Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
RDISC6(8)		    System Manager's Manual		     RDISC6(8)

NAME
       rdisc - ICMPv6 Router Discovery tool

SYNOPSIS
       rdisc6  [-qv]  [-r attempts] [-s	source_ip] [-w wait_ms]	[IPv6 address]
       <iface>

DESCRIPTON
       RDisc6 is an Unix program which implements the ICMPv6 Router  Discovery
       in  userland  (it is normally done by the kernel). It is	used to	lookup
       the list	of on-link routers and IPv6 prefixes.

       It can also be used to force the	kernel to update the state of a	 given
       IPv6-autoconfigured network interface.

       The  name  of the network interface to probe routers for	must be	speci-
       fied.

OPTIONS
       -1 or --single
	      Exit as soon as the first	advertisement is received.

       -h or --help
	      Display some help	and exit.

       -m or --multiple
	      Wait for possible	multiple advertisements	and print all of  them
	      (default).

       -n or --numeric
	      If  the  optional	 parameter is not a valid IPv6 address,	do not
	      try to resolve it	as a DNS hostname.

       -q or --quiet
	      Only display advertised IPv6 prefixes. Display nothing  in  case
	      of failure.  That	is mostly useful when calling the program from
	      a	shell script.

       -r attempts or --retry attempts
	      Send ICMPv6 Router Discovery that	many times until  a  reply  is
	      received,	 or  abort. By default,	rdisc6 will try	3 times	before
	      aborting (MAX_RTR_SOLICITATIONS from RFC2461).

       -s source_ip or --source	source_ip
	      Specify the IPv6 address to be used as the source	for the	router
	      solicitation packets.

       -V or --version
	      Display program version and license and exit.

       -v or --verbose
	      Display verbose information. That	is the default.

       -w wait_ms or --wait wait_ms
	      Wait  wait_ms  milliseconds  for a response before retrying.  By
	      default, rdisc6 waits 4 second between each attempts (RTR_SOLIC-
	      ITATION_INTERVAL from RFC2461).

       If  rdisc6  does	not receive any	response after the specified number of
       attempts	waiting	for wait_ms milliseconds each time, it will exit  with
       code  2.	 On error, it exits with code 1.  Otherwise it exits with code
       0.

SECURITY
       rdisc6 must be setuid root to allow use by  non	privileged  users.  It
       will drop its root privileges before any	attempt	is made	to send	or re-
       ceive data from the network to reduce the possible impact of a security
       vulnerability.

SEE ALSO
       ndisc6(8), ipv6(7)

AUTHOR
       Remi Denis-Courmont <remi at remlab dot net>

       http://www.remlab.net/ndisc6/

rdisc6				    $Date$			     RDISC6(8)

NAME | SYNOPSIS | DESCRIPTON | OPTIONS | SECURITY | SEE ALSO | AUTHOR

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=rdisc6&sektion=8&manpath=FreeBSD+13.0-RELEASE+and+Ports>

home | help