avahi-autoipd(8) 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 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 User avahi-autoipd(8)
