---
name: "rrenumd"
section: "8"
platform: "freebsd"
package: "base"
version: "16.0-CURRENT-20261027-61c70dc16a79"
release: "FreeBSD 16.0-CURRENT (2026-10-27)"
platforms: ["freebsd"]
url: "https://new.carta.tech/rrenumd"
---

# rrenumd(8)

router renumbering daemon

## NAME

**rrenumd** – router renumbering daemon

## SYNOPSIS

**rrenumd** \[**-df**\]\[ **-c** *conf\_file* \| **-s**\]

## DESCRIPTION

The **rrenumd** utility transmits router renumbering request packets, to renumber the routers in the site network.

On KAME-based systems, router renumbering requests are received and processed by [rtadvd(8)](/rtadvd/8.md). For other systems, refer to relevant documents.

The program will daemonize itself on invocation. It reads configuration information from standard input if **-s** is specified, or from *conf\_file* if **-c** *conf\_file* is specified.

The contents of configuration information are described in [rrenumd.conf(5)](/rrenumd.conf/5.md).

After successful configuration, **rrenumd** sends router renumbering messages periodically to configured destinations. Messages contain prefixes configured to be renumbered.

- **-d**

  Debug mode.

- **-f**

  Foreground mode. Do not become daemon.

- **-s**

  Script mode. Configuration information is obtained from standard input.

- **-c** *conf\_file*

  Specify a configuration file where configuration information is kept.

## EXIT STATUS

The program exits with 0 on success, and non-zero on failures.

## SEE ALSO

[rrenumd.conf(5)](/rrenumd.conf/5.md), [rtadvd(8)](/rtadvd/8.md)

## STANDARDS

Matt Crawford, *Router Renumbering for IPv6*, RFC, 2894, August 2000.

## HISTORY

The **rrenumd** utility first appeared in KAME IPv6 protocol stack kit.