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       rdisc - ICMPv6 Router Discovery tool


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


       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


       -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

       -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).

       -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_SOLICITATION_INTERVAL from RFC2461).


       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
       receive  data  from  the  network  to  reduce  the possible impact of a
       security vulnerability.


       ndisc6(8), ipv6(7)


       RĂ©mi Denis-Courmont <rdenis at>

       $Id: rdisc6.8 483 2007-08-08 15:09:36Z remi $