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 activ-
ity 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 gener-
ated 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 Re-
search Group, University of California, Berkeley, CA.
The current version is available via anonymous ftp:
Please send bug reports to email@example.com.
Attempts are made to suppress DECnet flip flops but they aren’t always
4th Berkeley Distribution 17 September 2000 ARPSNMP(8)
Man(1) output converted with