I have been having trouble getting the perl mib agent examples going. Does not
seem to register the OID. Below I include a) test-mib.pl, b) snmpd.conf, c)
output from 'snmpd' cmd, d) output from good 'snmpget' and f) failed 'snmpget'
on new OID.
Any suggestions?
Thanks,
Bob Cole
===========================================
test-mib.pl:
===========================================
use NetSNMP::OID (':all');
use NetSNMP::agent (':all');
sub myhandler {
my ($handler, $registration_info, $request_info, $requests) = @_;
my $request;
for($request = $requests; $request; $request = $request->next()) {
my $oid = $request->getOID();
if ($request_info->getMode() == MODE_GET) {
# ... generally, you would calculate value from oid
if ($oid == new
NetSNMP::OID(".1.3.6.1.4.1.8072.9999.9999.7375.1.0")) {
$request->setValue(ASN_OCTET_STR, "hello world!");
}
} elsif ($request_info->getMode() == MODE_GETNEXT) {
# ... generally, you would calculate value from oid
if ($oid < new
NetSNMP::OID(".1.3.6.1.4.1.8072.9999.9999.7375.1.0")) {
$request->setOID(".1.3.6.1.4.1.8072.9999.9999.7375.1.0");
$request->setValue(ASN_OCTET_STR, "hello world!");
}
}
#elsif ($request_info->getMode() == MODE_SET_RESERVE1) {
# if ($oid != new
NetSNMP::OID(".1.3.6.1.4.1.8072.9999.9999.7375.1.0")) {
# do error checking here
# $request->setError($request_info, SNMP_ERR_NOSUCHNAME);
# }
#} elsif ($request_info->getMode() == MODE_SET_ACTION) {
# ... (or use the value)
# $value = $request->getValue();
#}
}
}
#
# Associate the handler with a particular OID tree
#
my $rootOID = ".1.3.6.1.4.1.8072.9999.9999.7375";
my $regoid = new NetSNMP::OID($rootOID);
$agent->register("Bob Net-SNMP Agen", $regoid, \&myhandler);
print STDERR "Loaded the Bob example perl snmpagent handler\n";
===========================================
snmpd.conf:
===========================================
###########################################################################
#
# snmpd.conf
#
# - created by the snmpconf configuration program
#
###########################################################################
# SECTION: System Information Setup
#
# This section defines some of the information reported in
# the "system" mib group in the mibII tree.
# syslocation: The [typically physical] location of the system.
# Note that setting this value here means that when trying to
# perform an snmp SET operation to the sysLocation.0 variable will make
# the agent return the "notWritable" error code. IE, including
# this token in the snmpd.conf file will disable write access to
# the variable.
# arguments: location_string
syslocation rgc_laptop
# syscontact: The contact information for the administrator
# Note that setting this value here means that when trying to
# perform an snmp SET operation to the sysContact.0 variable will make
# the agent return the "notWritable" error code. IE, including
# this token in the snmpd.conf file will disable write access to
# the variable.
# arguments: contact_string
syscontact [email protected]
# sysservices: The proper value for the sysServices object.
# arguments: sysservices_number
sysservices 0
###########################################################################
# SECTION: Access Control Setup
#
# This section defines who is allowed to talk to your running
# snmp agent.
# rwuser: a SNMPv3 read-write user
# arguments: user [noauth|auth|priv] [restriction_oid]
rwuser localhost noauth
# rouser: a SNMPv3 read-only user
# arguments: user [noauth|auth|priv] [restriction_oid]
rouser localhost noauth
# rocommunity: a SNMPv1/SNMPv2c read-only access community name
# arguments: community [default|hostname|network/bits] [oid]
rocommunity public
# rwcommunity: a SNMPv1/SNMPv2c read-write access community name
# arguments: community [default|hostname|network/bits] [oid]
rwcommunity public
#####
#
# Embedded perl MIB support here
#
#####
#perl print "\nStarting up the snmpd agent!\n\n";
perl do "/home/rgc/IETF/DEVELOPMENT/TEST/test-mib.pl";
===========================================
'snmpd -DPERL' output:
===========================================
> snmpd -DPERL
No log handling enabled - turning on stderr logging
registered debug token PERL, 1
Loaded the Bob example perl snmpagent handler
r...@chapman:~/.snmp# NET-SNMP version 5.5
r...@chapman:~/.snmp# unknown var value type: 0
===========================================
'snmpget -v 2c -c public 127.0.0.1 sysUpTime.0' output:
===========================================
> snmpget -v 2c -c public 127.0.0.1 sysUpTime.0
DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (1929) 0:00:19.29
===========================================
'snmpget -v 2c -c public 127.0.0.1 .1.3.6.1.4.1.8072.9999.9999.7375.1.0'
output:
===========================================
> snmpget -v 2c -c public 127.0.0.1 .1.3.6.1.4.1.8072.9999.9999.7375.1.0
NET-SNMP-MIB::netSnmpPlaypen.7375.1.0 = No Such Instance currently exists at
this OID
===========================================
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