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 California, Berkeley, CA.
The current version is available via anonymous ftp:
This manual page was contributed by Hugo Graumann.