#! /usr/bin/perl

   use strict;

   use Net::SNMP qw(:snmp);

   my ($session, $error) = Net::SNMP->session(
      -version     => 'snmpv2c',
      -nonblocking => 1,
      -hostname    => '192.168.1.1',
      -community   => 'public',
      -port        => 161
   );

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

   my $ifTable = '.1.3.6.1.2.1.2.2.1.2';

   my $result = $session->get_bulk_request(
      -callback       => [\&table_cb, {}],
      -maxrepetitions => 10,
      -varbindlist    => [$ifTable]
   );

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

   snmp_dispatcher();

sub table_cb
   {
      my ($session) = @_;
      my $table;

      if (!defined($session->var_bind_list)) {
         printf("ERROR: %s\n", $session->error);
      }
      else {
         my $next;
         foreach my $oid (oid_lex_sort(keys %{$session->var_bind_list}))        {              
               if (!oid_base_match($ifTable, $oid)) {                                           
               $next = undef;
               last;
            }
            $next = $oid;                                                    
            $table->{$oid} = $session->var_bind_list->{$oid};            
       }                                                         
        foreach my $oid (oid_lex_sort(keys(%{$table}))) {
               printf("%s => %s\n", $oid, $table->{$oid});
            }
      }
   }