1ARPSNMP(8)                  System Manager's Manual                 ARPSNMP(8)
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NAME

6       arpsnmp - keep track of ethernet/ip address pairings
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SYNOPSIS

9       arpsnmp  [  -d ] [ -f datafile ] [ -e username ] [ -s username ] file [
10       ...  ]
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DESCRIPTION

13       Arpsnmp keeps track for ethernet/ip address pairings. It syslogs activ‐
14       ity  and  reports certain changes via email.  Arpsnmp reads information
15       from a file (usually generated by snmpwalk(1)).
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17       The -d flag is used enable debugging. This also  inhibits  mailing  the
18       reports.  Instead, they are sent to stderr.
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20       The  -f  flag is used to set the ethernet/ip address database filename.
21       The default is arp.dat.
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23       Note that an empty arp.dat file must be created before the  first  time
24       you run arpsnmp.
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26       If  the  -e  flag  is  used,  arpsnmp sends e-mail messages to username
27       rather than the default (root).  If a single `-' character is given for
28       the  username,  sending of e-mail is suppressed, but logging via syslog
29       is still done as usual.  (This can be useful during  initial  runs,  to
30       collect data without being flooded with messages about new stations.)
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32       If  the -s flag is used, arpsnmp sends e-mail messages with username as
33       the return address, rather than the default (root).
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REPORT MESSAGES

36       (See the arpwatch(8) man page for details on the report messages gener‐
37       ated by arpsnmp(8).)
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FILES

40       /var/lib/arpwatch - default directory
41       arp.dat - ethernet/ip address database
42       ethercodes.dat - vendor ethernet block list
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SEE ALSO

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

48       Craig  Leres  of  the Lawrence Berkeley National Laboratory Network Re‐
49       search Group, University of California, Berkeley, CA.
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51       The current version is available via anonymous ftp:
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53              ftp://ftp.ee.lbl.gov/arpwatch.tar.gz
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BUGS

56       Please send bug reports to arpwatch@ee.lbl.gov.
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58       Attempts are made to suppress DECnet flip flops but they aren't  always
59       successful.
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634th Berkeley Distribution      17 September 2000                    ARPSNMP(8)
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