Manual Reference Pages  - avahi-autoipd (8)

NAME

avahi-autoipd - IPv4LL network address configuration daemon

CONTENTS

Synopsis
Description
Options
Files
Signals
Authors
See Also
Comments

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 reannounce 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 priviliges 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 sucessfully 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 it’s 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, SIGQUIT: avahi-autoipd will shutdown. (Same as --kill)

SIGHUP: avahi-autoipd will reannounce 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)

COMMENTS

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


Manuals avahi-autoipd (8) User
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