1 # SPDX-License-Identifier: GPL-2.0-only
3 # Network device configuration
9 bool "Network device support"
11 You can say N here if you don't intend to connect your Linux box to
12 any other computer at all.
14 You'll have to say Y if your computer contains a network card that
15 you want to use under Linux. If you are going to run SLIP or PPP over
16 telephone line or null modem cable you need say Y here. Connecting
17 two machines with parallel ports using PLIP needs this, as well as
18 AX.25/KISS for sending Internet traffic over amateur radio links.
20 See also "The Linux Network Administrator's Guide" by Olaf Kirch and
21 Terry Dawson. Available at <http://www.tldp.org/guides.html>.
25 # All the following symbols are dependent on NETDEVICES - do not repeat
26 # that for each of the symbols.
34 bool "Network core driver support"
36 You can say N here if you do not intend to use any of the
37 networking core drivers (i.e. VLAN, bridging, bonding, etc.)
42 tristate "Bonding driver support"
44 depends on IPV6 || IPV6=n
46 Say 'Y' or 'M' if you wish to be able to 'bond' multiple Ethernet
47 Channels together. This is called 'Etherchannel' by Cisco,
48 'Trunking' by Sun, 802.3ad by the IEEE, and 'Bonding' in Linux.
50 The driver supports multiple bonding modes to allow for both high
51 performance and high availability operation.
53 Refer to <file:Documentation/networking/bonding.txt> for more
56 To compile this driver as a module, choose M here: the module
57 will be called bonding.
60 tristate "Dummy net driver support"
62 This is essentially a bit-bucket device (i.e. traffic you send to
63 this device is consigned into oblivion) with a configurable IP
64 address. It is most commonly used in order to make your currently
65 inactive SLIP address seem like a real address for local programs.
66 If you use SLIP or PPP, you might want to say Y here. It won't
67 enlarge your kernel. What a deal. Read about it in the Network
68 Administrator's Guide, available from
69 <http://www.tldp.org/docs.html#guide>.
71 To compile this driver as a module, choose M here: the module
75 tristate "WireGuard secure network tunnel"
76 depends on NET && INET
77 depends on IPV6 || !IPV6
81 select CRYPTO_LIB_CURVE25519
82 select CRYPTO_LIB_CHACHA20POLY1305
83 select CRYPTO_LIB_BLAKE2S
84 select CRYPTO_CHACHA20_X86_64 if X86 && 64BIT
85 select CRYPTO_POLY1305_X86_64 if X86 && 64BIT
86 select CRYPTO_BLAKE2S_X86 if X86 && 64BIT
87 select CRYPTO_CURVE25519_X86 if X86 && 64BIT
88 select ARM_CRYPTO if ARM
89 select ARM64_CRYPTO if ARM64
90 select CRYPTO_CHACHA20_NEON if (ARM || ARM64) && KERNEL_MODE_NEON
91 select CRYPTO_POLY1305_NEON if ARM64 && KERNEL_MODE_NEON
92 select CRYPTO_POLY1305_ARM if ARM
93 select CRYPTO_CURVE25519_NEON if ARM && KERNEL_MODE_NEON
94 select CRYPTO_CHACHA_MIPS if CPU_MIPS32_R2
95 select CRYPTO_POLY1305_MIPS if CPU_MIPS32 || (CPU_MIPS64 && 64BIT)
97 WireGuard is a secure, fast, and easy to use replacement for IPSec
98 that uses modern cryptography and clever networking tricks. It's
99 designed to be fairly general purpose and abstract enough to fit most
100 use cases, while at the same time remaining extremely simple to
101 configure. See www.wireguard.com for more info.
103 It's safe to say Y or M here, as the driver is very lightweight and
104 is only in use when an administrator chooses to add an interface.
106 config WIREGUARD_DEBUG
107 bool "Debugging checks and verbose messages"
110 This will write log messages for handshake and other events
111 that occur for a WireGuard interface. It will also perform some
112 extra validation checks and unit tests at various points. This is
113 only useful for debugging.
115 Say N here unless you know what you're doing.
118 tristate "EQL (serial line load balancing) support"
120 If you have two serial connections to some other computer (this
121 usually requires two modems and two telephone lines) and you use
122 SLIP (the protocol for sending Internet traffic over telephone
123 lines) or PPP (a better SLIP) on them, you can make them behave like
124 one double speed connection using this driver. Naturally, this has
125 to be supported at the other end as well, either with a similar EQL
126 Linux driver or with a Livingston Portmaster 2e.
128 Say Y if you want this and read
129 <file:Documentation/networking/eql.txt>. You may also want to read
130 section 6.2 of the NET-3-HOWTO, available from
131 <http://www.tldp.org/docs.html#howto>.
133 To compile this driver as a module, choose M here: the module
134 will be called eql. If unsure, say N.
137 bool "Fibre Channel driver support"
138 depends on SCSI && PCI
140 Fibre Channel is a high speed serial protocol mainly used to connect
141 large storage devices to the computer; it is compatible with and
142 intended to replace SCSI.
144 If you intend to use Fibre Channel, you need to have a Fibre channel
145 adaptor card in your computer; say Y here and to the driver for your
146 adaptor below. You also should have said Y to "SCSI support" and
147 "SCSI generic support".
150 tristate "Intermediate Functional Block support"
151 depends on NET_CLS_ACT
153 This is an intermediate driver that allows sharing of
155 To compile this driver as a module, choose M here: the module
156 will be called ifb. If you want to use more than one ifb
157 device at a time, you need to compile this driver as a module.
158 Instead of 'ifb', the devices will then be called 'ifb0',
160 Look at the iproute2 documentation directory for usage etc
162 source "drivers/net/team/Kconfig"
165 tristate "MAC-VLAN support"
167 This allows one to create virtual interfaces that map packets to
168 or from specific MAC addresses to a particular interface.
170 Macvlan devices can be added using the "ip" command from the
171 iproute2 package starting with the iproute2-2.6.23 release:
173 "ip link add link <real dev> [ address MAC ] [ NAME ] type macvlan"
175 To compile this driver as a module, choose M here: the module
176 will be called macvlan.
179 tristate "MAC-VLAN based tap driver"
184 This adds a specialized tap character device driver that is based
185 on the MAC-VLAN network interface, called macvtap. A macvtap device
186 can be added in the same way as a macvlan device, using 'type
187 macvtap', and then be accessed through the tap user space interface.
189 To compile this driver as a module, choose M here: the module
190 will be called macvtap.
196 select NET_L3_MASTER_DEV
199 tristate "IP-VLAN support"
201 depends on IPV6 || !IPV6
203 This allows one to create virtual devices off of a main interface
204 and packets will be delivered based on the dest L3 (IPv6/IPv4 addr)
205 on packets. All interfaces (including the main interface) share L2
206 making it transparent to the connected L2 switch.
208 Ipvlan devices can be added using the "ip" command from the
209 iproute2 package starting with the iproute2-3.19 release:
211 "ip link add link <main-dev> [ NAME ] type ipvlan"
213 To compile this driver as a module, choose M here: the module
214 will be called ipvlan.
217 tristate "IP-VLAN based tap driver"
222 This adds a specialized tap character device driver that is based
223 on the IP-VLAN network interface, called ipvtap. An ipvtap device
224 can be added in the same way as a ipvlan device, using 'type
225 ipvtap', and then be accessed through the tap user space interface.
227 To compile this driver as a module, choose M here: the module
228 will be called ipvtap.
231 tristate "Virtual eXtensible Local Area Network (VXLAN)"
233 select NET_UDP_TUNNEL
236 This allows one to create vxlan virtual interfaces that provide
237 Layer 2 Networks over Layer 3 Networks. VXLAN is often used
238 to tunnel virtual network infrastructure in virtualized environments.
239 For more information see:
240 http://tools.ietf.org/html/draft-mahalingam-dutt-dcops-vxlan-02
242 To compile this driver as a module, choose M here: the module
243 will be called vxlan.
246 tristate "Generic Network Virtualization Encapsulation"
248 depends on IPV6 || !IPV6
249 select NET_UDP_TUNNEL
252 This allows one to create geneve virtual interfaces that provide
253 Layer 2 Networks over Layer 3 Networks. GENEVE is often used
254 to tunnel virtual network infrastructure in virtualized environments.
255 For more information see:
256 http://tools.ietf.org/html/draft-gross-geneve-02
258 To compile this driver as a module, choose M here: the module
259 will be called geneve.
262 tristate "GPRS Tunneling Protocol datapath (GTP-U)"
264 select NET_UDP_TUNNEL
266 This allows one to create gtp virtual interfaces that provide
267 the GPRS Tunneling Protocol datapath (GTP-U). This tunneling protocol
268 is used to prevent subscribers from accessing mobile carrier core
269 network infrastructure. This driver requires a userspace software that
270 implements the signaling protocol (GTP-C) to update its PDP context
271 base, such as OpenGGSN <http://git.osmocom.org/openggsn/). This
272 tunneling protocol is implemented according to the GSM TS 09.60 and
273 3GPP TS 29.060 standards.
275 To compile this drivers as a module, choose M here: the module
279 tristate "IEEE 802.1AE MAC-level encryption (MACsec)"
285 MACsec is an encryption standard for Ethernet.
288 tristate "Network console logging support"
290 If you want to log kernel messages over the network, enable this.
291 See <file:Documentation/networking/netconsole.txt> for details.
293 config NETCONSOLE_DYNAMIC
294 bool "Dynamic reconfiguration of logging targets"
295 depends on NETCONSOLE && SYSFS && CONFIGFS_FS && \
296 !(NETCONSOLE=y && CONFIGFS_FS=m)
298 This option enables the ability to dynamically reconfigure target
299 parameters (interface, IP addresses, port numbers, MAC addresses)
300 at runtime through a userspace interface exported using configfs.
301 See <file:Documentation/networking/netconsole.txt> for details.
307 config NET_POLL_CONTROLLER
311 tristate "Virtual Ethernet over NTB Transport"
312 depends on NTB_TRANSPORT
315 tristate "RapidIO Ethernet over messaging driver support"
318 config RIONET_TX_SIZE
319 int "Number of outbound queue entries"
323 config RIONET_RX_SIZE
324 int "Number of inbound queue entries"
329 tristate "Universal TUN/TAP device driver support"
333 TUN/TAP provides packet reception and transmission for user space
334 programs. It can be viewed as a simple Point-to-Point or Ethernet
335 device, which instead of receiving packets from a physical media,
336 receives them from user space program and instead of sending packets
337 via physical media writes them to the user space program.
339 When a program opens /dev/net/tun, driver creates and registers
340 corresponding net device tunX or tapX. After a program closed above
341 devices, driver will automatically delete tunXX or tapXX device and
342 all routes corresponding to it.
344 Please read <file:Documentation/networking/tuntap.txt> for more
347 To compile this driver as a module, choose M here: the module
350 If you don't know what to use this for, you don't need it.
355 This option is selected by any driver implementing tap user space
356 interface for a virtual interface to re-use core tap functionality.
358 config TUN_VNET_CROSS_LE
359 bool "Support for cross-endian vnet headers on little-endian kernels"
362 This option allows TUN/TAP and MACVTAP device drivers in a
363 little-endian kernel to parse vnet headers that come from a
364 big-endian legacy virtio device.
366 Userspace programs can control the feature using the TUNSETVNETBE
367 and TUNGETVNETBE ioctls.
369 Unless you have a little-endian system hosting a big-endian virtual
370 machine with a legacy virtio NIC, you should say N.
373 tristate "Virtual ethernet pair device"
375 This device is a local ethernet tunnel. Devices are created in pairs.
376 When one end receives the packet it appears on its pair and vice
380 tristate "Virtio network driver"
384 This is the virtual network driver for virtio. It can be used with
385 QEMU based VMMs (like KVM or Xen). Say Y or M.
388 tristate "Virtual netlink monitoring device"
390 This option enables a monitoring net device for netlink skbs. The
391 purpose of this is to analyze netlink messages with packet sockets.
392 Thus applications like tcpdump will be able to see local netlink
393 messages if they tap into the netlink device, record pcaps for further
394 diagnostics, etc. This is mostly intended for developers or support
395 to debug netlink issues. If unsure, say N.
398 tristate "Virtual Routing and Forwarding (Lite)"
399 depends on IP_MULTIPLE_TABLES
400 depends on NET_L3_MASTER_DEV
401 depends on IPV6 || IPV6=n
402 depends on IPV6_MULTIPLE_TABLES || IPV6=n
404 This option enables the support for mapping interfaces into VRF's. The
405 support enables VRF devices.
408 tristate "Virtual vsock monitoring device"
409 depends on VHOST_VSOCK
411 This option enables a monitoring net device for vsock sockets. It is
412 mostly intended for developers or support to debug vsock issues. If
420 source "drivers/net/arcnet/Kconfig"
422 source "drivers/atm/Kconfig"
424 source "drivers/net/caif/Kconfig"
426 source "drivers/net/dsa/Kconfig"
428 source "drivers/net/ethernet/Kconfig"
430 source "drivers/net/fddi/Kconfig"
432 source "drivers/net/hippi/Kconfig"
435 tristate "General Instruments Surfboard 1000"
438 This is a driver for the General Instrument (also known as
439 NextLevel) SURFboard 1000 internal
440 cable modem. This is an ISA card which is used by a number of cable
441 TV companies to provide cable modem access. It's a one-way
442 downstream-only cable modem, meaning that your upstream net link is
443 provided by your regular phone modem.
445 At present this driver only compiles as a module, so say M here if
446 you have this card. The module will be called sb1000. Then read
447 <file:Documentation/networking/device_drivers/sb1000.txt> for
448 information on how to use this module, as it needs special ppp
449 scripts for establishing a connection. Further documentation
450 and the necessary scripts can be found at:
452 <http://www.jacksonville.net/~fventuri/>
453 <http://home.adelphia.net/~siglercm/sb1000.html>
454 <http://linuxpower.cx/~cable/>
456 If you don't have this card, of course say N.
458 source "drivers/net/phy/Kconfig"
460 source "drivers/net/plip/Kconfig"
462 source "drivers/net/ppp/Kconfig"
464 source "drivers/net/slip/Kconfig"
466 source "drivers/s390/net/Kconfig"
468 source "drivers/net/usb/Kconfig"
470 source "drivers/net/wireless/Kconfig"
472 source "drivers/net/wimax/Kconfig"
474 source "drivers/net/wan/Kconfig"
476 source "drivers/net/ieee802154/Kconfig"
478 config XEN_NETDEV_FRONTEND
479 tristate "Xen network device frontend driver"
481 select XEN_XENBUS_FRONTEND
484 This driver provides support for Xen paravirtual network
485 devices exported by a Xen network driver domain (often
488 The corresponding Linux backend driver is enabled by the
489 CONFIG_XEN_NETDEV_BACKEND option.
491 If you are compiling a kernel for use as Xen guest, you
492 should say Y here. To compile this driver as a module, chose
493 M here: the module will be called xen-netfront.
495 config XEN_NETDEV_BACKEND
496 tristate "Xen backend network device"
497 depends on XEN_BACKEND
499 This driver allows the kernel to act as a Xen network driver
500 domain which exports paravirtual network devices to other
501 Xen domains. These devices can be accessed by any operating
502 system that implements a compatible front end.
504 The corresponding Linux frontend driver is enabled by the
505 CONFIG_XEN_NETDEV_FRONTEND configuration option.
507 The backend driver presents a standard network device
508 endpoint for each paravirtual network device to the driver
509 domain network stack. These can then be bridged or routed
510 etc in order to provide full network connectivity.
512 If you are compiling a kernel to run in a Xen network driver
513 domain (often this is domain 0) you should say Y here. To
514 compile this driver as a module, chose M here: the module
515 will be called xen-netback.
518 tristate "VMware VMXNET3 ethernet driver"
519 depends on PCI && INET
520 depends on !(PAGE_SIZE_64KB || ARM64_64K_PAGES || \
521 IA64_PAGE_SIZE_64KB || MICROBLAZE_64K_PAGES || \
522 PARISC_PAGE_SIZE_64KB || PPC_64K_PAGES)
524 This driver supports VMware's vmxnet3 virtual ethernet NIC.
525 To compile this driver as a module, choose M here: the
526 module will be called vmxnet3.
529 tristate "FUJITSU Extended Socket Network Device driver"
532 This driver provides support for Extended Socket network device
533 on Extended Partitioning of FUJITSU PRIMEQUEST 2000 E2 series.
536 tristate "Networking over USB4 and Thunderbolt cables"
537 depends on USB4 && INET
539 Select this if you want to create network between two computers
540 over a USB4 and Thunderbolt cables. The driver supports Apple
541 ThunderboltIP protocol and allows communication with any host
542 supporting the same protocol including Windows and macOS.
544 To compile this driver a module, choose M here. The module will be
545 called thunderbolt-net.
547 source "drivers/net/hyperv/Kconfig"
550 tristate "Simulated networking device"
553 depends on IPV6 || IPV6=n
556 This driver is a developer testing tool and software model that can
557 be used to test various control path networking APIs, especially
560 To compile this driver as a module, choose M here: the module
561 will be called netdevsim.
564 tristate "Failover driver"
567 This provides an automated failover mechanism via APIs to create
568 and destroy a failover master netdev and manages a primary and
569 standby slave netdevs that get registered via the generic failover
570 infrastructure. This can be used by paravirtual drivers to enable
571 an alternate low latency datapath. It also enables live migration of
572 a VM with direct attached VF by failing over to the paravirtual
573 datapath when the VF is unplugged.