That is correct - you need to be on the MS250 or above to run DHCP server on the MS line.   The option appears there, rather misleadingly I think.... but it doesn't work.   If you are using the MX to route then you can run DHCP on the MX If you are using the MS225's to route - then you can run the DHCP on the MX by pointing the switches to the MX.    If you have followed the best practise and enabled IP spoofing as per this article the MX may be unaware of the VLAN's. To allow it to run DHCP add them as a static route and the option to configure them for that subnet will appear in the DHCP section   Any questions just shout out 🙂 ... View more