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avahi-autoipd(8)	    System Manager's Manual	      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 fall-
       back 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  informa-
       tion.

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  ac-
	      quired  IP  address on the specified network interface. (Equiva-
	      lent 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.

Manuals				     User		      avahi-autoipd(8)

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