Content-type: text/html Man page of ethers

ethers

Section: Devices and Network Interfaces (4)
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NAME

ethers - Database that maps Ethernet addresses to hostnames  

DESCRIPTION

The /etc/ethers file is used in conjunction with the reverse address resolution protocol daemon (rarpd) to map Ethernet addresses to hostnames. It contains information about the known (48-bit) Ethernet addresses of hosts on the Internet.

For each host on an Ethernet, a single line should be present in the file with the following information:

Ethernet-address official-host-name

Items are separated by one or more spaces or tabs. A number sign (#) indicates the beginning of a comment that extends to the end of line.

The standard form for Ethernet addresses is:

x:x:x:x:x:x

The x is a hexadecimal number between 0 and ff, representing 1 byte. The address bytes are always in network order.

Hostnames can contain any printable character other than a space, tab, newline, or number sign (#).

Hostnames in the /etc/ethers file should correspond to the hostnames in the /etc/hosts file or to those provided by the name service.  

EXAMPLES

The following is a sample ethers file:

08:00:20:01:e5:1c host1 # Comments go here 08:00:20:01:d0:4c host2 # Comments go here 08:00:20:01:e0:1d host3 # Comments go here 08:00:20:00:c2:4e host4 # Comments go here

 

RELATED INFORMATION

Commands: rarpd(8)

Files: hosts(4), packetfilter(7)

Routines: ethers(3) delim off


 

Index

NAME
DESCRIPTION
EXAMPLES
RELATED INFORMATION

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Time: 02:40:06 GMT, October 02, 2010