It seems to work fine for me. When I run your example, it produces this output:

Login Server (portal30_sso)


default: cn description objectclass
nooptions: cn description objectclass
PORTAL30_SSO
PORTAL30_SSO
portal30_sso

default: sn cn userpassword objectclass
nooptions: sn cn userpassword objectclass
PORTAL30_SSO_ADMIN
PORTAL30_SSO_ADMIN
portal30_sso_admin

default: sn cn userpassword objectclass
nooptions: sn cn userpassword objectclass
PORTAL30
PORTAL30
portal30

default: sn cn userpassword objectclass
nooptions: sn cn userpassword objectclass
PORTAL30_ADMIN
PORTAL30_ADMIN
portal30_admin

default: sn cn userpassword objectclass
nooptions: sn cn userpassword objectclass
PUBLIC
PUBLIC
public

default: sn cn userpassword objectclass
nooptions: sn cn userpassword objectclass
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