ARPSNMP(8) - Linux man page online | Administration and privileged commands

Keep track of ethernet/ip address pairings.

17 September 2000
ARPSNMP(8) System Manager's Manual ARPSNMP(8)


arpsnmp - keep track of ethernet/ip address pairings


arpsnmp [ -d ] [ -f datafile ] [ -s sendmail_path ] [ -m addr ] file [ ... ]


Arpsnmp keeps track for ethernet/ip address pairings. It syslogs activity and reports cer‐ tain changes via email. Arpsnmp reads information from a file (usually generated by snmp‐ walk(8)). The -d flag is used enable debugging. This also inhibits mailing the reports. Instead, they are sent to stderr. The -f flag is used to set the ethernet/ip address database filename. The default is arp.dat. (Debian) The -s flag is used to specify the path to the sendmail program. Any program that takes the option -odi and then text from stdin can be substituted. This is useful for redirecting reports to log files instead of mail. (Debian) The -m option is used to specify the e-mail address to which reports will be sent. By default, reports are sent to root on the local machine. Note that an empty arp.dat file must be created before the first time you run arpsnmp.


(See the arpwatch(1) man page for details on the report messages generated by arpsnmp(1).)


/var/lib/arpwatch - default directory IFNAME.dat - ethernet/ip address database observed on interface IFNAME ethercodes.db - vendor ethernet block list


arpwatch(8), snmpwalk(8), arp(8)


Craig Leres of the Lawrence Berkeley National Laboratory Network Research Group, Universi‐ ty of California, Berkeley, CA. The current version is available via anonymous ftp:


Please send bug reports to Attempts are made to suppress DECnet flip flops but they aren't always successful.
4th Berkeley Distribution 17 September 2000 ARPSNMP(8)
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arpsnmp(8) referred by arpfetch(8) | arpwatch(8) | bihourly(8) | massagevendor(8)
refer to arp(8) | arpwatch(8)
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