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avahi-autoipd(8)


NAME

   avahi-autoipd - IPv4LL network address configuration daemon

SYNOPSIS

   avahi-autoipd [options] interface

   avahi-autoipd --kill interface

   avahi-autoipd --refresh interface

   avahi-autoipd --check interface

DESCRIPTION

   avahi-autoipd  implements  IPv4LL, "Dynamic Configuration of IPv4 Link-
   Local Addresses" (IETF RFC3927), a protocol for  automatic  IP  address
   configuration from the link-local 169.254.0.0/16 range without the need
   for a central server. It is primarily intended to  be  used  in  ad-hoc
   networks which lack a DHCP server.

   IPv4LL is part of the Zeroconf stack.

   avahi-autoipd can be used as stand-alone address allocator or as plugin
   for a DHCP client such as ISC's dhclient,  where  it  can  be  used  as
   fallback solution if no DHCP server is found.

   To  allow  communication between hosts that have only an IPv4LL address
   assigned and hosts that only have a routable IP  address  assigned  you
   may add the following routes to both network configurations:

   route add -net 169.254.0.0 netmask 255.255.0.0 dev eth0 metric 99

   route add default dev eth0 metric 99

   See     http://developer.apple.com/qa/qa2004/qa1357.html    for    more
   information.

OPTIONS

   -D | --daemonize
          Daemonize after startup. Implies --syslog.

   -k | --kill
          Kill an already running avahi-autoipd on the  specified  network
          interface. (Equivalent to sending a SIGTERM)

   -r | --refresh
          Tell   an  already  running  avahi-autoipd  to  re-announce  the
          acquired  IP  address  on  the  specified   network   interface.
          (Equivalent to sending a SIGHUP)

   -c | --check
          Return  0 as return code if avahi-autoipd is already running for
          the specified network interface.

   -s | --syslog
          Log to syslog instead of STDERR. Implied by --daemonize.

   --debug
          Enable verbose mode.

   --no-drop-root
          Don't drop root privileges after startup. We  recommend  not  to
          use this option.

   --no-chroot
          Don't  chroot(2)  the daemon. This option is only available when
          compiled with chroot() support.

   -S | --start=
          Try to acquire the specified IP address, which must be from  the
          IPv4LL range 169.254.0.0/16.

   -w | --wait
          Wait  until  a  IP address has been successfully acquired before
          detaching. Only valid in combination with --daemonize.

   --force-bind
          Acquire an IPv4LL address, even if a routable address  has  been
          configured on the interface.

   --no-proc-title
          Don't  change the process name while running. Unless this option
          is specified avahi-autoipd will reflect its  current  state  and
          the IP address in the process title.

   -h | --help
          Show help.

   -v | --version
          Show version information.

FILES

   /etc/avahi/avahi-autoipd.action:  the  script to run when an IP address
   as been acquired or is lost.

SIGNALS

   SIGINT, SIGTERM: avahi-autoipd will shutdown. (Same as --kill)

   SIGHUP: avahi-autoipd will re-announce the acquired IP  address.  (Same
   as --refresh)

AUTHORS

   The  Avahi  Developers  <avahi (at) lists (dot) freedesktop (dot) org>;
   Avahi is available from http://avahi.org/

SEE ALSO

   autoipd.action(8), dhclient(8)

   http://avahi.org/wiki/AvahiAutoipd documents how avahi-autoipd is  best
   packaged and integrated into distributions.

COMMENTS

   This man page was written using xml2man(1) by Oliver Kurth.



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