i believe the SNMP module is maintained within the net-snmp distribution. so the version on CPAN may not be the most recent. i usually use SNMP over Net::SNMP. because SNMP uses the same shared libraries as the net-snmp cli tools (snmp{set,get,walk,translate,...}). so if i have any problems i can debug using the cli tools and then easily convert to Perl later. SNMP also does all of the MIB translation stuff you could ever want. also if you have any problems with devices or MIBs you can duplicate the problem with the cli tools and then when you talk to the vendor you can say that you're having problems while using common tools instead of saying that you're having problems using some odd Perl module.