Family `rt-neigh` netlink specification ¶

Contents

Summary ¶

IP neighbour management over rtnetlink.

Operations ¶

newneigh ¶

Add new neighbour entry

fixed-header

ndmsg

attribute-set

neighbour-attrs

do

request

attributes: [dst, lladdr, probes, vlan, port, vni, ifindex, master, protocol, nh-id, flags-ext, fdb-ext-attrs]

delneigh ¶

Remove an existing neighbour entry

fixed-header

ndmsg

attribute-set

neighbour-attrs

do

request

attributes: [dst, ifindex]

delneigh-ntf ¶

Notify a neighbour deletion

value: 29
notify: getneigh
fixed-header: ndmsg

getneigh ¶

Get or dump neighbour entries

fixed-header

ndmsg

attribute-set

neighbour-attrs

do

request

attributes: [dst]

reply

attributes: [dst, lladdr, probes, vlan, port, vni, ifindex, master, protocol, nh-id, flags-ext, fdb-ext-attrs]

dump

request

attributes: [ifindex, master]

reply

attributes: [dst, lladdr, probes, vlan, port, vni, ifindex, master, protocol, nh-id, flags-ext, fdb-ext-attrs]

newneigh-ntf ¶

Notify a neighbour creation

value: 28
notify: getneigh
fixed-header: ndmsg

getneightbl ¶

Get or dump neighbour tables

fixed-header

ndtmsg

attribute-set

ndt-attrs

dump

request

reply

attributes: [name, thresh1, thresh2, thresh3, config, parms, stats, gc-interval]

setneightbl ¶

Set neighbour tables

fixed-header

ndtmsg

attribute-set

ndt-attrs

do

request

attributes: [name, thresh1, thresh2, thresh3, parms, gc-interval]

Multicast groups ¶

rtnlgrp-neigh

Definitions ¶

ndmsg ¶

type

struct

members

ndm-family (u8)
ndm-pad (pad)
ndm-ifindex (s32)
ndm-state (u16)
ndm-flags (u8)
ndm-type (u8)

ndtmsg ¶

type

struct

members

family (u8)

nud-state ¶

type

flags

enum-name

None

entries

incomplete
reachable
stale
delay
probe
failed
noarp
permanent

ntf-flags ¶

type

flags

enum-name

None

entries

use
self
master
proxy
ext-learned
offloaded
sticky
router

ntf-ext-flags ¶

type

flags

enum-name

None

entries

managed
locked
ext-validated

rtm-type ¶

type

enum

enum-name

None

entries

unspec
unicast
local
broadcast
anycast
multicast
blackhole
unreachable
prohibit
throw
nat
xresolve

nda-cacheinfo ¶

type

struct

members

confirmed (u32)
used (u32)
updated (u32)
refcnt (u32)

ndt-config ¶

type

struct

members

key-len (u16)
entry-size (u16)
entries (u32)
last-flush (u32)
last-rand (u32)
hash-rnd (u32)
hash-mask (u32)
hash-chain-gc (u32)
proxy-qlen (u32)

ndt-stats ¶

type

struct

members

allocs (u64)
destroys (u64)
hash-grows (u64)
res-failed (u64)
lookups (u64)
hits (u64)
rcv-probes-mcast (u64)
rcv-probes-ucast (u64)
periodic-gc-runs (u64)
forced-gc-runs (u64)
table-fulls (u64)

Attribute sets ¶

neighbour-attrs ¶

unspec (`binary`)¶

value: 0

dst (`binary`)¶

display-hint: ipv4-or-v6

lladdr (`binary`)¶

display-hint: mac

cacheinfo (`binary`)¶

struct: nda-cacheinfo

probes (`u32`)¶

vlan (`u16`)¶

port (`u16`)¶

vni (`u32`)¶

ifindex (`u32`)¶

master (`u32`)¶

link-netnsid (`s32`)¶

src-vni (`u32`)¶

protocol (`u8`)¶

nh-id (`u32`)¶

fdb-ext-attrs (`binary`)¶

flags-ext (`u32`)¶

enum: ntf-ext-flags

ndm-state-mask (`u16`)¶

ndm-flags-mask (`u8`)¶

ndt-attrs ¶

name (`string`)¶

thresh1 (`u32`)¶

thresh2 (`u32`)¶

thresh3 (`u32`)¶

config (`binary`)¶

struct: ndt-config

parms (`nest`)¶

nested-attributes: ndtpa-attrs

stats (`binary`)¶

struct: ndt-stats

unspec (binary)¶

dst (binary)¶

lladdr (binary)¶

cacheinfo (binary)¶

probes (u32)¶

vlan (u16)¶

port (u16)¶

vni (u32)¶

ifindex (u32)¶

master (u32)¶

link-netnsid (s32)¶

src-vni (u32)¶

protocol (u8)¶

nh-id (u32)¶

fdb-ext-attrs (binary)¶

flags-ext (u32)¶

ndm-state-mask (u16)¶

ndm-flags-mask (u8)¶

name (string)¶

thresh1 (u32)¶

thresh2 (u32)¶

thresh3 (u32)¶

config (binary)¶

parms (nest)¶

stats (binary)¶

gc-interval (u64)¶

pad (pad)¶

ifindex (u32)¶

refcnt (u32)¶

reachable-time (u64)¶

base-reachable-time (u64)¶

retrans-time (u64)¶

gc-staletime (u64)¶

delay-probe-time (u64)¶

queue-len (u32)¶

app-probes (u32)¶

ucast-probes (u32)¶

mcast-probes (u32)¶

anycast-delay (u64)¶

proxy-delay (u64)¶

proxy-qlen (u32)¶

locktime (u64)¶

queue-lenbytes (u32)¶

mcast-reprobes (u32)¶

pad (pad)¶

interval-probe-time-ms (u64)¶

unspec (`binary`)¶

dst (`binary`)¶

lladdr (`binary`)¶

cacheinfo (`binary`)¶

probes (`u32`)¶

vlan (`u16`)¶

port (`u16`)¶

vni (`u32`)¶

ifindex (`u32`)¶

master (`u32`)¶

link-netnsid (`s32`)¶

src-vni (`u32`)¶

protocol (`u8`)¶

nh-id (`u32`)¶

fdb-ext-attrs (`binary`)¶

flags-ext (`u32`)¶

ndm-state-mask (`u16`)¶

ndm-flags-mask (`u8`)¶

name (`string`)¶

thresh1 (`u32`)¶

thresh2 (`u32`)¶

thresh3 (`u32`)¶

config (`binary`)¶

parms (`nest`)¶

stats (`binary`)¶

gc-interval (`u64`)¶

pad (`pad`)¶

ifindex (`u32`)¶

refcnt (`u32`)¶

reachable-time (`u64`)¶

base-reachable-time (`u64`)¶

retrans-time (`u64`)¶

gc-staletime (`u64`)¶

delay-probe-time (`u64`)¶

queue-len (`u32`)¶

app-probes (`u32`)¶

ucast-probes (`u32`)¶

mcast-probes (`u32`)¶

anycast-delay (`u64`)¶

proxy-delay (`u64`)¶

proxy-qlen (`u32`)¶

locktime (`u64`)¶

queue-lenbytes (`u32`)¶

mcast-reprobes (`u32`)¶

pad (`pad`)¶

interval-probe-time-ms (`u64`)¶