NAME

       bihourly - track ethernet/ip address pairs

SYNOPSIS

       bihourly

DESCRIPTION

       bihourly is a script that automates the operation of arpsnmp(8) by executing arpfetch(8) on a series of
       hostnames and then sending the results to arpsnmp(8) for analysis.

       The result is a report of the current pairings between ip addresses and the corresponding ethernet
       address of the network hardware as reported by snmpwalk(8).  Activity is logged and noted changes are
       reported by email.

       In its working directory bihourly expects a file named list which contains a space separated list of
       hostnames to be queried and a file named cname which holds the SNMP community name by which to query
       these hosts.

       Contrary to the name, bihourly does not run twice every hour. It runs once each time it is invoked. For
       repeated operation bihourly must be invoked on a periodic basis by a program like cron(1).

FILES

       /var/lib/arpwatch - default working directory
       list - file containing names of hosts to query
       cname - file containing the SNMP community name by which to query

SEE ALSO

       arpsnmp(8), arpfetch(8), snmpwalk(8), cron(8)

BUGS

       Please send bug reports to arpwatch@ee.lbl.gov.

AUTHORS

       Craig  Leres  of the Lawrence Berkeley National Laboratory Network Research Group, University of Califor‐
       nia, Berkeley, CA.

       The current version is available via anonymous ftp:

              ftp://ftp.ee.lbl.gov/arpwatch.tar.gz

       This manual page was contributed by Hugo Graumann.

                                                                                                     BIHOURLY(8)