Radvd

Last updated
radvd
Developer(s) Reuben Hawkins, Robin Johnson
Initial release1996;29 years ago (1996)
Stable release
2.20 / December 31, 2024;54 days ago (2024-12-31)
Preview release
2.20-rc1 / November 17, 2023;15 months ago (2023-11-17)
Repository
Written in C
Platform Linux and BSD
Available inEnglish
License BSD-style vanity [1]
Website radvd

The Router Advertisement Daemon (radvd) is an open-source software product that implements link-local advertisements of IPv6 router addresses and IPv6 routing prefixes using the Neighbor Discovery Protocol (NDP) as specified in RFC   2461. [2]

Contents

Daemon

The Router Advertisement Daemon is used by system administrators in stateless autoconfiguration ( RFC   4862. [3] ) methods of network hosts on Internet Protocol version 6 networks.

When IPv6 hosts configure their network interface controllers, they multicast router solicitation (RS) requests onto the network to discover available routers. Radvd answers requests with router advertisement (RA) messages. In addition, radvd periodically multicasts RA packets to the attached link to update network hosts. The router advertisement messages contain the routing prefix used on the link, the link maximum transmission unit (MTU), and the address of the responsible default router.

Radvd also supports the recursive DNS server (RDNSS) and DNS search list (DNSSL) options for NDP published in RFC   6106. [4]

See also

References

  1. ↑ Pekka Savola on radvd-devel-l mailing list
  2. ↑ RFC   2461, Neighbor Discovery for IP Version 6 (IPv6), T. Narten, E. Nordmark, W. Simpson (December 1998)
  3. ↑ RFC   4862, IPv6 Stateless Address Autoconfiguration, S. Thomson, T. Narten, T. Jinmei (September 2007)
  4. ↑ RFC   6106, IPv6 Router Advertisement Options for DNS Configuration, J. Jeong (Ed.), S. Park, L. Beloeil, S. Madanapalli (November 2010)
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