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English Forums => 25.7 Series => Topic started by: OrlyP on September 28, 2025, 03:09:10 PM

Title: Block randomized MAC address using Dnsmasq, possible?
Post by: OrlyP on September 28, 2025, 03:09:10 PM
Without delving into the "why", I need help making this possible.

I use Dnsmasq as my DHCP server and I'm playing around with the following config but Dnsmasq errors out at line 2 to 5. I don't know if it's a syntax error or if dhcp-host doesn't allow masks.

dhcp-range=set:EARTH,192.168.35.51,192.168.35.200,255.255.255.0,24h
dhcp-host=*2:*:*:*:*:*,set:random_mac
dhcp-host=*6:*:*:*:*:*,set:random_mac
dhcp-host=*a:*:*:*:*:*,set:random_mac
dhcp-host=*e:*:*:*:*:*,set:random_mac
dhcp-ignore=tag:EARTH,tag:random_mac

Honestly, I don't know what I'm doing. lol

Any helping hand will be very much appreciated.
Title: Re: Block randomized MAC address using Dnsmasq, possible?
Post by: Monviech (Cedrik) on September 28, 2025, 03:56:32 PM
If you dont know what you are doing read the dhcp-host directive in the man page, it explains everything:

https://thekelleys.org.uk/dnsmasq/docs/dnsmasq-man.html
Title: Re: Block randomized MAC address using Dnsmasq, possible?
Post by: OrlyP on September 29, 2025, 01:27:42 AM
Quote from: Monviech (Cedrik) on September 28, 2025, 03:56:32 PMIf you dont know what you are doing read the dhcp-host directive in the man page, it explains everything:

https://thekelleys.org.uk/dnsmasq/docs/dnsmasq-man.html

Ah well... so evidently, wildcard masks aren't supported.

Thank you. It was already late last night and didn't think better to look at the docs.