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ip6rtrd(8)							   ip6rtrd(8)



NAME

  ip6rtrd - IPv6 routing daemon

SYNOPSIS

  /usr/sbin/ip6rtrd [-dD] [-l logfile] [configfile]

OPTIONS

  -d  Enables additional debugging information,	such as	bad packets received,
      to be logged.  The ip6rtrd daemon	remains	under control of the host
      that started it; therefore, an interrupt from the	controlling host
      stops the	ip6rtrd	process.

  -D  Same as the -d option, but does not run as a daemon.

  -l logfile
      Specifies	a log file into	which ip6rtrd writes information about its
      actions.	The log	contains information about any changes to the routing
      tables and a history of recent route change messages sent	and received
      that are related to changed routes.  If you do not specify a log file,
      information is logged to stdout.

DESCRIPTION

  The ip6rtrd daemon sends IPv6	Router Advertisement (RA) packets of the
  Neighbor Discovery Protocol.	These packets enable any listening host	to
  autoconfigure	itself without manual intervention.  In	addition, you can
  configure ip6rtrd to send and	process	RIPng messages.

  At startup, the ip6rtrd daemon reads its default configuration file for
  startup information.	If you used ip6_setup to configure IPv6	on your	sys-
  tem, the configuration file is /etc/ip6rtrd.conf.  You can specify an
  alternate configuration file by using	the configfile parameter.

  Signals


  The following	signals	have the specified effect when sent to the ip6rtrd
  process using	the kill(1) command:

  SIGUSR1
      Displays internal	routing	tables.	 If a log file is specified, the
      routing information is logged to it.

  SIGTERM
      Terminates the ip6rtrd process.  Before exiting, the daemon removes any
      system state that	was configured by the daemon, including	default
      routers and on-link prefixes.  In	addition, the daemon broadcasts	RIPng
      packets with hop counts set to infinity over the appropriate inter-
      faces.








				      Caution

	 Do not	use SIGKILL to terminate the ip6rtrd process, as this may
	 leave the system's IPv6 configuration in an inconsistent state.



RESTRICTIONS

  Do not run the nd6hostd and ip6rtrd daemons on the same host as this may
  produce unpredictable	results.

SEE ALSO

  Commands: ifconfig(8), ip6_setup(8).

  Daemons: nd6hostd(8).

  Files: ip6rtrd.conf(4).

  RFC 2461, Neighbor Discovery for IP version 6	(IPv6),	Narten,	T.; Nordmark,
  E., Simpson W. A., December 1998

  RFC 2462, IPv6 Stateless Address Autoconfiguration, Thompson,	S.; Narten,
  T., December 1998

  RFC 2080, RIPng for IPv6,  Malkin, G., Minnear, R., January 1997.