Hi Mark, > Is there a way to get around the error "unable to override definition of > option '121' in standard option space 'dhcp4' "?
Yes. This article describes such a method: https://kb.isc.org/docs/redefining-standard-options Thank you, Darren Ankney On Sat, May 31, 2025 at 6:33 PM ldm--- via Kea-users <kea-users@lists.isc.org> wrote: > > Hi! > > With recent Kea version 2.6.2 I am getting: > Error encountered: unable to override definition of option '121' in standard > option space 'dhcp4'. > > Because my kea-dhcp4.conf relies on: > > "option-def": [ > { > "space": "dhcp4", > "name": "rfc3442-classless-static-routes", > "code": 121, > "array": true, > "type": "record", > "record-types": "uint8,uint8,uint8,uint8,uint8,uint8,uint8,uint8" > }, > { > "space": "dhcp4", > "name": "ms-classless-static-routes", > "code": 249, > "array": true, > "type": "record", > "record-types": "uint8,uint8,uint8,uint8,uint8,uint8,uint8,uint8" > } > ] > > with some research I found issue #3074 > https://gitlab.isc.org/isc-projects/kea/-/issues/3074 > > > and a one year old merge request #2135 > https://gitlab.isc.org/isc-projects/kea/-/merge_requests/2135 > > The issue states: > > > While routes can be hand-mangled into the correct order and then expressed > > as a string of hex bytes, this is onerous for DHCP administrations and > > error-prone. > > While I appreciate the option_classless_static_route.cc offers a new less > error-prone way of publishing static routes, I would still expect that I can > keep using the legacy old way of defining static classless routes in my > config. Especially since I want to use the same config on my failover kea > server that is still on Kea version 2.4.1 (stable) and can't be easily > upgraded. So the Kea version 2.6.2 apparently can't use the old way, and the > Kea version 2.4.1 (stable) can't use the new way of defining routes. > > > I found this https://kb.isc.org/docs/kea-configuration-sections-explained > documentation, but I am not sure how to use it. It seems more about defining > client classes than what I need. > > > Is there a way to get around the error "unable to override definition of > option '121' in standard option space 'dhcp4' "? > > > Best regards > > Mark > > > > > > > -- > ISC funds the development of this software with paid support subscriptions. > Contact us at https://www.isc.org/contact/ for more information. > > To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. > > Kea-users mailing list > Kea-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/kea-users -- ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information. To unsubscribe visit https://lists.isc.org/mailman/listinfo/kea-users. Kea-users mailing list Kea-users@lists.isc.org https://lists.isc.org/mailman/listinfo/kea-users
