#!/usr/bin/perl -w
use strict;
use Net::SNMP;

my ($session, $error) = Net::SNMP->session(
  -hostname  => shift || '1.2.3.4',
  -community => shift || 'passwd',
  -port      => shift || 6
);

if (!defined($session)) {
  printf("Session ERROR: %s.\n", $error);
  exit 1;
}

#my $octets_out = '1.3.6.1.2.1.1.3.0';
my $octets_out = 'interfaces.ifTable.ifEntry.ifOutOctets';

my $result = $session->get_request(
  -varbindlist => [$octets_out]
);

if (!defined($result)) {
  printf("get_req ERROR: %s.\n", $session->error);
  $session->close;
  exit 1;
}

printf("octets_out for host '%s' is %s\n",
  $session->hostname, $result->{$octets_out}
);

$session->close;