1 .TH IP\-LINK 8 "13 Dec 2012" "iproute2" "Linux"
3 ip-link \- network device configuration
10 .RI " { " COMMAND " | "
48 .BR "ip link delete " {
61 .RB "[ { " up " | " down " } ]"
64 .IR "ETYPE TYPE_ARGS" " ]"
66 .RB "[ " arp " { " on " | " off " } ]"
68 .RB "[ " dynamic " { " on " | " off " } ]"
70 .RB "[ " multicast " { " on " | " off " } ]"
72 .RB "[ " allmulticast " { " on " | " off " } ]"
74 .RB "[ " promisc " { " on " | " off " } ]"
76 .RB "[ " protodown " { " on " | " off " } ]"
78 .RB "[ " trailers " { " on " | " off " } ]"
96 .IR PID " | " NETNSNAME " } ]"
110 .RI "[ " VFVLAN-LIST " ]"
121 .RB "[ " spoofchk " { " on " | " off " } ]"
123 .RB "[ " query_rss " { " on " | " off " } ]"
125 .RB "[ " state " { " auto " | " enable " | " disable " } ]"
127 .RB "[ " trust " { " on " | " off " } ]"
129 .RB "[ " node_guid " eui64 ]"
131 .RB "[ " port_guid " eui64 ] ]"
134 .RB "[ { " xdp " | " xdpgeneric " | " xdpdrv " | " xdpoffload " } { " off " | "
141 .RB "[ " verbose " ] |"
150 .RB "[ " nomaster " ]"
155 .RB "[ " addrgenmode " { " eui64 " | " none " | " stable_secret " | " random " } ]"
157 .RB "[ " macaddr " { " flush " | { " add " | " del " } "
158 .IR MACADDR " | set [ "
160 .IR MACADDR " [ ... ] ] ] } ]"
165 .RI "[ " DEVICE " | "
227 .IR ETYPE " := [ " TYPE " |"
228 .BR bridge_slave " | " bond_slave " ]"
231 .IR VFVLAN-LIST " := [ " VFVLAN-LIST " ] " VFVLAN
240 .IR VLAN-PROTO " ] ]"
243 .SS ip link add - add virtual link
247 specifies the physical device to act operate on.
250 specifies the name of the new virtual device.
253 specifies the type of the new device.
259 - Ethernet Bridge device
265 - Dummy network interface
268 - High-availability Seamless Redundancy device
271 - Intermediate Functional Block device
274 - IP over Infiniband device
277 - Virtual interface base on link layer address (MAC)
280 - Virtual interface based on link layer address (MAC) and TAP.
283 - Virtual Controller Area Network interface
286 - Virtual Controller Area Network tunnel interface
289 - Virtual ethernet interface
292 - 802.1q tagged virtual LAN interface
295 - Virtual eXtended LAN
298 - Virtual tunnel interface IPv4|IPv6 over IPv6
301 - Virtual tunnel interface IPv4 over IPv4
304 - Virtual tunnel interface IPv6 over IPv4
307 - Virtual tunnel interface GRE over IPv4
310 - Virtual L2 tunnel interface GRE over IPv4
313 - Encapsulated Remote SPAN over GRE and IPv4
316 - Virtual tunnel interface GRE over IPv6
319 - Virtual L2 tunnel interface GRE over IPv6
322 - Encapsulated Remote SPAN over GRE and IPv6
325 - Virtual tunnel interface
328 - Netlink monitoring device
331 - Interface for L3 (IPv6/IPv4) based VLANs
334 - Interface for L3 (IPv6/IPv4) based VLANs and TAP
337 - Interface for 6LoWPAN (IPv6) over IEEE 802.15.4 / Bluetooth
340 - GEneric NEtwork Virtualization Encapsulation
343 - Interface for IEEE 802.1AE MAC Security (MACsec)
346 - Interface for L3 VRF domains
349 - Interface for netdev API tests
352 - Qualcomm rmnet device
356 .BI numtxqueues " QUEUE_COUNT "
357 specifies the number of transmit queues for new device.
360 .BI numrxqueues " QUEUE_COUNT "
361 specifies the number of receive queues for new device.
364 .BI gso_max_size " BYTES "
365 specifies the recommended maximum size of a Generic Segment Offload packet the new device should accept.
368 .BI gso_max_segs " SEGMENTS "
369 specifies the recommended maximum number of a Generic Segment Offload segments the new device should accept.
373 specifies the desired index of the new virtual device. The link creation fails, if the index is busy.
379 the following additional arguments are supported:
386 .BI protocol " VLAN_PROTO "
390 .BR reorder_hdr " { " on " | " off " } "
393 .BR gvrp " { " on " | " off " } "
396 .BR mvrp " { " on " | " off " } "
399 .BR loose_binding " { " on " | " off " } "
402 .BI ingress-qos-map " QOS-MAP "
405 .BI egress-qos-map " QOS-MAP "
410 .BI protocol " VLAN_PROTO "
411 - either 802.1Q or 802.1ad.
414 - specifies the VLAN Identifer to use. Note that numbers with a leading " 0 " or " 0x " are interpreted as octal or hexadeimal, respectively.
416 .BR reorder_hdr " { " on " | " off " } "
417 - specifies whether ethernet headers are reordered or not (default is
422 .BR reorder_hdr " is " on
423 then VLAN header will be not inserted immediately but only before passing to the
424 physical device (if this device does not support VLAN offloading), the similar
425 on the RX direction - by default the packet will be untagged before being
426 received by VLAN device. Reordering allows to accelerate tagging on egress and
427 to hide VLAN header on ingress so the packet looks like regular Ethernet packet,
428 at the same time it might be confusing for packet capture as the VLAN header
429 does not exist within the packet.
431 VLAN offloading can be checked by
437 .RB grep " tx-vlan-offload"
440 where <phy_dev> is the physical device to which VLAN device is bound.
443 .BR gvrp " { " on " | " off " } "
444 - specifies whether this VLAN should be registered using GARP VLAN Registration Protocol.
446 .BR mvrp " { " on " | " off " } "
447 - specifies whether this VLAN should be registered using Multiple VLAN Registration Protocol.
449 .BR loose_binding " { " on " | " off " } "
450 - specifies whether the VLAN device state is bound to the physical device state.
452 .BI ingress-qos-map " QOS-MAP "
453 - defines a mapping of VLAN header prio field to the Linux internal packet
454 priority on incoming frames. The format is FROM:TO with multiple mappings
457 .BI egress-qos-map " QOS-MAP "
458 - defines a mapping of Linux internal packet priority to VLAN header prio field
459 but for outgoing frames. The format is the same as for ingress-qos-map.
462 Linux packet priority can be set by
467 -t mangle -A POSTROUTING [...] -j CLASSIFY --set-class 0:4
470 and this "4" priority can be used in the egress qos mapping to set VLAN prio "5":
474 link set veth0.10 type vlan egress 4:5
483 the following additional arguments are supported:
485 .BI "ip link add " DEVICE
486 .BI type " vxlan " id " VNI"
489 .RB " ] [ { " group " | " remote " } "
493 .RI "{ "IPADDR " | "any " } "
501 .BI flowlabel " FLOWLABEL "
505 .BI srcport " MIN MAX "
519 .RB [ no ] udp6zerocsumtx
521 .RB [ no ] udp6zerocsumrx
523 .BI ageing " SECONDS "
525 .BI maxaddress " NUMBER "
537 - specifies the VXLAN Network Identifer (or VXLAN Segment
541 - specifies the physical device to use for tunnel endpoint communication.
545 - specifies the multicast IP address to join.
546 This parameter cannot be specified with the
552 - specifies the unicast destination IP address to use in outgoing packets
553 when the destination link layer address is not known in the VXLAN device
554 forwarding database. This parameter cannot be specified with the
560 - specifies the source IP address to use in outgoing packets.
564 - specifies the TTL value to use in outgoing packets.
568 - specifies the TOS value to use in outgoing packets.
572 - specifies the usage of the Don't Fragment flag (DF) bit in outgoing packets
573 with IPv4 headers. The value
575 causes the bit to be copied from the original IP header. The values
579 cause the bit to be always unset or always set, respectively. By default, the
583 .BI flowlabel " FLOWLABEL"
584 - specifies the flow label to use in outgoing packets.
588 - specifies the UDP destination port to communicate to the remote VXLAN tunnel endpoint.
591 .BI srcport " MIN MAX"
592 - specifies the range of port numbers to use as UDP
593 source ports to communicate to the remote VXLAN tunnel endpoint.
597 - specifies if unknown source link layer addresses and IP addresses
598 are entered into the VXLAN device forwarding database.
602 - specifies if route short circuit is turned on.
606 - specifies ARP proxy is turned on.
610 - specifies if netlink LLADDR miss notifications are generated.
614 - specifies if netlink IP ADDR miss notifications are generated.
618 - specifies if UDP checksum is calculated for transmitted packets over IPv4.
621 .RB [ no ] udp6zerocsumtx
622 - skip UDP checksum calculation for transmitted packets over IPv6.
625 .RB [ no ] udp6zerocsumrx
626 - allow incoming UDP packets over IPv6 with zero checksum field.
629 .BI ageing " SECONDS"
630 - specifies the lifetime in seconds of FDB entries learnt by the kernel.
633 .BI maxaddress " NUMBER"
634 - specifies the maximum number of FDB entries.
638 - specifies whether an external control plane
639 .RB "(e.g. " "ip route encap" )
640 or the internal FDB should be used.
644 - enables the Group Policy extension (VXLAN-GBP).
647 Allows to transport group policy context across VXLAN network peers.
648 If enabled, includes the mark of a packet in the VXLAN header for outgoing
649 packets and fills the packet mark based on the information found in the
650 VXLAN header for incoming packets.
652 Format of upper 16 bits of packet mark (flags);
655 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
657 |-|-|-|-|-|-|-|-|-|D|-|-|A|-|-|-|
659 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
662 Don't Learn bit. When set, this bit indicates that the egress
663 VTEP MUST NOT learn the source address of the encapsulated frame.
666 Indicates that the group policy has already been applied to
667 this packet. Policies MUST NOT be applied by devices when the A bit is set.
670 Format of lower 16 bits of packet mark (policy ID):
673 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
677 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
681 iptables -A OUTPUT [...] -j MARK --set-mark 0x800FF
687 - enables the Generic Protocol extension (VXLAN-GPE). Currently, this is
688 only supported together with the
695 VETH, VXCAN Type Support
698 the following additional arguments are supported:
700 .BI "ip link add " DEVICE
701 .BR type " { " veth " | " vxcan " }"
711 - specifies the virtual pair device name of the
718 IPIP, SIT Type Support
721 the following additional arguments are supported:
723 .BI "ip link add " DEVICE
724 .BR type " { " ipip " | " sit " }"
725 .BI " remote " ADDR " local " ADDR
727 .BR encap " { " fou " | " gue " | " none " }"
729 .BR encap-sport " { " \fIPORT " | " auto " }"
731 .BI "encap-dport " PORT
733 .RB [ no ] encap-csum
735 .I " [no]encap-remcsum "
737 .I " mode " { ip6ip | ipip | mplsip | any } "
745 - specifies the remote address of the tunnel.
749 - specifies the fixed local address for tunneled packets.
750 It must be an address on another interface on this host.
753 .BR encap " { " fou " | " gue " | " none " }"
754 - specifies type of secondary UDP encapsulation. "fou" indicates
755 Foo-Over-UDP, "gue" indicates Generic UDP Encapsulation.
758 .BR encap-sport " { " \fIPORT " | " auto " }"
759 - specifies the source port in UDP encapsulation.
761 indicates the port by number, "auto"
762 indicates that the port number should be chosen automatically
763 (the kernel picks a flow based on the flow hash of the
764 encapsulated packet).
767 .RB [ no ] encap-csum
768 - specifies if UDP checksums are enabled in the secondary
772 .RB [ no ] encap-remcsum
773 - specifies if Remote Checksum Offload is enabled. This is only
774 applicable for Generic UDP Encapsulation.
777 .BI mode " { ip6ip | ipip | mplsip | any } "
778 - specifies mode in which device should run. "ip6ip" indicates
779 IPv6-Over-IPv4, "ipip" indicates "IPv4-Over-IPv4", "mplsip" indicates
780 MPLS-Over-IPv4, "any" indicates IPv6, IPv4 or MPLS Over IPv4. Supported for
781 SIT where the default is "ip6ip" and IPIP where the default is "ipip".
782 IPv6-Over-IPv4 is not supported for IPIP.
786 - make this tunnel externally controlled
787 .RB "(e.g. " "ip route encap" ).
793 .IR GRE " or " GRETAP
794 the following additional arguments are supported:
796 .BI "ip link add " DEVICE
797 .BR type " { " gre " | " gretap " }"
798 .BI " remote " ADDR " local " ADDR
800 .RB [ no ] "" [ i | o ] seq
807 .RB [ no ] "" [ i | o ] csum
819 .BR encap " { " fou " | " gue " | " none " }"
821 .BR encap-sport " { " \fIPORT " | " auto " }"
823 .BI "encap-dport " PORT
825 .RB [ no ] encap-csum
827 .RB [ no ] encap-remcsum
835 - specifies the remote address of the tunnel.
839 - specifies the fixed local address for tunneled packets.
840 It must be an address on another interface on this host.
843 .RB [ no ] "" [ i | o ] seq
847 flag enables sequencing of outgoing packets.
850 flag requires that all input packets are serialized.
857 - use keyed GRE with key
859 is either a number or an IPv4 address-like dotted quad.
862 parameter specifies the same key to use in both directions.
864 .BR ikey " and " okey
865 parameters specify different keys for input and output.
868 .RB [ no ] "" [ i | o ] csum
869 - generate/require checksums for tunneled packets.
872 flag calculates checksums for outgoing packets.
875 flag requires that all input packets have the correct
878 flag is equivalent to the combination
883 - specifies the TTL value to use in outgoing packets.
887 - specifies the TOS value to use in outgoing packets.
891 - enables/disables Path MTU Discovery on this tunnel.
892 It is enabled by default. Note that a fixed ttl is incompatible
893 with this option: tunneling with a fixed ttl always makes pmtu
898 - enables/disables IPv4 DF suppression on this tunnel.
899 Normally datagrams that exceed the MTU will be fragmented; the presence
900 of the DF flag inhibits this, resulting instead in an ICMP Unreachable
901 (Fragmentation Required) message. Enabling this attribute causes the
902 DF flag to be ignored.
906 - specifies the physical device to use for tunnel endpoint communication.
909 .BR encap " { " fou " | " gue " | " none " }"
910 - specifies type of secondary UDP encapsulation. "fou" indicates
911 Foo-Over-UDP, "gue" indicates Generic UDP Encapsulation.
914 .BR encap-sport " { " \fIPORT " | " auto " }"
915 - specifies the source port in UDP encapsulation.
917 indicates the port by number, "auto"
918 indicates that the port number should be chosen automatically
919 (the kernel picks a flow based on the flow hash of the
920 encapsulated packet).
923 .RB [ no ] encap-csum
924 - specifies if UDP checksums are enabled in the secondary
928 .RB [ no ] encap-remcsum
929 - specifies if Remote Checksum Offload is enabled. This is only
930 applicable for Generic UDP Encapsulation.
934 - make this tunnel externally controlled
935 .RB "(e.g. " "ip route encap" ).
940 IP6GRE/IP6GRETAP Type Support
943 the following additional arguments are supported:
945 .BI "ip link add " DEVICE
946 .BR type " { " ip6gre " | " ip6gretap " }"
947 .BI remote " ADDR " local " ADDR"
949 .RB [ no ] "" [ i | o ] seq
956 .RB [ no ] "" [ i | o ] csum
960 .BI encaplimit " ELIM "
962 .BI tclass " TCLASS "
964 .BI flowlabel " FLOWLABEL "
968 .BI "[no]allow-localremote"
978 - specifies the remote IPv6 address of the tunnel.
982 - specifies the fixed local IPv6 address for tunneled packets.
983 It must be an address on another interface on this host.
986 .RB [ no ] "" [ i | o ] seq
990 flag enables sequencing of outgoing packets.
993 flag requires that all input packets are serialized.
1000 - use keyed GRE with key
1002 is either a number or an IPv4 address-like dotted quad.
1005 parameter specifies the same key to use in both directions.
1007 .BR ikey " and " okey
1008 parameters specify different keys for input and output.
1011 .RB [ no ] "" [ i | o ] csum
1012 - generate/require checksums for tunneled packets.
1015 flag calculates checksums for outgoing packets.
1018 flag requires that all input packets have the correct
1021 flag is equivalent to the combination
1026 - specifies Hop Limit value to use in outgoing packets.
1029 .BI encaplimit " ELIM"
1030 - specifies a fixed encapsulation limit. Default is 4.
1033 .BI flowlabel " FLOWLABEL"
1034 - specifies a fixed flowlabel.
1037 .BI [no]allow-localremote
1038 - specifies whether to allow remote endpoint to have an address configured on
1042 .BI tclass " TCLASS"
1043 - specifies the traffic class field on
1044 tunneled packets, which can be specified as either a two-digit
1045 hex value (e.g. c0) or a predefined string (e.g. internet).
1048 causes the field to be copied from the original IP header. The
1050 .BI "inherit/" STRING
1052 .BI "inherit/" 00 ".." ff
1053 will set the field to
1057 when tunneling non-IP packets. The default value is 00.
1061 - make this tunnel externally controlled (or not, which is the default).
1062 In the kernel, this is referred to as collect metadata mode. This flag is
1063 mutually exclusive with the
1071 .BR flowlabel " and " tclass
1080 the following additional arguments are supported:
1082 .BI "ip link add " DEVICE " name " NAME
1083 .BR "type ipoib " [ " pkey \fIPKEY" " ] [ " mode " \fIMODE \fR]"
1088 - specifies the IB P-Key to use.
1091 - specifies the mode (datagram or connected) to use.
1097 the following additional arguments are supported:
1099 .BI "ip link add " DEVICE
1100 .BR type " { " erspan " | " ip6erspan " }"
1101 .BI remote " ADDR " local " ADDR " seq
1104 .BR erspan_ver " \fIversion "
1106 .BR erspan " \fIIDX "
1108 .BR erspan_dir " { " \fIingress " | " \fIegress " }"
1110 .BR erspan_hwid " \fIhwid "
1112 .BI "[no]allow-localremote"
1120 - specifies the remote address of the tunnel.
1124 - specifies the fixed local address for tunneled packets.
1125 It must be an address on another interface on this host.
1128 .BR erspan_ver " \fIversion "
1129 - specifies the ERSPAN version number.
1131 indicates the ERSPAN version to be created: 1 for version 1 (type II)
1132 or 2 for version 2 (type III).
1135 .BR erspan " \fIIDX "
1136 - specifies the ERSPAN v1 index field.
1138 indicates a 20 bit index/port number associated with the ERSPAN
1139 traffic's source port and direction.
1142 .BR erspan_dir " { " \fIingress " | " \fIegress " }"
1143 - specifies the ERSPAN v2 mirrored traffic's direction.
1146 .BR erspan_hwid " \fIhwid "
1147 - an unique identifier of an ERSPAN v2 engine within a system.
1149 is a 6-bit value for users to configure.
1152 .BI [no]allow-localremote
1153 - specifies whether to allow remote endpoint to have an address configured on
1158 - make this tunnel externally controlled (or not, which is the default).
1159 In the kernel, this is referred to as collect metadata mode. This flag is
1160 mutually exclusive with the
1165 .BR erspan_dir " and " erspan_hwid
1174 the following additional arguments are supported:
1176 .BI "ip link add " DEVICE
1177 .BI type " geneve " id " VNI " remote " IPADDR"
1183 .BI flowlabel " FLOWLABEL "
1191 .RB [ no ] udp6zerocsumtx
1193 .RB [ no ] udp6zerocsumrx
1199 - specifies the Virtual Network Identifer to use.
1202 .BI remote " IPADDR"
1203 - specifies the unicast destination IP address to use in outgoing packets.
1207 - specifies the TTL value to use in outgoing packets. "0" or "auto" means
1208 use whatever default value, "inherit" means inherit the inner protocol's
1209 ttl. Default option is "0".
1213 - specifies the TOS value to use in outgoing packets.
1216 .BI flowlabel " FLOWLABEL"
1217 - specifies the flow label to use in outgoing packets.
1221 - select a destination port other than the default of 6081.
1225 - make this tunnel externally controlled (or not, which is the default). This
1226 flag is mutually exclusive with the
1230 .BR tos " and " flowlabel
1235 - specifies if UDP checksum is calculated for transmitted packets over IPv4.
1238 .RB [ no ] udp6zerocsumtx
1239 - skip UDP checksum calculation for transmitted packets over IPv6.
1242 .RB [ no ] udp6zerocsumrx
1243 - allow incoming UDP packets over IPv6 with zero checksum field.
1248 MACVLAN and MACVTAP Type Support
1253 the following additional arguments are supported:
1255 .BI "ip link add link " DEVICE " name " NAME
1256 .BR type " { " macvlan " | " macvtap " } "
1257 .BR mode " { " private " | " vepa " | " bridge " | " passthru
1258 .RB " [ " nopromisc " ] | " source " } "
1262 .BR type " { " macvlan " | " macvtap " } "
1263 - specifies the link type to use.
1264 .BR macvlan " creates just a virtual interface, while "
1265 .BR macvtap " in addition creates a character device "
1266 .BR /dev/tapX " to be used just like a " tuntap " device."
1269 - Do not allow communication between
1271 instances on the same physical interface, even if the external switch supports
1275 - Virtual Ethernet Port Aggregator mode. Data from one
1277 instance to the other on the same physical interface is transmitted over the
1278 physical interface. Either the attached switch needs to support hairpin mode,
1279 or there must be a TCP/IP router forwarding the packets in order to allow
1280 communication. This is the default mode.
1283 - In bridge mode, all endpoints are directly connected to each other,
1284 communication is not redirected through the physical interface's peer.
1286 .BR mode " " passthru " [ " nopromisc " ] "
1287 - This mode gives more power to a single endpoint, usually in
1288 .BR macvtap " mode. It is not allowed for more than one endpoint on the same "
1289 physical interface. All traffic will be forwarded to this endpoint, allowing
1290 virtio guests to change MAC address or set promiscuous mode in order to bridge
1291 the interface or create vlan interfaces on top of it. By default, this mode
1292 forces the underlying interface into promiscuous mode. Passing the
1293 .BR nopromisc " flag prevents this, so the promisc flag may be controlled "
1294 using standard tools.
1297 - allows one to set a list of allowed mac address, which is used to match
1298 against source mac address from received frames on underlying interface. This
1299 allows creating mac based VLAN associations, instead of standard port or tag
1300 based. The feature is useful to deploy 802.1x mac based behavior,
1301 where drivers of underlying interfaces doesn't allows that.
1305 High-availability Seamless Redundancy (HSR) Support
1308 the following additional arguments are supported:
1310 .BI "ip link add link " DEVICE " name " NAME " type hsr"
1311 .BI slave1 " SLAVE1-IF " slave2 " SLAVE2-IF "
1312 .RB [ " supervision"
1313 .IR ADDR-BYTE " ] ["
1314 .BR version " { " 0 " | " 1 " } ]"
1319 - specifies the link type to use, here HSR.
1321 .BI slave1 " SLAVE1-IF "
1322 - Specifies the physical device used for the first of the two ring ports.
1324 .BI slave2 " SLAVE2-IF "
1325 - Specifies the physical device used for the second of the two ring ports.
1327 .BI supervision " ADDR-BYTE"
1328 - The last byte of the multicast address used for HSR supervision frames.
1329 Default option is "0", possible values 0-255.
1331 .BR version " { " 0 " | " 1 " }"
1332 - Selects the protocol version of the interface. Default option is "0", which
1333 corresponds to the 2010 version of the HSR standard. Option "1" activates the
1341 the following additional arguments are supported:
1343 .BI "ip link add " DEVICE " type bridge "
1345 .BI ageing_time " AGEING_TIME "
1347 .BI group_fwd_mask " MASK "
1349 .BI group_address " ADDRESS "
1351 .BI forward_delay " FORWARD_DELAY "
1353 .BI hello_time " HELLO_TIME "
1355 .BI max_age " MAX_AGE "
1357 .BI stp_state " STP_STATE "
1359 .BI priority " PRIORITY "
1361 .BI vlan_filtering " VLAN_FILTERING "
1363 .BI vlan_protocol " VLAN_PROTOCOL "
1365 .BI vlan_default_pvid " VLAN_DEFAULT_PVID "
1367 .BI vlan_stats_enabled " VLAN_STATS_ENABLED "
1369 .BI mcast_snooping " MULTICAST_SNOOPING "
1371 .BI mcast_router " MULTICAST_ROUTER "
1373 .BI mcast_query_use_ifaddr " MCAST_QUERY_USE_IFADDR "
1375 .BI mcast_querier " MULTICAST_QUERIER "
1377 .BI mcast_hash_elasticity " HASH_ELASTICITY "
1379 .BI mcast_hash_max " HASH_MAX "
1381 .BI mcast_last_member_count " LAST_MEMBER_COUNT "
1383 .BI mcast_startup_query_count " STARTUP_QUERY_COUNT "
1385 .BI mcast_last_member_interval " LAST_MEMBER_INTERVAL "
1387 .BI mcast_membership_interval " MEMBERSHIP_INTERVAL "
1389 .BI mcast_querier_interval " QUERIER_INTERVAL "
1391 .BI mcast_query_interval " QUERY_INTERVAL "
1393 .BI mcast_query_response_interval " QUERY_RESPONSE_INTERVAL "
1395 .BI mcast_startup_query_interval " STARTUP_QUERY_INTERVAL "
1397 .BI mcast_stats_enabled " MCAST_STATS_ENABLED "
1399 .BI mcast_igmp_version " IGMP_VERSION "
1401 .BI mcast_mld_version " MLD_VERSION "
1403 .BI nf_call_iptables " NF_CALL_IPTABLES "
1405 .BI nf_call_ip6tables " NF_CALL_IP6TABLES "
1407 .BI nf_call_arptables " NF_CALL_ARPTABLES "
1412 .BI ageing_time " AGEING_TIME "
1413 - configure the bridge's FDB entries ageing time, ie the number of seconds a MAC address will be kept in the FDB after a packet has been received from that address. after this time has passed, entries are cleaned up.
1415 .BI group_fwd_mask " MASK "
1416 - set the group forward mask. This is the bitmask that is applied to decide whether to forward incoming frames destined to link-local addresses, ie addresses of the form 01:80:C2:00:00:0X (defaults to 0, ie the bridge does not forward any link-local frames).
1418 .BI group_address " ADDRESS "
1419 - set the MAC address of the multicast group this bridge uses for STP. The address must be a link-local address in standard Ethernet MAC address format, ie an address of the form 01:80:C2:00:00:0X, with X in [0, 4..f].
1421 .BI forward_delay " FORWARD_DELAY "
1422 - set the forwarding delay in seconds, ie the time spent in LISTENING state (before moving to LEARNING) and in LEARNING state (before moving to FORWARDING). Only relevant if STP is enabled. Valid values are between 2 and 30.
1424 .BI hello_time " HELLO_TIME "
1425 - set the time in seconds between hello packets sent by the bridge, when it is a root bridge or a designated bridges. Only relevant if STP is enabled. Valid values are between 1 and 10.
1427 .BI max_age " MAX_AGE "
1428 - set the hello packet timeout, ie the time in seconds until another bridge in the spanning tree is assumed to be dead, after reception of its last hello message. Only relevant if STP is enabled. Valid values are between 6 and 40.
1430 .BI stp_state " STP_STATE "
1431 - turn spanning tree protocol on
1432 .RI ( STP_STATE " > 0) "
1434 .RI ( STP_STATE " == 0). "
1437 .BI priority " PRIORITY "
1438 - set this bridge's spanning tree priority, used during STP root bridge election.
1440 is a 16bit unsigned integer.
1442 .BI vlan_filtering " VLAN_FILTERING "
1443 - turn VLAN filtering on
1444 .RI ( VLAN_FILTERING " > 0) "
1446 .RI ( VLAN_FILTERING " == 0). "
1447 When disabled, the bridge will not consider the VLAN tag when handling packets.
1449 .BR vlan_protocol " { " 802.1Q " | " 802.1ad " } "
1450 - set the protocol used for VLAN filtering.
1452 .BI vlan_default_pvid " VLAN_DEFAULT_PVID "
1453 - set the default PVID (native/untagged VLAN ID) for this bridge.
1455 .BI vlan_stats_enabled " VLAN_STATS_ENABLED "
1457 .RI ( VLAN_STATS_ENABLED " == 1) "
1459 .RI ( VLAN_STATS_ENABLED " == 0) "
1460 per-VLAN stats accounting.
1462 .BI mcast_snooping " MULTICAST_SNOOPING "
1463 - turn multicast snooping on
1464 .RI ( MULTICAST_SNOOPING " > 0) "
1466 .RI ( MULTICAST_SNOOPING " == 0). "
1468 .BI mcast_router " MULTICAST_ROUTER "
1469 - set bridge's multicast router if IGMP snooping is enabled.
1471 is an integer value having the following meaning:
1478 - automatic (queried).
1481 - permanently enabled.
1484 .BI mcast_query_use_ifaddr " MCAST_QUERY_USE_IFADDR "
1485 - whether to use the bridge's own IP address as source address for IGMP queries
1486 .RI ( MCAST_QUERY_USE_IFADDR " > 0) "
1487 or the default of 0.0.0.0
1488 .RI ( MCAST_QUERY_USE_IFADDR " == 0). "
1490 .BI mcast_querier " MULTICAST_QUERIER "
1492 .RI ( MULTICAST_QUERIER " > 0) "
1494 .RI ( MULTICAST_QUERIER " == 0) "
1495 IGMP querier, ie sending of multicast queries by the bridge (default: disabled).
1497 .BI mcast_querier_interval " QUERIER_INTERVAL "
1498 - interval between queries sent by other routers. if no queries are seen after this delay has passed, the bridge will start to send its own queries (as if
1502 .BI mcast_hash_elasticity " HASH_ELASTICITY "
1503 - set multicast database hash elasticity, ie the maximum chain length in the multicast hash table (defaults to 4).
1505 .BI mcast_hash_max " HASH_MAX "
1506 - set maximum size of multicast hash table (defaults to 512, value must be a power of 2).
1508 .BI mcast_last_member_count " LAST_MEMBER_COUNT "
1509 - set multicast last member count, ie the number of queries the bridge will send before stopping forwarding a multicast group after a "leave" message has been received (defaults to 2).
1511 .BI mcast_last_member_interval " LAST_MEMBER_INTERVAL "
1512 - interval between queries to find remaining members of a group, after a "leave" message is received.
1514 .BI mcast_startup_query_count " STARTUP_QUERY_COUNT "
1515 - set the number of IGMP queries to send during startup phase (defaults to 2).
1517 .BI mcast_startup_query_interval " STARTUP_QUERY_INTERVAL "
1518 - interval between queries in the startup phase.
1520 .BI mcast_query_interval " QUERY_INTERVAL "
1521 - interval between queries sent by the bridge after the end of the startup phase.
1523 .BI mcast_query_response_interval " QUERY_RESPONSE_INTERVAL "
1524 - set the Max Response Time/Maximum Response Delay for IGMP/MLD queries sent by the bridge.
1526 .BI mcast_membership_interval " MEMBERSHIP_INTERVAL "
1527 - delay after which the bridge will leave a group, if no membership reports for this group are received.
1529 .BI mcast_stats_enabled " MCAST_STATS_ENABLED "
1531 .RI ( MCAST_STATS_ENABLED " > 0) "
1533 .RI ( MCAST_STATS_ENABLED " == 0) "
1534 multicast (IGMP/MLD) stats accounting.
1536 .BI mcast_igmp_version " IGMP_VERSION "
1537 - set the IGMP version.
1539 .BI mcast_mld_version " MLD_VERSION "
1540 - set the MLD version.
1542 .BI nf_call_iptables " NF_CALL_IPTABLES "
1544 .RI ( NF_CALL_IPTABLES " > 0) "
1546 .RI ( NF_CALL_IPTABLES " == 0) "
1547 iptables hooks on the bridge.
1549 .BI nf_call_ip6tables " NF_CALL_IP6TABLES "
1551 .RI ( NF_CALL_IP6TABLES " > 0) "
1553 .RI ( NF_CALL_IP6TABLES " == 0) "
1554 ip6tables hooks on the bridge.
1556 .BI nf_call_arptables " NF_CALL_ARPTABLES "
1558 .RI ( NF_CALL_ARPTABLES " > 0) "
1560 .RI ( NF_CALL_ARPTABLES " == 0) "
1561 arptables hooks on the bridge.
1570 the following additional arguments are supported:
1572 .BI "ip link add link " DEVICE " name " NAME " type macsec"
1574 .BI address " <lladdr>"
1580 .BI cipher " CIPHER_SUITE"
1585 .BR on " | " off " } ] [ "
1586 .BR send_sci " { " on " | " off " } ] ["
1587 .BR end_station " { " on " | " off " } ] ["
1588 .BR scb " { " on " | " off " } ] ["
1589 .BR protect " { " on " | " off " } ] ["
1590 .BR replay " { " on " | " off " }"
1592 .IR 0..2^32-1 " } ] ["
1593 .BR validate " { " strict " | " check " | " disabled " } ] ["
1594 .BR encodingsa " { "
1599 .BI address " <lladdr> "
1600 - sets the system identifier component of secure channel for this MACsec device.
1604 - sets the port number component of secure channel for this MACsec device, in a
1605 range from 1 to 65535 inclusive. Numbers with a leading " 0 " or " 0x " are
1606 interpreted as octal and hexadecimal, respectively.
1610 - sets the secure channel identifier for this MACsec device.
1612 is a 64bit wide number in hexadecimal format.
1615 .BI cipher " CIPHER_SUITE "
1616 - defines the cipher suite to use.
1619 .BI icvlen " LENGTH "
1620 - sets the length of the Integrity Check Value (ICV).
1623 .BR "encrypt on " or " encrypt off"
1624 - switches between authenticated encryption, or authenticity mode only.
1627 .BR "send_sci on " or " send_sci off"
1628 - specifies whether the SCI is included in every packet, or only when it is necessary.
1631 .BR "end_station on " or " end_station off"
1632 - sets the End Station bit.
1635 .BR "scb on " or " scb off"
1636 - sets the Single Copy Broadcast bit.
1639 .BR "protect on " or " protect off"
1640 - enables MACsec protection on the device.
1643 .BR "replay on " or " replay off"
1644 - enables replay protection on the device.
1650 - sets the size of the replay window.
1655 .BR "validate strict " or " validate check " or " validate disabled"
1656 - sets the validation mode on the device.
1659 .BI encodingsa " AN "
1660 - sets the active secure association for transmission.
1668 the following additional arguments are supported:
1670 .BI "ip link add " DEVICE " type vrf table " TABLE
1674 .BR table " table id associated with VRF device"
1682 the following additional arguments are supported:
1684 .BI "ip link add link " DEVICE " name " NAME " type rmnet mux_id " MUXID
1688 .BI mux_id " MUXID "
1689 - specifies the mux identifier for the rmnet device, possible values 1-254.
1693 .SS ip link delete - delete virtual link
1697 specifies the virtual device to act operate on.
1701 specifies the group of virtual links to delete. Group 0 is not allowed to be
1702 deleted since it is the default group.
1706 specifies the type of the device.
1708 .SS ip link set - change device attributes
1712 If multiple parameter changes are requested,
1714 aborts immediately after any of the changes have failed.
1715 This is the only case when
1717 can move the system to an unpredictable state. The solution
1718 is to avoid changing several parameters with one
1725 specifies network device to operate on. When configuring SR-IOV Virtual Function
1726 (VF) devices, this keyword should specify the associated Physical Function (PF)
1732 has a dual role: If both group and dev are present, then move the device to the
1733 specified group. If only a group is specified, then the command operates on
1734 all devices in that group.
1738 change the state of the device to
1744 .BR "arp on " or " arp off"
1750 .BR "multicast on " or " multicast off"
1756 .BR "protodown on " or " protodown off"
1759 state on the device. Indicates that a protocol error has been detected on the port. Switch drivers can react to this error by doing a phys down on the switch port.
1762 .BR "dynamic on " or " dynamic off"
1765 flag on the device. Indicates that address can change when interface goes down (currently
1771 change the name of the device. This operation is not
1772 recommended if the device is running or has some addresses
1776 .BI txqueuelen " NUMBER"
1778 .BI txqlen " NUMBER"
1779 change the transmit queue length of the device.
1788 .BI address " LLADDRESS"
1789 change the station address of the interface.
1792 .BI broadcast " LLADDRESS"
1794 .BI brd " LLADDRESS"
1796 .BI peer " LLADDRESS"
1797 change the link layer broadcast address or the peer address when
1802 .BI netns " NETNSNAME " \fR| " PID"
1803 move the device to the network namespace associated with name
1807 Some devices are not allowed to change network namespace: loopback, bridge,
1808 ppp, wireless. These are network namespace local devices. In such case
1810 tool will return "Invalid argument" error. It is possible to find out if device is local
1811 to a single network namespace by checking
1813 flag in the output of the
1821 To change network namespace for wireless devices the
1823 tool can be used. But it allows to change network namespace only for physical devices and by process
1828 give the device a symbolic name for easy reference.
1832 specify the group the device belongs to.
1833 The available groups are listed in file
1834 .BR "@SYSCONFDIR@/group" .
1838 specify a Virtual Function device to be configured. The associated PF device
1839 must be specified using the
1844 .BI mac " LLADDRESS"
1845 - change the station address for the specified VF. The
1847 parameter must be specified.
1851 - change the assigned VLAN for the specified VF. When specified, all traffic
1852 sent from the VF will be tagged with the specified VLAN ID. Incoming traffic
1853 will be filtered for the specified VLAN ID, and will have all VLAN tags
1854 stripped before being passed to the VF. Setting this parameter to 0 disables
1855 VLAN tagging and filtering. The
1857 parameter must be specified.
1861 - assign VLAN QOS (priority) bits for the VLAN tag. When specified, all VLAN
1862 tags transmitted by the VF will include the specified priority bits in the
1863 VLAN tag. If not specified, the value is assumed to be 0. Both the
1867 parameters must be specified. Setting both
1871 as 0 disables VLAN tagging and filtering for the VF.
1874 .BI proto " VLAN-PROTO"
1875 - assign VLAN PROTOCOL for the VLAN tag, either 802.1Q or 802.1ad.
1876 Setting to 802.1ad, all traffic sent from the VF will be tagged with VLAN S-Tag.
1877 Incoming traffic will have VLAN S-Tags stripped before being passed to the VF.
1878 Setting to 802.1ad also enables an option to concatenate another VLAN tag, so both
1879 S-TAG and C-TAG will be inserted/stripped for outgoing/incoming traffic, respectively.
1880 If not specified, the value is assumed to be 802.1Q. Both the
1884 parameters must be specified.
1888 -- change the allowed transmit bandwidth, in Mbps, for the specified VF.
1889 Setting this parameter to 0 disables rate limiting.
1891 parameter must be specified.
1897 .BI max_tx_rate " TXRATE"
1898 - change the allowed maximum transmit bandwidth, in Mbps, for the specified VF.
1899 Setting this parameter to 0 disables rate limiting.
1901 parameter must be specified.
1904 .BI min_tx_rate " TXRATE"
1905 - change the allowed minimum transmit bandwidth, in Mbps, for the specified VF.
1906 Minimum TXRATE should be always <= Maximum TXRATE.
1907 Setting this parameter to 0 disables rate limiting.
1909 parameter must be specified.
1912 .BI spoofchk " on|off"
1913 - turn packet spoof checking on or off for the specified VF.
1915 .BI query_rss " on|off"
1916 - toggle the ability of querying the RSS configuration of a specific VF. VF RSS information like RSS hash key may be considered sensitive on some devices where this information is shared between VF and PF and thus its querying may be prohibited by default.
1918 .BI state " auto|enable|disable"
1919 - set the virtual link state as seen by the specified VF. Setting to auto means a
1920 reflection of the PF link state, enable lets the VF to communicate with other VFs on
1921 this host even if the PF link state is down, disable causes the HW to drop any packets
1925 - trust the specified VF user. This enables that VF user can set a specific feature
1926 which may impact security and/or performance. (e.g. VF multicast promiscuous mode)
1928 .BI node_guid " eui64"
1929 - configure node GUID for Infiniband VFs.
1931 .BI port_guid " eui64"
1932 - configure port GUID for Infiniband VFs.
1936 .B xdp object "|" pinned "|" off
1937 set (or unset) a XDP ("eXpress Data Path") BPF program to run on every
1938 packet at driver level.
1940 output will indicate a
1942 flag for the networking device. If the driver does not have native XDP
1943 support, the kernel will fall back to a slower, driver-independent "generic"
1946 output will in that case indicate
1950 only. If the driver does have native XDP support, but the program is
1952 .B xdpgeneric object "|" pinned
1953 then the kernel will use the generic XDP variant instead of the native one.
1955 has the opposite effect of requestsing that the automatic fallback to the
1956 generic XDP variant be disabled and in case driver is not XDP-capable error
1959 also disables hardware offloads.
1961 in ip link output indicates that the program has been offloaded to hardware
1962 and can also be used to request the "offload" mode, much like
1964 it forces program to be installed specifically in HW/FW of the apater.
1970 - Detaches any currently attached XDP/BPF program from the given device.
1973 - Attaches a XDP/BPF program to the given device. The
1975 points to a BPF ELF file (f.e. generated by LLVM) that contains the BPF
1976 program code, map specifications, etc. If a XDP/BPF program is already
1977 attached to the given device, an error will be thrown. If no XDP/BPF
1978 program is currently attached, the device supports XDP and the program
1979 from the BPF ELF file passes the kernel verifier, then it will be attached
1980 to the device. If the option
1984 then any prior attached XDP/BPF program will be atomically overridden and
1985 no error will be thrown in this case. If no
1987 option is passed, then the default section name ("prog") will be assumed,
1988 otherwise the provided section name will be used. If no
1990 option is passed, then a verifier log will only be dumped on load error.
1993 section for usage examples.
1995 .BI section " NAME "
1996 - Specifies a section name that contains the BPF program code. If no section
1997 name is specified, the default one ("prog") will be used. This option is
1998 to be passed with the
2003 - Act in verbose mode. For example, even in case of success, this will
2004 print the verifier log in case a program was loaded from a BPF ELF file.
2007 - Attaches a XDP/BPF program to the given device. The
2009 points to an already pinned BPF program in the BPF file system. The option
2011 doesn't apply here, but otherwise semantics are the same as with the option
2016 .BI master " DEVICE"
2017 set master device of the device (enslave device).
2021 unset master device of the device (release device).
2024 .BI addrgenmode " eui64|none|stable_secret|random"
2025 set the IPv6 address generation mode
2028 - use a Modified EUI-64 format interface identifier
2031 - disable automatic address generation
2034 - generate the interface identifier based on a preset /proc/sys/net/ipv6/conf/{default,DEVICE}/stable_secret
2037 - like stable_secret, but auto-generate a new random secret if none is set
2041 set peer netnsid for a cross-netns interface
2044 .BI type " ETYPE TYPE_ARGS"
2045 Change type-specific settings. For a list of supported types and arguments refer
2046 to the description of
2048 above. In addition to that, it is possible to manipulate settings to slave
2052 Bridge Slave Support
2053 For a link with master
2055 the following additional arguments are supported:
2057 .B "ip link set type bridge_slave"
2063 .BI priority " PRIO"
2067 .BR guard " { " on " | " off " }"
2069 .BR hairpin " { " on " | " off " }"
2071 .BR fastleave " { " on " | " off " }"
2073 .BR root_block " { " on " | " off " }"
2075 .BR learning " { " on " | " off " }"
2077 .BR flood " { " on " | " off " }"
2079 .BR proxy_arp " { " on " | " off " }"
2081 .BR proxy_arp_wifi " { " on " | " off " }"
2083 .BI mcast_router " MULTICAST_ROUTER"
2085 .BR mcast_fast_leave " { " on " | " off "}"
2087 .BR mcast_flood " { " on " | " off " }"
2089 .BR group_fwd_mask " MASK"
2091 .BR neigh_suppress " { " on " | " off " }"
2093 .BR vlan_tunnel " { " on " | " off " }"
2095 .BR isolated " { " on " | " off " }"
2097 .BR backup_port " DEVICE"
2099 .BR nobackup_port " ]"
2104 - flush bridge slave's fdb dynamic entries.
2109 is a number representing the following states:
2110 .BR 0 " (disabled),"
2111 .BR 1 " (listening),"
2112 .BR 2 " (learning),"
2113 .BR 3 " (forwarding),"
2114 .BR 4 " (blocking)."
2116 .BI priority " PRIO"
2117 - set port priority (allowed values are between 0 and 63, inclusively).
2120 - set port cost (allowed values are between 1 and 65535, inclusively).
2122 .BR guard " { " on " | " off " }"
2123 - block incoming BPDU packets on this port.
2125 .BR hairpin " { " on " | " off " }"
2126 - enable hairpin mode on this port. This will allow incoming packets on this
2127 port to be reflected back.
2129 .BR fastleave " { " on " | " off " }"
2130 - enable multicast fast leave on this port.
2132 .BR root_block " { " on " | " off " }"
2133 - block this port from becoming the bridge's root port.
2135 .BR learning " { " on " | " off " }"
2136 - allow MAC address learning on this port.
2138 .BR flood " { " on " | " off " }"
2139 - open the flood gates on this port, i.e. forward all unicast frames to this
2141 .BR proxy_arp " and " proxy_arp_wifi
2144 .BR proxy_arp " { " on " | " off " }"
2145 - enable proxy ARP on this port.
2147 .BR proxy_arp_wifi " { " on " | " off " }"
2148 - enable proxy ARP on this port which meets extended requirements by IEEE
2149 802.11 and Hotspot 2.0 specifications.
2151 .BI mcast_router " MULTICAST_ROUTER"
2152 - configure this port for having multicast routers attached. A port with a
2153 multicast router will receive all multicast traffic.
2157 to disable multicast routers on this port,
2159 to let the system detect the presence of of routers (this is the default),
2161 to permanently enable multicast traffic forwarding on this port or
2163 to enable multicast routers temporarily on this port, not depending on incoming
2166 .BR mcast_fast_leave " { " on " | " off " }"
2167 - this is a synonym to the
2171 .BR mcast_flood " { " on " | " off " }"
2172 - controls whether a given port will be flooded with multicast traffic for which there is no MDB entry.
2174 .BI group_fwd_mask " MASK "
2175 - set the group forward mask. This is the bitmask that is applied to decide whether to forward incoming frames destined to link-local addresses, ie addresses of the form 01:80:C2:00:00:0X (defaults to 0, ie the bridge does not forward any link-local frames coming on this port).
2177 .BR neigh_suppress " { " on " | " off " }"
2178 - controls whether neigh discovery (arp and nd) proxy and suppression is enabled on the port. By default this flag is off.
2180 .BR vlan_tunnel " { " on " | " off " }"
2181 - controls whether vlan to tunnel mapping is enabled on the port. By default this flag is off.
2183 .BI backup_port " DEVICE"
2184 - if the port loses carrier all traffic will be redirected to the configured backup port
2187 - removes the currently configured backup port
2192 Bonding Slave Support
2193 For a link with master
2195 the following additional arguments are supported:
2197 .B "ip link set type bond_slave"
2205 - set the slave's queue ID (a 16bit unsigned value).
2210 MACVLAN and MACVTAP Support
2211 Modify list of allowed macaddr for link in source mode.
2213 .B "ip link set type { macvlan | macvap } "
2215 .BI macaddr " " "" COMMAND " " MACADDR " ..."
2221 - add MACADDR to allowed list
2224 - replace allowed list
2227 - remove MACADDR from allowed list
2230 - flush whole allowed list
2235 .SS ip link show - display device attributes
2238 .BI dev " NAME " (default)
2240 specifies the network device to show.
2241 If this argument is omitted all devices in the default group are listed.
2246 specifies what group of devices to show.
2250 only display running interfaces.
2253 .BI master " DEVICE "
2255 specifies the master device which enslaves devices to show.
2260 speficies the VRF which enslaves devices to show.
2265 specifies the type of devices to show.
2267 Note that the type name is not checked against the list of supported types -
2268 instead it is sent as-is to the kernel. Later it is used to filter the returned
2269 interface list by comparing it with the relevant attribute in case the kernel
2270 didn't filter already. Therefore any string is accepted, but may lead to empty
2273 .SS ip link xstats - display extended statistics
2278 specifies the type of devices to display extended statistics for.
2280 .SS ip link afstats - display address-family specific statistics
2285 specifies the device to display address-family statistics for.
2287 .SS ip link help - display help
2291 specifies which help of link type to dislpay.
2295 may be a number or a string from the file
2296 .B @SYSCONFDIR@/group
2297 which can be manually filled.
2303 Shows the state of all network interfaces on the system.
2306 ip link show type bridge
2308 Shows the bridge devices.
2311 ip link show type vlan
2313 Shows the vlan devices.
2316 ip link show master br0
2318 Shows devices enslaved by br0
2321 ip link set dev ppp0 mtu 1400
2323 Change the MTU the ppp0 device.
2326 ip link add link eth0 name eth0.10 type vlan id 10
2328 Creates a new vlan device eth0.10 on device eth0.
2331 ip link delete dev eth0.10
2333 Removes vlan device.
2338 Display help for the gre link type.
2341 ip link add name tun1 type ipip remote 192.168.1.1
2342 local 192.168.1.2 ttl 225 encap gue encap-sport auto
2343 encap-dport 5555 encap-csum encap-remcsum
2345 Creates an IPIP that is encapsulated with Generic UDP Encapsulation,
2346 and the outer UDP checksum and remote checksum offload are enabled.
2349 ip link set dev eth0 xdp obj prog.o
2351 Attaches a XDP/BPF program to device eth0, where the program is
2352 located in prog.o, section "prog" (default section). In case a
2353 XDP/BPF program is already attached, throw an error.
2356 ip -force link set dev eth0 xdp obj prog.o sec foo
2358 Attaches a XDP/BPF program to device eth0, where the program is
2359 located in prog.o, section "foo". In case a XDP/BPF program is
2360 already attached, it will be overridden by the new one.
2363 ip -force link set dev eth0 xdp pinned /sys/fs/bpf/foo
2365 Attaches a XDP/BPF program to device eth0, where the program was
2366 previously pinned as an object node into BPF file system under
2370 ip link set dev eth0 xdp off
2372 If a XDP/BPF program is attached on device eth0, detach it and
2373 effectively turn off XDP for device eth0.
2376 ip link add link wpan0 lowpan0 type lowpan
2378 Creates a 6LoWPAN interface named lowpan0 on the underlying
2379 IEEE 802.15.4 device wpan0.
2382 ip link add dev ip6erspan11 type ip6erspan seq key 102
2383 local fc00:100::2 remote fc00:100::1
2384 erspan_ver 2 erspan_dir ingress erspan_hwid 17
2386 Creates a IP6ERSPAN version 2 interface named ip6erspan00.
2397 Original Manpage by Michail Litvak <mci@owl.openwall.com>