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MAC address filtering based on manufacter ID

cn flag

Good morning, I'm going to implement a DHCP server that needs to accomplish following configuration:

  1. it will manage 3 sub-network from base 192.168.xxx.0/26, so I'll have 4 networks.
  2. the DHCP server, then should lease IP to clients based on MAC address manufacter ID as: Manufacter AA:BB:CC:xx:yy:zz should fall in network 192.168.xxx.66 up to 126 Manufacter DD:EE:FF:nn:mm:oo should fall in network 192.168.xxx.129 up to 191 Manufacter GG:FF:HH:pp:qq:rr should fall in network 192.168.xxx.194 up to 254

Subnetwork 192.168.x.2 up to 62 should be reserved for legacy clients that use static IP configuration at boot time.

Question: it will be enough to use just one ubuntu 20.04 LTS installation or do I need 3 different ubuntu hosts (as many as subnetwork) ?

Thanks for you reply.

Andrea

ru flag
You only need one Ubuntu 20.04 LTS installation configured with the proper DHCP rules. HOWEVER, keep in mind this will NOT work properly when people are spoofing their MACs, which happens more and more commonly nowadays. Any spoofed MACs will get in the wrong IP ranges.
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