Firewall DHCP Block

RouterOS General
1

My “SXT HG5” model has access point.
I have 10 lite5 devices connected to HG5.
I want to block the DHCP announcement on the HG5 device.
I tried many examples on the forum and on the internet, but it did not work. I tried to block all DHCP ports by writing input, forward, and output rules to the firewall, but that did not work.

DHCP I want to block all kinds of announcements including ipv4 and ipv6. How can I do that.

Thank you for the experts who have already responded.

2

Blocking udp ports 67 and 68 by bridge firewall works good. I used that long time ago when I had to bridge two networks…

3

I tried that. The CRS112 is working. But the HG5 te does not work.