Thanks and ++ to danger and chipmunk for pointing out my blind spot: second $ in $mib{$key}   Working code snippet below (tweaked a bit more).
    cheers,
    Don
    striving toward Perl Adept
    (it's pronounced "why-bick") 
#! /usr/bin/perl -w

# netsnmpTinker.pl
# ybiC   2001-05-18   13:30
# derived from Net::SNMP example1.pl
# online MIB browser at http://www.ibr.cs.tu-bs.de/cgi-bin/sbrowser.cg
+i

use strict;
use Net::SNMP;
use Tie::IxHash;

my %snmp;
($snmp{session}, $snmp{error}) = Net::SNMP->session(
   -hostname  => shift || 'localhost',
   -community => shift || 'public',
   -port      => shift || 161,
   );
tie my %mib, "Tie::IxHash";
%mib = (
   # sysDescr    => '1.3.6.1.2.1.1.1.0',
   sysUpTime   => '1.3.6.1.2.1.1.3.0',
   sysContact  => '1.3.6.1.2.1.1.4.0',
   sysName     => '1.3.6.1.2.1.1.5.0',
   sysLocation => '1.3.6.1.2.1.1.6.0',
   ifNumber    => '1.3.6.1.2.1.2.1.0',
   cdpAddress  => '1.3.6.1.4.1.9.9.23.1.2.1.1.4',
   cdpDeviceID => '1.3.6.1.4.1.9.9.23.1.2.1.1.6',
   cdpHWtype   => '1.3.6.1.4.1.9.9.23.1.2.1.1.8',
   );


unless (defined($snmp{session})) {
   printf(" Error: %s.\n", $snmp{error});
   exit 1;
   }

printf("\n Host = %s\n", $snmp{session} ->hostname());
for(keys %mib) {
   if (defined($snmp{response} = $snmp{session}->get_request($mib{$_})
+)) {
      printf(" $_ = %s\n", $snmp{response}->{$mib{$_}});
      }
   else { print " $_ = not responding\n"}
   }
$snmp{session}->close();
print "\n";


exit 0;

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In reply to Re:(2) uninit value, Tie::IxHash, Net::SNMP (thanks, working snippet) by ybiC
in thread uninitialized value with Tie::IxHash and Net::SNMP by ybiC

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