Routing Netlink

The rtnl module provides functions for interacting with the routing netlink interface.

Functions can be individually imported and directly accessed using the named import syntax:

import { error, request, listener, RTM_GETROUTE, RTM_NEWROUTE, RTM_DELROUTE, AF_INET } from 'rtnl';

// Send a netlink request
let response = request(RTM_GETROUTE, 0, { family: AF_INET });

// Create a listener for route changes
let routeListener = listener((msg) => {
    print('Received route message:', msg, '\n');
}, [RTM_NEWROUTE, RTM_DELROUTE]);

Alternatively, the module namespace can be imported using a wildcard import statement:

import * as rtnl from 'rtnl';

// Send a netlink request
let response = rtnl.request(rtnl.RTM_GETROUTE, 0, { family: rtnl.AF_INET });

// Create a listener for route changes
let listener = rtnl.listener((msg) => {
    print('Received route message:', msg, '\n');
}, [rtnl.RTM_NEWROUTE, rtnl.RTM_DELROUTE]);

Additionally, the rtnl module namespace may also be imported by invoking the ucode interpreter with the -lrtnl switch.

Source: lib/rtnl.c, line 17

Classes

rtnl.listener

Represents a netlink listener resource.

Methods

error() → {string}nullable

Query error information.

Returns a string containing a description of the last occurred error or null if there is no error information.

Returns: string

Example

// Trigger rtnl error
request('invalid_command', {}, {});

// Print error (should yield error description)
print(error(), "\n");

Source: lib/rtnl.c, line 3293

listener(callback, commandsopt, groupsopt) → {listener}

Create a netlink listener.

Creates a new netlink listener that will receive messages matching the specified commands and multicast groups.

Parameters:

Name	Type	Description
`callback`	function	The callback function to invoke when a message is received
`commands`	string[]	(optional) Array of netlink commands to listen for (optional)
`groups`	number[]	(optional) Array of multicast groups to join (optional)

Returns: listener

A listener object with methods to control the listener

Example

// Create a listener for route changes
let routeListener = listener((msg) => {
    print('Received route message:', msg, '\n');
}, [RTM_NEWROUTE, RTM_DELROUTE]);

Source: lib/rtnl.c, line 3786

request(cmd, flags, payload) → {*}nullable

Send a netlink request.

Sends a netlink request with the specified command, flags, and payload.

Parameters:

Name	Type	Description
`cmd`	string	The netlink command to send
`flags`	number	The netlink flags for the request
`payload`	*	The payload data for the request

Returns: *

The response data or null on error

Example

// Send a route request
let response = request('RTM_GETROUTE', 0, { family: AF_INET });

Source: lib/rtnl.c, line 3425

Type Definitions

Address families

Properties

Name	Type	Description
`AF_UNSPEC`	number	Unspecified address family
`AF_INET`	number	IPv4 address family
`AF_INET6`	number	IPv6 address family
`AF_MPLS`	number	MPLS address family
`AF_BRIDGE`	number	Bridge address family

Source: lib/rtnl.c, line 4539

Address flags

Properties

Name	Type	Description
`IFA_F_DADFAILED`	number	DAD failed
`IFA_F_DEPRECATED`	number	Deprecated
`IFA_F_HOMEADDRESS`	number	Home address
`IFA_F_MANAGETEMPADDR`	number	Manage temporary address
`IFA_F_MCAUTOJOIN`	number	Multicast auto join
`IFA_F_NODAD`	number	No DAD
`IFA_F_NOPREFIXROUTE`	number	No prefix route
`IFA_F_OPTIMISTIC`	number	Optimistic
`IFA_F_PERMANENT`	number	Permanent
`IFA_F_SECONDARY`	number	Secondary
`IFA_F_STABLE_PRIVACY`	number	Stable privacy
`IFA_F_TEMPORARY`	number	Temporary
`IFA_F_TENTATIVE`	number	Tentative

Source: lib/rtnl.c, line 4660

Bridge VLAN information flags

Properties

Name	Type	Description
`BRIDGE_VLAN_INFO_MASTER`	number	Master VLAN info
`BRIDGE_VLAN_INFO_PVID`	number	Primary VLAN ID
`BRIDGE_VLAN_INFO_UNTAGGED`	number	Untagged VLAN
`BRIDGE_VLAN_INFO_RANGE_BEGIN`	number	Range begin
`BRIDGE_VLAN_INFO_RANGE_END`	number	Range end
`BRIDGE_VLAN_INFO_BRENTRY`	number	Bridge entry

Source: lib/rtnl.c, line 4758

Bridge flags

Properties

Name	Type	Description
`BRIDGE_FLAGS_MASTER`	number	Master flag
`BRIDGE_FLAGS_SELF`	number	Self flag

Source: lib/rtnl.c, line 4734

Bridge modes

Properties

Name	Type	Description
`BRIDGE_MODE_VEB`	number	Virtual Ethernet Bridge mode
`BRIDGE_MODE_VEPA`	number	Virtual Ethernet Port Aggregator mode
`BRIDGE_MODE_UNDEF`	number	Undefined mode
`BRIDGE_MODE_UNSPEC`	number	Unspecified mode
`BRIDGE_MODE_HAIRPIN`	number	Hairpin mode

Source: lib/rtnl.c, line 4743

FDB notification bits

Properties

Name	Type	Description
`FDB_NOTIFY_BIT`	number	Notify bit
`FDB_NOTIFY_INACTIVE_BIT`	number	Inactive notify bit

Source: lib/rtnl.c, line 4190

FIB rule actions

Properties

Name	Type	Description
`FR_ACT_TO_TBL`	number	To table action
`FR_ACT_GOTO`	number	Goto action
`FR_ACT_NOP`	number	No operation action
`FR_ACT_BLACKHOLE`	number	Blackhole action
`FR_ACT_UNREACHABLE`	number	Unreachable action
`FR_ACT_PROHIBIT`	number	Prohibit action

Source: lib/rtnl.c, line 4708

FIB rule flags

Properties

Name	Type	Description
`FIB_RULE_PERMANENT`	number	Permanent rule
`FIB_RULE_INVERT`	number	Invert rule
`FIB_RULE_UNRESOLVED`	number	Unresolved rule
`FIB_RULE_IIF_DETACHED`	number	Interface detached
`FIB_RULE_DEV_DETACHED`	number	Device detached
`FIB_RULE_OIF_DETACHED`	number	Output interface detached

Source: lib/rtnl.c, line 4691

GTP roles

Properties

Name	Type	Description
`GTP_ROLE_GGSN`	number	GGSN role
`GTP_ROLE_SGSN`	number	SGSN role

Source: lib/rtnl.c, line 4088

Generic Routing Encapsulation flags

Properties

Name	Type	Description
`GRE_CSUM`	number	Checksum flag
`GRE_ROUTING`	number	Routing flag
`GRE_KEY`	number	Key flag
`GRE_SEQ`	number	Sequence flag
`GRE_STRICT`	number	Strict flag
`GRE_REC`	number	Record flag
`GRE_ACK`	number	Acknowledgment flag

Source: lib/rtnl.c, line 4554

Geneve data frame flags

Properties

Name	Type	Description
`GENEVE_DF_UNSET`	number	Data frame unset
`GENEVE_DF_SET`	number	Data frame set
`GENEVE_DF_INHERIT`	number	Data frame inherit
`GENEVE_DF_MAX`	number	Maximum data frame

Source: lib/rtnl.c, line 4075

HSR protocols

Properties

Name	Type	Description
`HSR_PROTOCOL_HSR`	number	HSR protocol
`HSR_PROTOCOL_PRP`	number	PRP protocol

Source: lib/rtnl.c, line 4155

IPVLAN modes

Properties

Name	Type	Description
`IPVLAN_MODE_L2`	number	Layer 2 mode
`IPVLAN_MODE_L3`	number	Layer 3 mode
`IPVLAN_MODE_L3S`	number	Layer 3 symmetric mode

Source: lib/rtnl.c, line 4051

IPoIB modes

Properties

Name	Type	Description
`IPOIB_MODE_DATAGRAM`	number	Datagram mode
`IPOIB_MODE_CONNECTED`	number	Connected mode

Source: lib/rtnl.c, line 4146

IPv6 address generation modes

Properties

Name	Type	Description
`IN6_ADDR_GEN_MODE_EUI64`	number	EUI-64 mode
`IN6_ADDR_GEN_MODE_NONE`	number	No mode
`IN6_ADDR_GEN_MODE_STABLE_PRIVACY`	number	Stable privacy mode
`IN6_ADDR_GEN_MODE_RANDOM`	number	Random mode

Source: lib/rtnl.c, line 3984

IPv6 tunnel flags

Properties

Name	Type	Description
`IP6_TNL_F_ALLOW_LOCAL_REMOTE`	number	Allow local remote
`IP6_TNL_F_IGN_ENCAP_LIMIT`	number	Ignore encapsulation limit
`IP6_TNL_F_MIP6_DEV`	number	Mobile IPv6 device
`IP6_TNL_F_RCV_DSCP_COPY`	number	Receive DSCP copy
`IP6_TNL_F_USE_ORIG_FLOWLABEL`	number	Use original flow label
`IP6_TNL_F_USE_ORIG_FWMARK`	number	Use original firewall mark
`IP6_TNL_F_USE_ORIG_TCLASS`	number	Use original traffic class

Source: lib/rtnl.c, line 4597

Interface flags

Properties

Name	Type	Description
`NTF_EXT_LEARNED`	number	Externally learned
`NTF_MASTER`	number	Master interface
`NTF_OFFLOADED`	number	Offloaded
`NTF_PROXY`	number	Proxy
`NTF_ROUTER`	number	Router
`NTF_SELF`	number	Self
`NTF_STICKY`	number	Sticky
`NTF_USE`	number	Use

Source: lib/rtnl.c, line 4616

Link extended statistics types

Properties

Name	Type	Description
`LINK_XSTATS_TYPE_UNSPEC`	number	Unspecified type
`LINK_XSTATS_TYPE_BRIDGE`	number	Bridge type
`LINK_XSTATS_TYPE_BOND`	number	Bond type

Source: lib/rtnl.c, line 4164

MACVLAN MAC address commands

Properties

Name	Type	Description
`MACVLAN_MACADDR_ADD`	number	Add MAC address
`MACVLAN_MACADDR_DEL`	number	Delete MAC address
`MACVLAN_MACADDR_FLUSH`	number	Flush MAC addresses
`MACVLAN_MACADDR_SET`	number	Set MAC address

Source: lib/rtnl.c, line 4012

MACVLAN modes

Properties

Name	Type	Description
`MACVLAN_MODE_PRIVATE`	number	Private mode
`MACVLAN_MODE_VEPA`	number	VEPA mode
`MACVLAN_MODE_BRIDGE`	number	Bridge mode
`MACVLAN_MODE_PASSTHRU`	number	Pass-through mode
`MACVLAN_MODE_SOURCE`	number	Source mode

Source: lib/rtnl.c, line 3997

MACsec offload modes

Properties

Name	Type	Description
`MACSEC_OFFLOAD_OFF`	number	Offload off
`MACSEC_OFFLOAD_PHY`	number	Physical offload
`MACSEC_OFFLOAD_MAC`	number	MAC offload
`MACSEC_OFFLOAD_MAX`	number	Maximum offload

Source: lib/rtnl.c, line 4038

MACsec validation levels

Properties

Name	Type	Description
`MACSEC_VALIDATE_DISABLED`	number	Disabled validation
`MACSEC_VALIDATE_CHECK`	number	Check validation
`MACSEC_VALIDATE_STRICT`	number	Strict validation
`MACSEC_VALIDATE_MAX`	number	Maximum validation

Source: lib/rtnl.c, line 4025

Multicast groups

Properties

Name	Type	Description
`RTNLGRP_NONE`	number	No group
`RTNLGRP_LINK`	number	Link group
`RTNLGRP_NOTIFY`	number	Notify group
`RTNLGRP_NEIGH`	number	Neighbor group
`RTNLGRP_TC`	number	Traffic control group
`RTNLGRP_IPV4_IFADDR`	number	IPv4 interface address group
`RTNLGRP_IPV4_MROUTE`	number	IPv4 multicast route group
`RTNLGRP_IPV4_ROUTE`	number	IPv4 route group
`RTNLGRP_IPV4_RULE`	number	IPv4 rule group
`RTNLGRP_IPV6_IFADDR`	number	IPv6 interface address group
`RTNLGRP_IPV6_MROUTE`	number	IPv6 multicast route group
`RTNLGRP_IPV6_ROUTE`	number	IPv6 route group
`RTNLGRP_IPV6_IFINFO`	number	IPv6 interface info group
`RTNLGRP_DECnet_IFADDR`	number	DECnet interface address group
`RTNLGRP_NOP2`	number	No operation 2
`RTNLGRP_DECnet_ROUTE`	number	DECnet route group
`RTNLGRP_DECnet_RULE`	number	DECnet rule group
`RTNLGRP_NOP4`	number	No operation 4
`RTNLGRP_IPV6_PREFIX`	number	IPv6 prefix group
`RTNLGRP_IPV6_RULE`	number	IPv6 rule group
`RTNLGRP_ND_USEROPT`	number	Neighbor discovery user option group
`RTNLGRP_PHONET_IFADDR`	number	Phonet interface address group
`RTNLGRP_PHONET_ROUTE`	number	Phonet route group
`RTNLGRP_DCB`	number	Data Center Bridging group
`RTNLGRP_IPV4_NETCONF`	number	IPv4 network configuration group
`RTNLGRP_IPV6_NETCONF`	number	IPv6 network configuration group
`RTNLGRP_MDB`	number	Multicast database group
`RTNLGRP_MPLS_ROUTE`	number	MPLS route group
`RTNLGRP_NSID`	number	Network namespace ID group
`RTNLGRP_MPLS_NETCONF`	number	MPLS network configuration group
`RTNLGRP_IPV4_MROUTE_R`	number	IPv4 multicast route reverse group
`RTNLGRP_IPV6_MROUTE_R`	number	IPv6 multicast route reverse group
`RTNLGRP_NEXTHOP`	number	Next hop group
`RTNLGRP_BRVLAN`	number	Bridge VLAN group

Source: lib/rtnl.c, line 4449

Neighbor discovery user option types

Properties

Name	Type	Description
`NDUSEROPT_UNSPEC`	number	Unspecified option
`NDUSEROPT_SRCADDR`	number	Source address option

Source: lib/rtnl.c, line 4440

Neighbor states

Properties

Name	Type	Description
`NUD_DELAY`	number	Delay state
`NUD_FAILED`	number	Failed state
`NUD_INCOMPLETE`	number	Incomplete state
`NUD_NOARP`	number	No ARP
`NUD_NONE`	number	No state
`NUD_PERMANENT`	number	Permanent state
`NUD_PROBE`	number	Probe state
`NUD_REACHABLE`	number	Reachable state
`NUD_STALE`	number	Stale state

Source: lib/rtnl.c, line 4637

Netlink message flags

Properties

Name	Type	Description
`NLM_F_ACK`	number	Request for acknowledgment
`NLM_F_ACK_TLVS`	number	Request for acknowledgment with TLVs
`NLM_F_APPEND`	number	Append to existing list
`NLM_F_ATOMIC`	number	Atomic operation
`NLM_F_CAPPED`	number	Request capped
`NLM_F_CREATE`	number	Create if not exists
`NLM_F_DUMP`	number	Dump request
`NLM_F_DUMP_FILTERED`	number	Dump filtered request
`NLM_F_DUMP_INTR`	number	Dump interrupted
`NLM_F_ECHO`	number	Echo request
`NLM_F_EXCL`	number	Exclusive creation
`NLM_F_MATCH`	number	Match request
`NLM_F_MULTI`	number	Multi-part message
`NLM_F_NONREC`	number	Non-recursive operation
`NLM_F_REPLACE`	number	Replace existing
`NLM_F_REQUEST`	number	Request message
`NLM_F_ROOT`	number	Root operation
`NLM_F_STRICT_CHK`	number	Strict checking

Source: lib/rtnl.c, line 3942

Network configuration indices

Properties

Name	Type	Description
`NETCONFA_IFINDEX_ALL`	number	All interfaces
`NETCONFA_IFINDEX_DEFAULT`	number	Default interface

Source: lib/rtnl.c, line 4725

Port VDP responses

Properties

Name	Type	Description
`PORT_VDP_RESPONSE_SUCCESS`	number	Success response
`PORT_VDP_RESPONSE_INVALID_FORMAT`	number	Invalid format response
`PORT_VDP_RESPONSE_INSUFFICIENT_RESOURCES`	number	Insufficient resources response
`PORT_VDP_RESPONSE_UNUSED_VTID`	number	Unused VTID response
`PORT_VDP_RESPONSE_VTID_VIOLATION`	number	VTID violation response
`PORT_VDP_RESPONSE_VTID_VERSION_VIOALTION`	number	VTID version violation response
`PORT_VDP_RESPONSE_OUT_OF_SYNC`	number	Out of sync response

Source: lib/rtnl.c, line 4110

Port profile responses

Properties

Name	Type	Description
`PORT_PROFILE_RESPONSE_SUCCESS`	number	Success response
`PORT_PROFILE_RESPONSE_INPROGRESS`	number	In progress response
`PORT_PROFILE_RESPONSE_INVALID`	number	Invalid response
`PORT_PROFILE_RESPONSE_BADSTATE`	number	Bad state response
`PORT_PROFILE_RESPONSE_INSUFFICIENT_RESOURCES`	number	Insufficient resources response
`PORT_PROFILE_RESPONSE_ERROR`	number	Error response

Source: lib/rtnl.c, line 4129

Port request types

Properties

Name	Type	Description
`PORT_REQUEST_PREASSOCIATE`	number	Pre-associate request
`PORT_REQUEST_PREASSOCIATE_RR`	number	Pre-associate round-robin request
`PORT_REQUEST_ASSOCIATE`	number	Associate request
`PORT_REQUEST_DISASSOCIATE`	number	Disassociate request

Source: lib/rtnl.c, line 4097

Prefix types

Properties

Name	Type	Description
`PREFIX_UNSPEC`	number	Unspecified prefix
`PREFIX_ADDRESS`	number	Address prefix
`PREFIX_CACHEINFO`	number	Cache info prefix

Source: lib/rtnl.c, line 4429

Route commands

Properties

Name	Type	Description
`RTM_BASE`	number	Base command
`RTM_NEWLINK`	number	New link
`RTM_DELLINK`	number	Delete link
`RTM_GETLINK`	number	Get link
`RTM_SETLINK`	number	Set link
`RTM_NEWADDR`	number	New address
`RTM_DELADDR`	number	Delete address
`RTM_GETADDR`	number	Get address
`RTM_NEWROUTE`	number	New route
`RTM_DELROUTE`	number	Delete route
`RTM_GETROUTE`	number	Get route
`RTM_NEWRULE`	number	New rule
`RTM_DELRULE`	number	Delete rule
`RTM_GETRULE`	number	Get rule
`RTM_NEWQDISC`	number	New queue discipline
`RTM_DELQDISC`	number	Delete queue discipline
`RTM_GETQDISC`	number	Get queue discipline
`RTM_NEWTCLASS`	number	New traffic class
`RTM_DELTCLASS`	number	Delete traffic class
`RTM_GETTCLASS`	number	Get traffic class
`RTM_NEWTFILTER`	number	New traffic filter
`RTM_DELTFILTER`	number	Delete traffic filter
`RTM_GETTFILTER`	number	Get traffic filter
`RTM_NEWACTION`	number	New action
`RTM_DELACTION`	number	Delete action
`RTM_GETACTION`	number	Get action
`RTM_NEWPREFIX`	number	New prefix
`RTM_GETMULTICAST`	number	Get multicast
`RTM_GETANYCAST`	number	Get anycast
`RTM_NEWNEIGHTBL`	number	New neighbor table
`RTM_GETNEIGHTBL`	number	Get neighbor table
`RTM_SETNEIGHTBL`	number	Set neighbor table
`RTM_NEWNDUSEROPT`	number	New neighbor user option
`RTM_NEWADDRLABEL`	number	New address label
`RTM_DELADDRLABEL`	number	Delete address label
`RTM_GETADDRLABEL`	number	Get address label
`RTM_GETDCB`	number	Get DCB
`RTM_SETDCB`	number	Set DCB
`RTM_NEWNETCONF`	number	New network configuration
`RTM_DELNETCONF`	number	Delete network configuration
`RTM_GETNETCONF`	number	Get network configuration
`RTM_NEWMDB`	number	New multicast database
`RTM_DELMDB`	number	Delete multicast database
`RTM_GETMDB`	number	Get multicast database
`RTM_NEWNSID`	number	New network namespace ID
`RTM_DELNSID`	number	Delete network namespace ID
`RTM_GETNSID`	number	Get network namespace ID
`RTM_NEWSTATS`	number	New statistics
`RTM_GETSTATS`	number	Get statistics
`RTM_NEWCACHEREPORT`	number	New cache report
`RTM_NEWCHAIN`	number	New chain
`RTM_DELCHAIN`	number	Delete chain
`RTM_GETCHAIN`	number	Get chain
`RTM_NEWNEXTHOP`	number	New next hop
`RTM_DELNEXTHOP`	number	Delete next hop
`RTM_GETNEXTHOP`	number	Get next hop
`RTM_NEWLINKPROP`	number	New link property
`RTM_DELLINKPROP`	number	Delete link property
`RTM_GETLINKPROP`	number	Get link property
`RTM_NEWVLAN`	number	New VLAN
`RTM_DELVLAN`	number	Delete VLAN
`RTM_GETVLAN`	number	Get VLAN

Source: lib/rtnl.c, line 4200

Route flags

Properties

Name	Type	Description
`RTM_F_CLONED`	number	Cloned route
`RTM_F_EQUALIZE`	number	Equalize route
`RTM_F_FIB_MATCH`	number	FIB match
`RTM_F_LOOKUP_TABLE`	number	Lookup table
`RTM_F_NOTIFY`	number	Notify
`RTM_F_PREFIX`	number	Prefix

Source: lib/rtnl.c, line 4522

Route metrics

Properties

Name	Type	Description
`RTAX_MTU`	number	Maximum transmission unit
`RTAX_HOPLIMIT`	number	Hop limit
`RTAX_ADVMSS`	number	Advertised MSS
`RTAX_REORDERING`	number	Reordering
`RTAX_RTT`	number	Round trip time
`RTAX_WINDOW`	number	Window size
`RTAX_CWND`	number	Congestion window
`RTAX_INITCWND`	number	Initial congestion window
`RTAX_INITRWND`	number	Initial receive window
`RTAX_FEATURES`	number	Features
`RTAX_QUICKACK`	number	Quick acknowledgment
`RTAX_CC_ALGO`	number	Congestion control algorithm
`RTAX_RTTVAR`	number	RTT variance
`RTAX_SSTHRESH`	number	Slow start threshold
`RTAX_FASTOPEN_NO_COOKIE`	number	Fast open no cookie

Source: lib/rtnl.c, line 4393

Route scopes

Properties

Name	Type	Description
`RT_SCOPE_UNIVERSE`	number	Universe scope
`RT_SCOPE_SITE`	number	Site scope
`RT_SCOPE_LINK`	number	Link scope
`RT_SCOPE_HOST`	number	Host scope
`RT_SCOPE_NOWHERE`	number	Nowhere scope

Source: lib/rtnl.c, line 4361

Route tables

Properties

Name	Type	Description
`RT_TABLE_UNSPEC`	number	Unspecified table
`RT_TABLE_COMPAT`	number	Compatibility table
`RT_TABLE_DEFAULT`	number	Default table
`RT_TABLE_MAIN`	number	Main table
`RT_TABLE_LOCAL`	number	Local table
`RT_TABLE_MAX`	number	Maximum table

Source: lib/rtnl.c, line 4376

Route types

Properties

Name	Type	Description
`RTN_UNSPEC`	number	Unspecified route
`RTN_UNICAST`	number	Unicast route
`RTN_LOCAL`	number	Local route
`RTN_BROADCAST`	number	Broadcast route
`RTN_ANYCAST`	number	Anycast route
`RTN_MULTICAST`	number	Multicast route
`RTN_BLACKHOLE`	number	Blackhole route
`RTN_UNREACHABLE`	number	Unreachable route
`RTN_PROHIBIT`	number	Prohibited route
`RTN_THROW`	number	Throw route
`RTN_NAT`	number	NAT route
`RTN_XRESOLVE`	number	External resolve route

Source: lib/rtnl.c, line 4332

Tunnel encapsulation flags

Properties

Name	Type	Description
`TUNNEL_ENCAP_FLAG_CSUM`	number	Checksum flag
`TUNNEL_ENCAP_FLAG_CSUM6`	number	IPv6 checksum flag
`TUNNEL_ENCAP_FLAG_REMCSUM`	number	Remote checksum flag

Source: lib/rtnl.c, line 4586

Tunnel encapsulation types

Properties

Name	Type	Description
`TUNNEL_ENCAP_NONE`	number	No encapsulation
`TUNNEL_ENCAP_FOU`	number	Foo over UDP
`TUNNEL_ENCAP_GUE`	number	Generic UDP Encapsulation
`TUNNEL_ENCAP_MPLS`	number	MPLS encapsulation

Source: lib/rtnl.c, line 4573

VXLAN data frame flags

Properties

Name	Type	Description
`VXLAN_DF_UNSET`	number	Data frame unset
`VXLAN_DF_SET`	number	Data frame set
`VXLAN_DF_INHERIT`	number	Data frame inherit
`VXLAN_DF_MAX`	number	Maximum data frame

Source: lib/rtnl.c, line 4062

XDP attach types

Properties

Name	Type	Description
`XDP_ATTACHED_NONE`	number	Not attached
`XDP_ATTACHED_DRV`	number	Driver attached
`XDP_ATTACHED_SKB`	number	SKB attached
`XDP_ATTACHED_HW`	number	Hardware attached
`XDP_ATTACHED_MULTI`	number	Multi attached

Source: lib/rtnl.c, line 4175