SNMP Network Auditor is a small collection of Perl
scripts that can be used to scan an arbitrary set
of networks, defined in a configuration file, and
identify any nodes which are running an SNMP
service on a user-specified UDP port (default 161)
with a user-specified community string (default
public). The results of the scan can be saved in a
text file and/or in a formatted HTML report. The
report is broken down by network, and includes the
system.sysDescr.0 attribute returned by each
detected node.