1 .\" $NetBSD: ethers.5,v 1.8 2001/06/19 12:34:27 wiz Exp $
3 .\" Written by Roland McGrath <roland@frob.com>. Public domain.
10 .Nd Ethernet host name data base
14 file maps Ethernet MAC addresses to host names.
15 Lines consist of an address and a host name, separated by any number
16 of blanks and/or tab characters.
19 character indicates the beginning of a comment;
20 characters up to the end of
21 the line are not interpreted by routines which search the file.
26 .Dl ethernet-MAC-address hostname-or-IP
28 Ethernet MAC addresses are expressed as six hexadecimal numbers separated
29 by colons, e.g. "08:00:20:00:5a:bc".
30 The functions described in
34 can read and produce this format.
36 The traditional use of
38 involved using hostnames for the second argument.
39 This may not be suitable for machines that don't have a common MAC
40 address for all interfaces (i.e., just about every non
43 There should be no problem in using an IP address as the second field
44 if you wish to differentiate between different interfaces on a system.
46 .Bl -tag -width /etc/ethers -compact
58 file format was adopted from
63 A name server should be used instead of a static file.