---
name: "rtrd"
section: "8"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["openbsd"]
url: "https://new.carta.tech/rtrd"
---

# rtrd(8)

RPKI-to-Router (RTR) daemon

## NAME

**rtrd** – RPKI-to-Router (RTR) daemon

## SYNOPSIS

**rtrd** \[**-fvV**\] \[**-b** *bind\_address*\] \[**-m** *max\_version*\] \[**-p** *port*\] \[**-s** *socket*\]

## DESCRIPTION

The **rtrd** daemon is an RPKI-to-Router (RTR) cache server. The **rtrd** program supports RTR protocol versions 0, 1, and 2.

The options are as follows:

- **-b** *bind\_address*

  Use *bind\_address* as the listener address for connections from clients. The default *bind\_address* is ‘0.0.0.0’.

- **-f**

  Remain in foreground.

- **-m** *max\_version*

  Use *max\_version* as the maximum supported version in protocol version negotiation. The default protocol is version 2.

- **-p** *port*

  Listen on *port* for client connections. The default port is 323.

- **-s** *socket*

  Use *socket* instead of the default */var/run/rtrd.sock* for communication with [rtrctl(8)](/rtrctl/8.md).

- **-v**

  Increase verbosity.

- **-V**

  Display version and exit.

## FILES

- */var/run/rtrd.sock*

  Unix-domain socket used for communication with [rtrctl(8)](/rtrctl/8.md).

## EXIT STATUS

The **rtrd** utility exits 0 on success, and \>0 if an error occurs.

## SEE ALSO

[bgpd.conf(5)](/bgpd.conf/5.md), [bgpd(8)](/bgpd/8.md), [rpki-client(8)](/rpki-client/8.md), [rtrctl(8)](/rtrctl/8.md)

## STANDARDS

*RPKI to Router Protocol*, RFC 6810.

*RPKI to Router Protocol, Version 1*, RFC 8210.

*RPKI to Router Protocol, Version 2*, Aug, 2026, https://datatracker.ietf.org/doc/html/draft-ietf-sidrops-8210bis-27.

## HISTORY

The **rtrd** daemon first appeared in OpenBSD 8.0.

## AUTHORS

Ralph Covelli ⟨*rcovelli@he.net*⟩ and Job Snijders ⟨*job@bsd.nl*⟩.