marto's dead right on this. I've installed, and used SNMP in the past, and you're going to need to make adjustments regarding your kernel on this. I should also note; part of the reason for this, is that SNMP can be a bit of a security hazard, if not setup carefully. Which is why it doesn't simply work, right off the bat. Most kernels are configured to be as secure as possible. While still offering as much as possible.
Best wishes.
--Chris
#!/usr/bin/perl -Tw
use Perl::Always or die;
my $perl_version = (5.12.5);
print $perl_version;