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rarpd (8)
  • >> rarpd (8) ( FreeBSD man: Команды системного администрирования )
  • rarpd (8) ( Русские man: Команды системного администрирования )
  • rarpd (8) ( Linux man: Команды системного администрирования )

  • BSD mandoc
     

    NAME

    
    
    rarpd
    
     - reverse ARP daemon
    
     
    

    SYNOPSIS

    -a [-dfsv ] [-t directory ]
    [-dfsv ] [-t directory ] interface  

    DESCRIPTION

    The utility services Reverse ARP requests on the Ethernet connected to interface Upon receiving a request, 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.

    By default, a request is honored only if the server (i.e., the host that is running on) can "boot" the target; that is, a file or directory matching the glob /tftpboot/ipaddr* exists, where ipaddr is the target IP address in hex. For example, the IP address 204.216.27.18 will be replied to if any of /tftpboot/CCD81B12 /tftpboot/CCD81B12.SUN3 or /tftpboot/CCD81B12-boot exist. This requirement can be overridden with the -s flag (see below).

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

    The following options are available:

    -a
    Listen on all the Ethernets attached to the system. If -a is omitted, an interface must be specified.
    -d
    If -f is also specified, logs messages to stdout and stderr instead of via syslog(3).
    -f
    Run in the foreground.
    -s
    Supply a response to any RARP request for which an ethernet to IP address mapping exists; do not depend on the existence of /tftpboot/ipaddr*
    -t
    Supply an alternate tftp root directory to /tftpboot similar to the -s option of tftpd(8). This permits to selectively respond to RARP requests, but use an alternate directory for IP checking.
    -v
    Enable verbose syslogging.

     

    FILES

    /etc/ethers
    /etc/hosts
    /tftpboot

     

    SEE ALSO

    bpf(4)
    "Finlayson, R." "Mann, T." "Mogul, J.C." "Theimer, M." "RFC 903: Reverse Address Resolution Protocol" "June 1984" "4 p"
     

    AUTHORS

    An -nosplit An Craig Leres Aq leres@ee.lbl.gov and An Steven McCanne Aq mccanne@ee.lbl.gov . Lawrence Berkeley Laboratory, University of California, Berkeley, CA.  

    BUGS

    The utility can depend on the DNS to resolve the name discovered from /etc/ethers If this name is not in the DNS but is in /etc/hosts the DNS lookup can cause a delayed RARP response, so in this situation it is recommended to configure nsswitch.conf5 to read /etc/hosts first.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    FILES
    SEE ALSO
    AUTHORS
    BUGS


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