how to block DHCP request?

Hello
I have a RB411 with wireless
wireless IP is 192.168.1.254
ether1 IP - 10.0.0.1
I have DHCP on it for wireless users - everything is working just great

when I connect the router to another server that have DHCP (for example 10.0.0.10)

I can see that the WiFi users get their address from the server and not from the RB

  1. why is it?
  2. how can i blcok it?

Thanks ,

  1. because you are bridging, and bridging passes all traffic.
  2. enable firewall on the bridge and filter UDP 67 & 68 from passing on the ethernet

Thanks, @IntrusDave I will try it hope it works for me.