nd6hostd(8)						      System Manager's Manual						       nd6hostd(8)

NAME

       nd6hostd - Neighbor discovery and autoconfiguration daemon for IPv6 hosts

SYNOPSIS

       /usr/sbin/nd6hostd [-d] [-D] [-l logfile] [-u] [-n name]

OPTIONS

       Enables	additional  debugging  information,  such as bad packets received, to be logged.  The nd6hostd daemon remains under control of the
       host that started it; therefore, an interrupt from the controlling host stops the nd6hostd process.  Same as the -d option,  but  does  not
       run  as	a  daemon.  Specifies a log file into which nd6hostd writes information about its actions.  The log contains information about any
       changes to the routing tables and a history of recent route change messages sent and received that are related to changed routes.   Enables
       dynamic updates to the Domain Name System (DNS) database.  Specifies a fully qualified domain name to use for dynamic DNS updates.

DESCRIPTION

       The  nd6hostd daemon receives and processes IPv6 Router Advertisement (RA) packets of the Neighbor Discovery Protocol.  This enables a sys-
       tem to autoconfigure itself without manual intervention.

       The daemon performs the following functions, based on the contents of IPv6 Router Advertisements it receives: Router discovery - Learns the
       IPv6  address  of  default routers and installs default routes in the kernel routing table.  On-link prefix discovery - Learns IPv6 on-link
       prefixes (ranges of IPv6 addresses that are directly reachable on a given link).  Stateless Address Configuration -  Automatically  creates
       and  deletes  interface addresses.  If the -u option is specified, nd6hostd updates the address information in the DNS automatically, using
       the name specified with the -n option (or the host name if the the -n option is not specified).	Interface attribute configuration -  Auto-
       matically configures datalink attributes such as hop limit, reachable time, retransmit time and link mtu.

   Signals
       The  following  signals	have  the  specified effect when sent to the nd6hostd process using the kill(1) command: Displays internal routing
       tables.	Terminates nd6hostd.  Before exiting, nd6hostd removes any system state that was autoconfigured, including  default  routers,  on-
       link prefixes, IPv6 addresses, and dynamically updated DNS entries.

									      Note

	      Do not use SIGKILL to terminate nd6hostd.

RESTRICTIONS

       Do not run the nd6hostd and ip6rtrd daemons on the same host, as this may produce unpredictable results.

FILES

       Specifies the command path Routes through distant and external gateways Contains the network name database

SEE ALSO

       Commands: route(8).

       Daemons: ip6rtrd(8).

       RFC 2461, Neighbor Discovery for IP version 6 (IPv6); Narten, T., Nordmark, E., Simpson W. A., December 1998

       RFC 2462, IPv6 Stateless Address Autoconfiguration; Thompson, S., Narten, T., December 1998

																       nd6hostd(8)