I found the answer for myself:
https://social.technet.microsoft.com/Forums/lync/en-US/054977c6-0cb6-4f35-ae70-6a6327f49015/how-to-configure-ltmsradiusframedipaddressgt-with-ms-ias-server?forum=winserverNIS
Pisch Tam?s <pischta at gmail.com> ezt ?rta (id?pont: 2022. m?rc. 31., Cs,
15:56):
> Hi,
>
> I set up a vpn with Windows RRAS server. It authenticates from a Samba AD.
> In AD Users and Computers, I cannot use the Dial-in tab in the users
> properties. I can set attributes with Attribute editor. I can set
> msNPAllowDialin attribute for the vpn, but I would like to assign static ip
> for some users, but I cannot find the appropriate attribute for that.
> Is there a way to assign static ip for the AD users?
>
> Thanks,
>
> Tamas.
>