October 17, 2002 RARPD 8

### NAME

rarpd - Reverse ARP Daemon

### SYNOPSIS

rarpd [-adfl] [interface [...]]

### DESCRIPTION

rarpd services Reverse ARP requests on the Ethernet connected to interface. Upon receiving a request, rarpd maps the target hardware address to an IP address via its name, which must be present in both the ethers(5) and hosts(5) databases. If a host does not exist in both databases the translation cannot proceed and a reply will not be sent.

In normal operation, rarpd forks a copy of itself and runs in the background. Anomalies and errors are reported via syslog(3).

### OPTIONS

-a
  Listen on all the Ethernets attached to the system. If `-a' is omitted, an interface must be specified.

-d
  Run in debug mode, with all the output to stderr. This option implies the -f option.

-f
  Run in the foreground.

-l
  Log all requests to syslog.

### FILES

```/etc/ethers`
```/etc/hosts`

### SEE ALSO

bpf(4)

### AUTHORS

Craig Leres (leres@ee.lbl.gov) and Steven McCanne (mccanne@ee.lbl.gov). Lawrence Berkeley Laboratory, University of California, Berkeley, CA.