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seaquest45
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Joined: Mon Jun 29, 2020 12:15 pm

Firewall to protect a lab

Fri Oct 21, 2022 6:31 pm

Hi there,

I'm working in the embedded world and I use Mikrotik to secure our bench for many years. Today I'm facing to a really strange issue with the DHCP server. I want to limit the DHCP Server to deliver an IP Address in DHCP to a specific MAC Address.

I've started to do some tests with the ip/firewall/raw and I've added a single rule:
/ip/firewall/raw/add chain=prerouting action=drop src-mac-address=00:03:22:50:B2:70 log=yes log-prefix="[RAW DROP]" dst-address-type=broadcast

I see the drop counters increasing, I see the data packets coming in but even if the packets are dropped, the device receives the ip address.

What I don't understand?

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