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
       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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