network encryption not working

I have been trying to set this up for my company on a test db so we can have a look, and I just cannot seem to get it to work. No matter what settings I use I cannot get a connection to fail due to lack of encryption. I can connect from any client without any encryption settings. The software is acting like the encryption requirements are not being enforced, and no doubt encryption is not being used. I used Net Manager to set up my sqlnet.ora variables for the server and I know that the Advance Security software is installed properly. Are there any prerequisites to using network encryption? Is it required that SSL be set up for example?

Thanks
-mcslain

Any ideas on this one? My sqlnet.ora file on the server side now includes the following variables added by NetManager. Again, I have gone into NetManager and attempted to set the values for Profiles> Advanced Security> Encryption. However, even with ENCRYPTION_SERVER set at required, I can connect with any client.

SQLNET.AUTHENTICATION_SERVICES= (BEQ, TCPS, NTS)
SSL_VERSION = 3.0
SQLNET.ENCRYPTION_SERVER = required
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
SSL_CLIENT_AUTHENTICATION = TRUE
SQLNET.CRYPTO_SEED = 'ghfdfsffdsfgg'
SQLNET.ENCRYPTION_TYPES_SERVER= (AES256)
WALLET_LOCATION =
(SOURCE =
(METHOD = FILE)
(METHOD_DATA =
(DIRECTORY = C:\Documents and Settings\my.name\ORACLE\WALLETS)
)
)