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RADVD   (8) manpage
RADVD
8
29 Mar 2001
radvd 0.9.1
  • NAME
      radvd - router advertisement daemon for IPv6
  • SYNOPSIS
      radvd [ -vh ] [ -d debuglevel ] [ -C configfile ] [ -p pidfile ] [ -m logmethod ] [ -l logfile ] [ -f facility ] [ -t chrootdir ] [ -u username ]
  • DESCRIPTION
      radvd is the router advertisement daemon for IPv6. It listens to router solicitations and sends router advertisements as described in "Neighbor Discovery for IP Version 6 (IPv6)" (RFC 2461). With these advertisements hosts can automatically configure their addresses and some other parameters. They also can choose a default router based on these advertisements.
      Note that if debugging is not enabled, radvd will not start if IPv6 forwarding is disabled.  IPv6 forwarding can be controlled via sysctl(8) , net.ipv6.conf.all.forwarding on Linux or net.inet6.ip6.forwarding on BSD.
      Similarly, the configuration file must not be writable by others, and if non-root operation is requested, not even by self/own group.
  • OPTIONS

      For every one character option there is also a long option, which is listed right next to the "short" option name:
      "-v" , " --version"
      Displays the version of radvd and then aborts.
      "-h" , " --help"
      Displays a short usage description and then aborts.
      "-d " debuglevel, " --debug " debuglevel
      With this option you turn on debugging information. The debugging level is an integer in the range from 1 to 5, from  quiet to very verbose. A debugging level of 0 completely turns off debugging. If a debugging level greater than 0 is used, radvd doesn't background itself on start. The default debugging level is 0.
      "-C " configfile, " --config " configfile
      Specifies an alternate config file. Normally the compiled in default /etc/radvd.conf is used.
      "-p " pidfile, " --pidfile " pidfile
      Specifies an alternate pidfile. Normally the compiled in default /var/run/radvd/radvd.pid is used.
      "-m " method, " --logmethod " method
      Specifies the logging method to use. Possibly values are:
      none
      Completely disables any logging.
      logfile
      Logs to the logfile which is specified by the -l option. If no logfile is specified on the command line, then a compiled in default is used (see next option).
      stderr
      Logs to standard error.
      stderr_syslog
      Logs only the high messages (of at least LOG_ERR priority) to standard error, and everything to syslog (default method).
      syslog
      Logs to syslog.


      "-l " logfile, " --logfile " logfile
      Specifies the logfile to use when using the logging method logfile . The default logfile is /var/log/radvd.log .
      "-f " facility, " --facility " facility
      Specifies the facility (as an integer) when using syslog logging. Default is LOG_DAEMON.
      "-t " chrootdir, " --chrootdir " chrootdir
      If specified, switches to chrootdir before doing anything else.  This directory and its subdirectories must have been populated first. For security reasons, -u must always be used when using chrootdir .
      Note that on Linux radvd requires access to the /proc filesystem, so it is more challenging to set up the chroot environment.
      "-u " username, " --username " username
      If specified, drops root privileges and changes user ID to username and group ID to the primary group of username . This is recommended for security reasons. You might also need to use -p to point to a file in a username -writable directory (e.g. /var/run/radvd/radvd.pid).
  • FILES 

      
/usr/sbin/radvd
/etc/radvd.conf
/var/run/radvd/radvd.pid
/var/log/radvd.log
  • BUGS

      There certainly are some bugs. If you find them or have other suggestions please contact Pekka Savola <pekkas@netcore.fi>.
  • SEE ALSO
  • AUTHORS 

      
Pedro Roque	<roque@di.fc.ul.pt>	- wrote first version for Linux
Lars Fenneberg	<lf@elemental.net>	- previous maintainer
Nathan Lutchansky	<lutchann@litech.org>	- previous maintainer
Pekka Savola	<pekkas@netcore.fi>	- current maintainer
Craig Metz	<cmetz@inner.net>	- port to NRL's IPv6 code for BSD4.4
Marko Myllynen	<myllynen@lut.fi>	- RFC 2461 update, Mobile IPv6 support
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