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RADVD(8) RADVD(8) NAME radvd - router advertisement daemon for IPv6 SYNOPSIS radvd [ -hsvc ] [ -d debuglevel ] [ -C configfile ] [ -p pidfile ] [ -m logmethod ] [ -l logfile ] [ -n nodaemon ] [ -f facility ] [ -t chrootdir ] [ -u username ] DESCRIPTION radvd is the router advertisement daemon for IPv6. It listens to router so- licitations and sends router advertisements as described in "Neighbor Dis- covery for IP Version 6 (IPv6)" (RFC 4861). With these advertisements hosts can automatically configure their addresses and some other parame- ters. It also defines "Neighbor Discovery Optimization for IPv6 over Low- Power Wireless Personal Area Networks (6LoWPANs)" (RFC6775). They also can choose a default router based on these advertisements. The configuration file must not be writable by others, and if non-root op- eration 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. -c, --configtest Test configuration and do startup tests and then exit. -n, --nodaemon Prevent the daemonizing. -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 it- self on start. The default debugging level is 0. -C configfile, --config configfile Specifies an alternate config file. Normally the compiled in default /usr/local/etc/radvd.conf is used. -p pidfile, --pidfile pidfile Specifies an alternate pidfile. Normally the compiled in default /var/run/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 ch- rootdir. 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/local/sbin/radvd /usr/local/etc/radvd.conf /var/run/radvd.pid /var/log/radvd.log BUGS There certainly are some bugs. If you find them or have other suggestions please contact Reuben Hawkins <reubenhwk@gmail.com>. SEE ALSO radvd.conf(5), radvdump(8) 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> - previous 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 Jim Paris <jim@jtan.com> - Privilege separation support Reuben Hawkins <reubenhwk@gmail.com> - previous maintainer Pierre Ossman <pierre@ossman.eu> - RFC6106 (DNSSL) support Varka Bhadram <varkabhadram@gmail.com> - 6LoWPAN-ND (RFC6775) support Robin H. Johnson <robbat2@gentoo.org> - current maintainer, RA splitting per RFC 6980 & RFC4861#6.2.3 Radek Zajic <radek@zajic.v.pytli.cz> - NAT64 pref64 support (RFC8781) Geert Stappers <stappers@stappers.it> - contributor radvd 2.20 30 Dec 2024 RADVD(8)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | FILES | BUGS | SEE ALSO | AUTHORS
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