[Kea-users] Kea overriding predefined Option

Francis Dupont fdupont at isc.org
Tue Aug 25 18:50:36 UTC 2026


stefan novak writes:
> Hello!
>
> I want to set option 141 as sftpusername for a huaweidevice bootfile download
> .
> but when i try to set the option, kea translates the "string" into an
> domain which is wrong.

=> it is not wrong as the RFC 6011 is pretty clear about this: the
sip-ua-cs-domain option carries an array of FQDNs.

> i tried to overwrite the predefinition of option 141 as string

=> Kea does not allow to redefine standard options.

> but on the old isc-dhcp-server i can write:

=> yes, ISC DHCP allowed this but not Kea.

but Kea provides a tool, the flex option hook library, which can
overwrite the content of any option by what you want.

Regards

Francis Dupont <fdupont at isc.org>


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