NAME

       arpsnmp - keep track of ethernet/ip address pairings

SYNOPSIS

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

DESCRIPTION

       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(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.

REPORT MESSAGES

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

FILES

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

SEE ALSO

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

AUTHORS

       Craig  Leres  of the Lawrence Berkeley National Laboratory Network Research Group, University of Califor‐
       nia, Berkeley, CA.

       The current version is available via anonymous ftp:

              ftp://ftp.ee.lbl.gov/arpwatch.tar.gz

BUGS

       Please send bug reports to arpwatch@ee.lbl.gov.

       Attempts are made to suppress DECnet flip flops but they aren't always successful.

4th Berkeley Distribution                       17 September 2000                                     ARPSNMP(8)