DHCP only to WiFi Only

RouterOS Beginner Basics
1

I have problem where RB333 is assigning IP to everything in the network. Is there a way for it to assign IP ONLY to the wifi connecting to it?

I currently have:

DSL Modem → Netgear Router → Switch
|–> RB333
|–> SBS 2008
|–> D-Link WiFi Router


DSL Modem is bridged.
Netgear Router (192.168.0.1/24), wifi & DHCP server disabled
SBS 2008 (DHCP server 192.168.0.2/24)
RB333 is on our tower to handle distant wifi communications (192.168.15./24) w/ DHCP server
D-Link router is used for internal wifi communication (192.168.2./24) w/ DHCP server

I need all office workstations to receive 192.168.0.*/24 IP’s, but they keep getting assigned by RB333. Is there a way so RB333 assign IP only to the wifi that it’s connected to?

Thanks.

2

You must have all the network segments bridged together. The DHCP process starts with a broadcast request and any/all DHCP servers within the broadcast domain can respond to it.

It sounds like you need to modify your network topology.

3

Currently, I have RB333 in bridged mode,
with ether1 and wlan1 to bridge1,
and interface on DHCP to bridge1.

This all works where my clients get 192.168.15.* IP and can access Internet. Trying
interface on DHCP to wlan1
gets an error.

How do you set it so DHCP server will only be seen by wireless clients?

4

You can block DHCp packets in bridge firewall if they are arriving not on wireless interface or sent out not over wireless interface.