ip-ntable(8)

ip-ntable8

Neighbour table configuration

Usage

ip [OPTIONS] ntable {COMMAND | help}

ip ntable change name NAME [dev DEV] [thresh1 VAL] [thresh2 VAL] [thresh3 VAL] [gc_int MSEC] [base_reachable MSEC] [retrans MSEC] [gc_stale MSEC] [delay_probe MSEC] [queue LEN] [app_probes VAL] [ucast_probes VAL] [mcast_probes VAL] [mcast_reprobes VAL] [anycast_delay MSEC] [proxy_delay MSEC] [proxy_queue LEN] [locktime MSEC]

ip ntable show [dev DEV] [name NAME]

Overview

ip ntable controls the parameters for the neighbour tables.

ip ntable show - list the ip neighbour tables

This commands displays neighbour table parameters and statistics.

dev DEV

only list the table attached to this device.

name NAME

only lists the table with the given name.

ip ntable change - modify table parameter

This command allows modifying table parameters such as timers and queue lengths.

name NAME

the name of the table to modify.

dev DEV

the name of the device to modify the table values.

Examples

ip ntable show dev eth0

Shows the neighbour table (IPv4 ARP and IPv6 ndisc) parameters on device eth0.

ip ntable change name arp_cache queue 8 dev eth0

Changes the number of packets queued while address is being resolved from the default value (3) to 8 packets.

Releases

8 releases since Debian 7 (Wheezy); the text changed 2 times.

  1. 7–8
  2. 9–13
  3. Arch

Author

Manpage by Stephen Hemminger

From iproute2 7.3.0-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.