my hot spot responds to all the ips on my network .how can i make it respond to only certain ips.
on which i want to authunticate users via hot spot.
please help.....................

Insert firewall filter rules into the input chain that drop traffic destined for the hotspot port from all but the IPs you want to allow access to.

HTH,
Felix

Thank you very much.

Do you mean that you want to set up a HotSpot on an interface, or what ?

Please explain how people connect to it, and how you want it to behave.