arpsnmp ‐ keep track of ethernet/ip address pairings arpsnmp [ ‐d ] [ ‐f datafile ] [ ‐m email ] file [ ... ] Arpsnmp keeps track for ethernet/ip address pairings. It syslogs activity and reports certain changes via email. Arpsnmp reads information from a file (usually generated by The ‐d flag is used enable debugging. This also inhibits mailing the reports. Instead, they are sent to The ‐f flag is used to set the ethernet/ip address database filename. The default is The ‐m flag specifies the address that will receive the emails. The default is Note that an empty arp.dat file must be created before the first time you run (See the man page for details on the report messages generated by /usr/operator/arpwatch ‐ default directory arp.dat ‐ ethernet/ip address database ethercodes.dat ‐ vendor ethernet block list 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 Please send bug reports to firstname.lastname@example.org. Attempts are made to suppress DECnet flip flops but they aren’t always successful.