MRTG as it is distributed contains several perl modules created by other
people.
The Plain Perl SNMP Code from Simon Leinen <simon@switch.ch>
SNMP_Session.pm
BER.pm
--> http://www.switch.ch/misc/leinen/snmp/perl/
The SNMP Utilities module from Mike Mitchell <Mike.Mitchell@sas.com>
SNMP_util.pm
--> this is distributed together with SNMP_Session.pm
The PodParser Module from Brad Appleton <bradapp@enteract.com>
Pod/*.pm
--> CPAN/modules/by-module/Pod/BRADAPP/ (Included with perl 5.6)
Thanks very much
tobi