DB Access related Privileges using the IPAddress

Hi..,
If I want to restrict the Access privileges on IPAddress Wise/OS User Wise in my Network For My database is possible in Oracle
We require this type of requirement so.., that can any body help me..
Actually this is possible in MYSQL & SQL Server.

Thanks in Advance
Giri K.Y.

It is also possible in Oracle, use this

In sqlnet.ora file add this parameters.

tcp.validnode_checking = YES
tcp.excluded_nodes = {list of IP addresses}

After setting this parameter restart listener.