---
name: "ndptool"
section: "8"
platform: "linux"
package: "libndp"
version: "1.9-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/ndptool"
---

# ndptool(8)

Neighbor Discovery Protocol tool

## NAME

ndptool — Neighbor Discovery Protocol tool

## SYNOPSIS

**ndptool** **-h**

- **ndptool \[OPTIONS\] COMMAND**

  - ndptool is a tool which provides wrapper over Neighbor Discovery Protocol

  ## DESCRIPTION

messages.

## OPTIONS

- **-h, --help**

  Print help text to console and exit.

- **-v, --verbose**

  Increase output verbosity.

- **-t type, --msg-type type**

  Specified message type. Following are supported:

  **rs** - Router Solicitation.

  **ra** - Router Advertisement.

  **ns** - Neighbor Solicitation.

  **na** - Neighbor Advertisement.

- **-i ifname, --ifname ifname**

  Specified interface name.

- **-D dest, --dest dest**

  Specified dest address in IPv6 header for NS/NA message.

- **-T target, --target target**

  Specified target address in ICMPv6 header for NS/NA message.

- **-U, --unsolicited**

  Send Unsolicited NA.

## COMMAND

- **monitor**

  Monitor incoming NDP messages and print them out.

- **send**

  Send NDP message of specified type.

## AUTHOR

Jiri Pirko is the original author and current maintainer of libndp.