ARPSNMP(8)                  System Manager's Manual                 ARPSNMP(8)

       arpsnmp - keep track of ethernet/ip address pairings

       arpsnmp [ -d ] [ -f datafile ] [ -e username ] [ -s username ] 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 snmpwalk(1)).

       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.

       Note that an empty arp.dat file must be created before the first time
       you run arpsnmp.

       If the -e flag is used, arpsnmp sends e-mail messages to username
       rather than the default (root).  If a single `-' character is given for
       the username, sending of e-mail is suppressed, but logging via syslog
       is still done as usual.  (This can be useful during initial runs, to
       collect data without being flooded with messages about new stations.)

       If the -s flag is used, arpsnmp sends e-mail messages with username as
       the return address, rather than the default (root).

       (See the arpwatch(8) man page for details on the report messages
       generated by arpsnmp(8).)

       /var/arpwatch - default directory
       arp.dat - ethernet/ip address database
       ethercodes.dat - vendor ethernet block list

       arpwatch(8), snmpwalk(1), arp(8)

       Craig Leres of the Lawrence Berkeley National Laboratory Network
       Research Group, University 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

4th Berkeley Distribution      17 September 2000                    ARPSNMP(8)