | config TCP_CONG_YEAH |
| 581 | tristate "YeAH TCP" |
David S. Miller | 2ff011e | 2007-05-17 00:07:47 -0700 | [diff] [blame] | 582 | select TCP_CONG_VEGAS |
Angelo P. Castellani | 5ef8147 | 2007-02-22 00:23:05 -0800 | [diff] [blame] | 583 | default n |
| 584 | ---help--- |
| 585 | YeAH-TCP is a sender-side high-speed enabled TCP congestion control |
| 586 | algorithm, which uses a mixed loss/delay approach to compute the |
| 587 | congestion window. It's design goals target high efficiency, |
| 588 | internal, RTT and Reno fairness, resilience to link loss while |
| 589 | keeping network elements load as low as possible. |
| 590 | |
| 591 | For further details look here: |
| 592 | http://wil.cs.caltech.edu/pfldnet2007/paper/YeAH_TCP.pdf |
| 593 | |
Stephen Hemminger | c462238 | 2007-04-20 17:07:51 -0700 | [diff] [blame] | 594 | config TCP_CONG_ILLINOIS |
| 595 | tristate "TCP Illinois" |
Stephen Hemminger | c462238 | 2007-04-20 17:07:51 -0700 | [diff] [blame] | 596 | default n |
| 597 | ---help--- |
Matt LaPlante | 01dd2fb | 2007-10-20 01:34:40 +0200 | [diff] [blame] | 598 | TCP-Illinois is a sender-side modification of TCP Reno for |
Stephen Hemminger | c462238 | 2007-04-20 17:07:51 -0700 | [diff] [blame] | 599 | high speed long delay links. It uses round-trip-time to |
| 600 | adjust the alpha and beta parameters to achieve a higher average |
| 601 | throughput and maintain fairness. |
| 602 | |
| 603 | For further details see: |
| 604 | http://www.ews.uiuc.edu/~shaoliu/tcpillinois/index.html |
| 605 | |
Daniel Borkmann | e3118e8 | 2014-09-26 22:37:36 +0200 | [diff] [blame] | 606 | config TCP_CONG_DCTCP |
| 607 | tristate "DataCenter TCP (DCTCP)" |
| 608 | default n |
| 609 | ---help--- |
| 610 | DCTCP leverages Explicit Congestion Notification (ECN) in the network to |
| 611 | provide multi-bit feedback to the end hosts. It is designed to provide: |
| 612 | |
| 613 | - High burst tolerance (incast due to partition/aggregate), |
| 614 | - Low latency (short flows, queries), |
| 615 | - High throughput (continuous data updates, large file transfers) with |
| 616 | commodity, shallow-buffered switches. |
| 617 | |
| 618 | All switches in the data center network running DCTCP must support |
| 619 | ECN marking and be configured for marking when reaching defined switch |
| 620 | buffer thresholds. The default ECN marking threshold heuristic for |
| 621 | DCTCP on switches is 20 packets (30KB) at 1Gbps, and 65 packets |
| 622 | (~100KB) at 10Gbps, but might need further careful tweaking. |
| 623 | |
| 624 | For further details see: |
| 625 | http://simula.stanford.edu/~alizade/Site/DCTCP_files/dctcp-final.pdf |
| 626 | |
Kenneth Klette Jonassen | 2b0a8c9 | 2015-06-10 19:08:17 +0200 | [diff] [blame] | 627 | config TCP_CONG_CDG |
| 628 | tristate "CAIA Delay-Gradient (CDG)" |
| 629 | default n |
| 630 | ---help--- |
| 631 | CAIA Delay-Gradient (CDG) is a TCP congestion control that modifies |
| 632 | the TCP sender in order to: |
| 633 | |
| 634 | o Use the delay gradient as a congestion signal. |
| 635 | o Back off with an average probability that is independent of the RTT. |
| 636 | o Coexist with flows that use loss-based congestion control. |
| 637 | o Tolerate packet loss unrelated to congestion. |
| 638 | |
| 639 | For further details see: |
| 640 | D.A. Hayes and G. Armitage. "Revisiting TCP congestion control using |
| 641 | delay gradients." In Networking 2011. Preprint: http://goo.gl/No3vdg |
| 642 | |
Stephen Hemminger | 3d2573f | 2006-09-24 20:11:58 -0700 | [diff] [blame] | 643 | choice |
| 644 | prompt "Default TCP congestion control" |
Stephen Hemminger | 597811e | 2006-09-24 20:13:03 -0700 | [diff] [blame] | 645 | default DEFAULT_CUBIC |
Stephen Hemminger | 3d2573f | 2006-09-24 20:11:58 -0700 | [diff] [blame] | 646 | help |
| 647 | Select the TCP congestion control that will be used by default |
| 648 | for all connections. |
| 649 | |
| 650 | config DEFAULT_BIC |
| 651 | bool "Bic" if TCP_CONG_BIC=y |
| 652 | |
| 653 | config DEFAULT_CUBIC |
| 654 | bool "Cubic" if TCP_CONG_CUBIC=y |
| 655 | |
| 656 | config DEFAULT_HTCP |
| 657 | bool "Htcp" if TCP_CONG_HTCP=y |
| 658 | |
Jan Engelhardt | dd2acaa | 2010-03-11 09:57:27 +0000 | [diff] [blame] | 659 | config DEFAULT_HYBLA |
| 660 | bool "Hybla" if TCP_CONG_HYBLA=y |
| 661 | |
Stephen Hemminger | 3d2573f | 2006-09-24 20:11:58 -0700 | [diff] [blame] | 662 | config DEFAULT_VEGAS |
| 663 | bool "Vegas" if TCP_CONG_VEGAS=y |
| 664 | |
Jan Engelhardt | 6ce1a6d | 2010-03-11 09:57:28 +0000 | [diff] [blame] | 665 | config DEFAULT_VENO |
| 666 | bool "Veno" if TCP_CONG_VENO=y |
| 667 | |
Stephen Hemminger | 3d2573f | 2006-09-24 20:11:58 -0700 | [diff] [blame] | 668 | config DEFAULT_WESTWOOD |
| 669 | bool "Westwood" if TCP_CONG_WESTWOOD=y |
| 670 | |
Daniel Borkmann | e3118e8 | 2014-09-26 22:37:36 +0200 | [diff] [blame] | 671 | config DEFAULT_DCTCP |
| 672 | bool "DCTCP" if TCP_CONG_DCTCP=y |
| 673 | |
Kenneth Klette Jonassen | 2b0a8c9 | 2015-06-10 19:08:17 +0200 | [diff] [blame] | 674 | config DEFAULT_CDG |
| 675 | bool "CDG" if TCP_CONG_CDG=y |
| 676 | |
Stephen Hemminger | 3d2573f | 2006-09-24 20:11:58 -0700 | [diff] [blame] | 677 | config DEFAULT_RENO |
| 678 | bool "Reno" |
Stephen Hemminger | 3d2573f | 2006-09-24 20:11:58 -0700 | [diff] [blame] | 679 | endchoice |
| 680 | |
| 681 | endif |
Stephen Hemminger | 8380303 | 2005-06-23 12:23:25 -0700 | [diff] [blame] | 682 | |
Stephen Hemminger | 597811e | 2006-09-24 20:13:03 -0700 | [diff] [blame] | 683 | config TCP_CONG_CUBIC |
David S. Miller | 6c36076 | 2005-06-26 15:20:20 -0700 | [diff] [blame] | 684 | tristate |
David S. Miller | a648404 | 2005-06-24 18:07:51 -0700 | [diff] [blame] | 685 | depends on !TCP_CONG_ADVANCED |
| 686 | default y |
| 687 | |
Stephen Hemminger | 3d2573f | 2006-09-24 20:11:58 -0700 | [diff] [blame] | 688 | config DEFAULT_TCP_CONG |
| 689 | string |
| 690 | default "bic" if DEFAULT_BIC |
| 691 | default "cubic" if DEFAULT_CUBIC |
| 692 | default "htcp" if DEFAULT_HTCP |
Jan Engelhardt | dd2acaa | 2010-03-11 09:57:27 +0000 | [diff] [blame] | 693 | default "hybla" if DEFAULT_HYBLA |
Stephen Hemminger | 3d2573f | 2006-09-24 20:11:58 -0700 | [diff] [blame] | 694 | default "vegas" if DEFAULT_VEGAS |
| 695 | default "westwood" if DEFAULT_WESTWOOD |
Jan Engelhardt | 6ce1a6d | 2010-03-11 09:57:28 +0000 | [diff] [blame] | 696 | default "veno" if DEFAULT_VENO |
Stephen Hemminger | 3d2573f | 2006-09-24 20:11:58 -0700 | [diff] [blame] | 697 | default "reno" if DEFAULT_RENO |
Daniel Borkmann | e3118e8 | 2014-09-26 22:37:36 +0200 | [diff] [blame] | 698 | default "dctcp" if DEFAULT_DCTCP |
Kenneth Klette Jonassen | 2b0a8c9 | 2015-06-10 19:08:17 +0200 | [diff] [blame] | 699 | default "cdg" if DEFAULT_CDG |
Stephen Hemminger | 597811e | 2006-09-24 20:13:03 -0700 | [diff] [blame] | 700 | default "cubic" |
Stephen Hemminger | 3d2573f | 2006-09-24 20:11:58 -0700 | [diff] [blame] | 701 | |
YOSHIFUJI Hideaki | cfb6eeb | 2006-11-14 19:07:45 -0800 | [diff] [blame] | 702 | config TCP_MD5SIG |
Kees Cook | 44fbe92 | 2012-10-02 11:19:48 -0700 | [diff] [blame] | 703 | bool "TCP: MD5 Signature Option support (RFC2385)" |
YOSHIFUJI Hideaki | cfb6eeb | 2006-11-14 19:07:45 -0800 | [diff] [blame] | 704 | select CRYPTO |
| 705 | select CRYPTO_MD5 |
| 706 | ---help--- |
David Sterba | 3dde6ad | 2007-05-09 07:12:20 +0200 | [diff] [blame] | 707 | RFC2385 specifies a method of giving MD5 protection to TCP sessions. |
YOSHIFUJI Hideaki | cfb6eeb | 2006-11-14 19:07:45 -0800 | [diff] [blame] | 708 | Its main (only?) use is to protect BGP sessions between core routers |
| 709 | on the Internet. |
| 710 | |
| 711 | If unsure, say N. |