AD users now showing

[Sullivan, P. <Pat...@Ce...>]

Here is the code:
use Net::LDAP;
$ldap = Net::LDAP->new('invdc01.cent.org') or die "Failed to connect";
$ldap->bind() or die "failed to bind";
$mesg = $ldap->search (
	sizelimit => 0,
	attrs  => ['dn'],
	base   => 'DC=CORP,DC=Cent,DC=ORG',
      scope  => 'sub',
	filter => "(objectclass=top)",
	) or die "failed to search" ;
foreach $entry ($mesg->all_entries) { $entry->dump; }
$ldap->unbind;


All I get back are computer accounts not a single user.
I have also tried:
	filter => "(&(objectCategory=person)(objectClass=user))",
but I get nothing back.

Any ideas?

Thank you,

Patrick Sullivan