DHCP Server and static ip address

RouterOS General
1

Ho to all,
I configured my dhcp server on router os 4.6 with a “static only” leases that I configured manually for each host.
In any case there is a possibility that a user can assign to its pc a static ip manually in my network bypassing dhcp server. In wich way Can I prevent this one?

2

Set the DHCP instance to add ARP entries for clients, a set the interface to disable dynamic learning of ARP.

3

sorry can you traduce it in router os command please?

4

The manual covers all of that:

http://wiki.mikrotik.com/wiki/Manual:IP/ARP#Reply_Only
Set the ARP mode for the interface to “reply only” so that it responds to client queries for its own IP address, but doesn’t query for client ARP but instead uses the ARP table as is.

http://wiki.mikrotik.com/wiki/Manual:IP/DHCP_Server#General
On the DHCP server instance set “add-arp” to “yes” so that a client’s MAC address is added to the ARP table for that lease address when a lease is given out. Alternatively don’t set that option and just enter static ARP entries for your static DHCP lease clients, that is also covered on the same wiki page.

5

Thanks a lot tomorrow i try new configuration…