"-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:

"-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).

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

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