Static IP
 

Is there any way to force any user a single IP ?

Because after assigning static IP from the server side to a MAC address , if the user changes the static ip from the userside , then the IP of the user changed.

Not if they have the system access to do it. There are actually some ways to do things on the network switches to only permit certain IP:Mac combinations etc... but that's fairly in depth cisco stuff generally.

No they dont have system access, I myself tried this. After assigning static IP on the server side, if I am changing the IP from my side it works ok without any error.

but you said they could change their IP??

They could change means, in windows in control panel -> my network places -> Double click on the network icon -> properties -> double click on TCP/IPV4 -> Enter the static IP -> OK.

Here they change their IP .

Yrs, so that's system access, which you said they didn't have...?

Yes they have admin access to their own system not to the router.

Right...routers don't (usually) give out IP addresses. If you're letting the users have admin rights on their workstations, they they will obviously be able to change their addresses.

Take away their admin rights, give them DHCP addresses, or learn to live with it.

Which router do you have? Buy RouterBoard by mikrotik for 30 bucks and you solved your problem, there you can bind IP with MAC.

This solves nothing at all. The OP already stated they have setup MAC binding on whatever is doing DHCP and it works fine. The problem is that the user(s) have admin rights on the PC and can thus change the PC IP address. The OP is looking for a way to prevent this, which as mentioned would require the removal of admin rights, or some complex work on Cisco (or similar) switches to lock specific IP/MAC combos to a port.