1ARPD(8)                   BSD System Manager's Manual                  ARPD(8)
2

NAME

4     farpd — ARP reply daemon
5

SYNOPSIS

7     farpd [-d] [-i interface] [net ...]
8

DESCRIPTION

10     farpd replies to any ARP request for an IP address matching the specified
11     destination net with the hardware MAC address of the specified interface,
12     but only after determining if another host already claims it.
13
14     Any IP address claimed by farpd is eventually forgotten after a period of
15     inactivity or after a hard timeout, and is relinquished if the real owner
16     shows up.
17
18     This enables a single host to claim all unassigned addresses on a LAN for
19     network monitoring or simulation.
20
21     farpd exits on an interrupt or termination signal.
22
23     The options are as follows:
24
25     -d      Do not daemonize, and enable verbose debugging messages.
26
27     -i interface
28             Listen on interface.  If unspecified, farpd searches the system
29             interface list for the lowest numbered, configured ``up'' inter‐
30             face (excluding loopback).
31
32     net     The IP address or network (specified in CIDR notation) or IP
33             address ranges to claim (e.g. ``10.0.0.3'', ``10.0.0.0/16'' or
34             ``10.0.0.5-10.0.0.15''). If unspecified, farpd will attempt to
35             claim any IP address it sees an ARP request for.  Mutiple
36             addresses may be specified.
37

FILES

39     /var/run/farpd.pid
40

SEE ALSO

42     pcapd(8), synackd(8)
43

AUTHORS

45     Dug Song ⟨dugsong@monkey.org⟩, Niels Provos ⟨provos@citi.umich.edu⟩
46
47                                August 4, 2001