i am trying to learn about LDAP and basic server creation and authenticating from client completed.
now i want add custom attribute properties for an user like cn,uid or sn i want to add networkGrp, srcIp,DestIp like that but if i add apache ds studio ignoring.
for this user i want to add some custom properties

but i ldap rejecting these changes
please help me how to add custom attribute properties

In order to do what you want, you would have to extend the InetOrgPerson class. Just as InetOrgPerson extends organizationalPerson. See rfc2798.
Alternatively, for the very lazy.... I do not recommend this, but I have done it. I just find an attribute that I am not using in InetOrgPerson (like carLicense), and use that instead for my own purposes. Very quick and dirty.