arpsnmp

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



NAME
       arpsnmp - keep track of ethernet/ip address pairings

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

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

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

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

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:

              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)