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SunOS man pages : in.rarpd (1)

Maintenance Commands                                 in.rarpd(1M)

NAME

in.rarpd, rarpd - DARPA Reverse Address Resolution Protocol server

SYNOPSIS

/usr/sbin/in.rarpd [ -d ] -a /usr/sbin/in.rarpd [ -d ] device unit

DESCRIPTION

in.rarpd starts a daemon that responds to Reverse Address Resolution Protocol (RARP) requests. The daemon forks a copy of itself that runs in background. It must be run as root. RARP is used by machines at boot time to discover their Internet Protocol (IP) address. The booting machine provides its Ethernet address in a RARP request message. Using the ethers and hosts databases, in.rarpd maps this Ethernet address into the corresponding IP address which it returns to the booting machine in an RARP reply message. The boot- ing machine must be listed in both databases for in.rarpd to locate its IP address. in.rarpd issues no reply when it fails to locate an IP address. in.rarpd uses the STREAMS-based Data Link Provider Inter- face (DLPI) message set to communicate directly with the datalink device driver.

OPTIONS

The following options are supported: -a Get the list of available network interfaces from IP using the SIOCGIFADDR ioctl and start a RARP daemon process on each interface returned. -d Print assorted debugging messages while execut- ing.

EXAMPLES

Example 1: Starting An in.rarpd Daemon For Each Network Interface Name Returned From /dev/ip: The following command starts an in.rarpd for each network interface name returned from /dev/ip: example# /usr/sbin/in.rarpd -a Example 2: Starting An in.rarpd Daemon On The Device /dev/le With The Device Instance Number 0 SunOS 5.8 Last change: 14 Sep 1992 1 Maintenance Commands in.rarpd(1M) The following command starts one in.rarpd on the device /dev/le with the device instance number 0. example# /usr/sbin/in.rarpd le 0

FILES

/etc/ethers File or other source, as specified by nsswitch.conf(4). /etc/hosts File or other source, as specified by nsswitch.conf(4). /tftpboot /dev/ip /dev/arp

ATTRIBUTES

See attributes(5) for descriptions of the following attri- butes: ____________________________________________________________ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | |_____________________________|_____________________________| | Availability | SUNWcsu | |_____________________________|_____________________________|

SEE ALSO

boot(1M), ifconfig(1M), ethers(4), hosts(4), netconfig(4), nsswitch.conf(4),attributes (5), dlpi(7P) Finlayson, R., Mann, T., Mogul, J., and Theimer, M., RFC 903, A Reverse Address Resolution Protocol, Network Informa- tion Center, SRI International, June 1984. Unix International, Data Link Provider Interface, Version 2, May 7, 1991, Sun Microsystems, 800-6915-01. SunOS 5.8 Last change: 14 Sep 1992 2