SNMP::Info::Layer3::NetSNMP - SNMP Interface to L3 Net-SNMP Devices
Bradley Baetz and Bill Fenner
# Let SNMP::Info determine the correct subclass for you. my $netsnmp = new SNMP::Info( AutoSpecify => 1, Debug => 1, DestHost => 'myrouter', Community => 'public', Version => 2 ) or die "Can't connect to DestHost.\n";
my $class = $netsnmp->class(); print "SNMP::Info determined this device to fall under subclass : $class\n";
Subclass for Generic Net-SNMP devices
See the SNMP::Info::Layer3 manpage for its own MIB requirements.
These are methods that return scalar value from SNMP
vendor()
Returns 'Net-SNMP'.
os()
Returns the OS extracted from sysDescr
.
os_ver()
Returns the software version extracted from sysDescr
, along
with the Net-SNMP version.
uptime()
Returns the system uptime instead of the agent uptime. NOTE: discontinuity timers and other Time Stamp based objects are based on agent uptime, so use orig_uptime().
serial()
Returns ''.
See documentation in the SNMP::Info::Layer3 manpage for details.
These are methods that return tables of information in the form of a reference to a hash.
i_ignore()
Returns reference to hash. Increments value of IID if port is to be ignored.
Ignores loopback
See documentation in the SNMP::Info::Layer3 manpage for details.
In order to cause SNMP::Info to classify your device into this class, it may be necessary to put a configuration line into your snmpd.conf similar to
sysobjectid .1.3.6.1.4.1.8072.3.2.N
where N is the object ID for your OS from the NET-SNMP-TC
MIB (or
255 if not listed). Some Net-SNMP installations default to an
incorrect return value for system.sysObjectId
.
In order to recognize a Net-SNMP device as Layer3, it may be necessary to put a configuration line similar to
sysservices 76
in your snmpd.conf.