avahi-autoipd(8)

1avahi-autoipd(8)            System Manager's Manual           avahi-autoipd(8)
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NAME

6       avahi-autoipd - IPv4LL network address configuration daemon
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SYNOPSIS

9       avahi-autoipd [options] interface
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11       avahi-autoipd --kill interface
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13       avahi-autoipd --refresh interface
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15       avahi-autoipd --check interface
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DESCRIPTION

18       avahi-autoipd  implements  IPv4LL, "Dynamic Configuration of IPv4 Link-
19       Local Addresses" (IETF RFC3927), a protocol for  automatic  IP  address
20       configuration from the link-local 169.254.0.0/16 range without the need
21       for a central server. It is primarily intended to  be  used  in  ad-hoc
22       networks which lack a DHCP server.
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24       IPv4LL is part of the Zeroconf stack.
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26       avahi-autoipd can be used as stand-alone address allocator or as plugin
27       for a DHCP client such as ISC's dhclient, where it can be used as fall‐
28       back solution if no DHCP server is found.
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30       To  allow  communication between hosts that have only an IPv4LL address
31       assigned and hosts that only have a routable IP  address  assigned  you
32       may add the following routes to both network configurations:
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34       route add -net 169.254.0.0 netmask 255.255.0.0 dev eth0 metric 99
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36       route add default dev eth0 metric 99
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38       See  http://developer.apple.com/qa/qa2004/qa1357.html for more informa‐
39       tion.
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OPTIONS

42       -D | --daemonize
43              Daemonize after startup. Implies --syslog.
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45       -k | --kill
46              Kill an already running avahi-autoipd on the  specified  network
47              interface. (Equivalent to sending a SIGTERM)
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49       -r | --refresh
50              Tell   an  already  running  avahi-autoipd  to  re-announce  the
51              acquired IP address on the specified network interface. (Equiva‐
52              lent to sending a SIGHUP)
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54       -c | --check
55              Return  0 as return code if avahi-autoipd is already running for
56              the specified network interface.
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58       -s | --syslog
59              Log to syslog instead of STDERR. Implied by --daemonize.
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61       --debug
62              Enable verbose mode.
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64       --no-drop-root
65              Don't drop root privileges after startup. We  recommend  not  to
66              use this option.
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68       --no-chroot
69              Don't  chroot(2)  the daemon. This option is only available when
70              compiled with chroot() support.
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72       -S | --start=
73              Try to acquire the specified IP address, which must be from  the
74              IPv4LL range 169.254.0.0/16.
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76       -w | --wait
77              Wait  until  a  IP address has been successfully acquired before
78              detaching. Only valid in combination with --daemonize.
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80       --force-bind
81              Acquire an IPv4LL address, even if a routable address  has  been
82              configured on the interface.
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84       -t | --script
85              Action    script   to   run   (defaults   to   /etc/avahi/avahi-
86              autoipd.action). See autoipd.action(8) for more details.
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88       --no-proc-title
89              Don't change the process name while running. Unless this  option
90              is  specified  avahi-autoipd  will reflect its current state and
91              the IP address in the process title.
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93       -h | --help
94              Show help.
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96       -V | --version
97              Show version information.
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FILES

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

104       SIGINT, SIGTERM: avahi-autoipd will shutdown. (Same as --kill)
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106       SIGHUP:  avahi-autoipd  will re-announce the acquired IP address. (Same
107       as --refresh)
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AUTHORS

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

120       This man page was written using xml2man(1) by Oliver Kurth.
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124Manuals                              User                     avahi-autoipd(8)