OPNsense Forum

English Forums => 25.7 Series => Topic started by: rfox on July 31, 2025, 11:49:52 AM

Title: Fresh install 25.7 and using 25.1 backup config - what happens with ISC DHCP?
Post by: rfox on July 31, 2025, 11:49:52 AM
Quick question - if I have 4 different VLANs and ISC DHCP currently configured and working in 25.1 - save a backup of the config - then install a fresh instance of 25.7 and import the 25.1 config - what happens with the ISC DHCP services ?? Do they get automatically translated into DNSMasq DHCP ? Or should the backup be imported without DHCP and manually configure DNSMasq?

Thx in advance!
Title: Re: Fresh install 25.7 and using 25.1 backup config - what happens with ISC DHCP?
Post by: Patrick M. Hausen on July 31, 2025, 12:00:50 PM
Quote from: rfox on July 31, 2025, 11:49:52 AMwhat happens with the ISC DHCP services

Nothing, really. ISC DHCP4 is still part of 25.7.
Title: Re: Fresh install 25.7 and using 25.1 backup config - what happens with ISC DHCP?
Post by: rfox on July 31, 2025, 12:17:44 PM
Quote from: Patrick M. Hausen on July 31, 2025, 12:00:50 PM
Quote from: rfox on July 31, 2025, 11:49:52 AMwhat happens with the ISC DHCP services

Nothing, really. ISC DHCP4 is still part of 25.7.

Understood - so even though DNSMasq DHCP is standard in 25.7 when using the setup wizard, if you import an older 25.1 backup file which had ISC it will then activate ISC just like before . . . no conflict with DNSMaq . . .
Title: Re: Fresh install 25.7 and using 25.1 backup config - what happens with ISC DHCP?
Post by: franco on July 31, 2025, 01:07:41 PM
Entirely correct.