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bihourly: track ethernet/ip address pairs

bihourly - track ethernet/ip address pairs




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).


/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


arpsnmp(8), arpfetch(8), snmpwalk(8), cron(8)
Please send bug reports to arpwatch@ee.lbl.gov.
Craig Leres of the Lawrence Berkeley National Laboratory Network Research Group, University of California, 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)

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