Hello, If you need to use option 82 suboption 2 (or any other RAI option content) to identify the host reservation, then you will need to use the flex_id hook: https://kea.readthedocs.io/en/kea-2.6.1/arm/hooks.html#libdhcp-flex-id-so-flexible-identifier-for-host-reservations You can, of course, create a class per client if you prefer, but that may result in a performance penalty depending on the number of classes.
Thank you, Darren Ankney On Tue, Sep 17, 2024 at 8:11 AM <[email protected]> wrote: > > Ok, but according to documentation for creation of > reservation(https://kb.isc.org/docs/what-are-host-reservations-how-to-use-them) > I can use only > ... > The host is identified in the host reservation through one of the following: > > duid > hw-address > flex-id > client-id (v4 only) > circuit-id (v4 only) > ... > > But I can use only Option 82 Suboption: (2) Agent Remote ID. > Is it possible to use Option 82 Suboption: (2) Agent Remote ID. In host > reservation? > > > Orange Restricted > > -----Original Message----- > From: Kea-users <[email protected]> On Behalf Of Darren Ankney > Sent: Tuesday, 17 September 2024 12:52 > To: Kea user's list <[email protected]> > Subject: Re: [Kea-users] [*Newsletter*] Re: Client class limitations > > Hello, > > No ip-address required. See first example shown here: > https://kea.readthedocs.io/en/kea-2.6.1/arm/dhcp4-srv.html#global-reservations-in-dhcpv4 > > Thank you, > Darren Ankney > > On Tue, Sep 17, 2024 at 5:39 AM <[email protected]> wrote: > > > > Yes, but reservation reqire also dedicated ip address? Or i dont understand > > something? > > > > > > -------- Исходное сообщение -------- > > От: Darren Ankney <[email protected]> > > Дата: 17.09.2024 12:29 (GMT+02:00) > > Кому: Kea user's list <[email protected]> > > Тема: [*Newsletter*] Re: [Kea-users] Client class limitations > > > > Hi , > > > > If you need to set options on a per client basis, I suggest you have a > > look at "reservations": > > https://kea.readthedocs.io/en/kea-2.6.1/arm/dhcp4-srv.html#including-s > > pecific-dhcpv4-options-in-reservations > > > > Thank you, > > Darren Ankney > > > > On Tue, Sep 17, 2024 at 4:47 AM <[email protected]> wrote: > > > > > > Hello. > > > Previously i asked question abot if it is possible to specify array of > > > criteria in client class. > > > As i understand this is impossible. > > > The problem is that i need to provide alternative dns server for specific > > > clients. > > > These clients can be matched by option 82 suboption 2. > > > Each client will have uniqe value. > > > So i understand that the only way to do this with kea is creating for > > > each client his own client class. > > > I have configuration backend and this can be done with rest api, no > > > rpoblem, but i am not sure if this is good idea to create large amount of > > > cliebt classes. > > > Does kea have limitation of client class quantity or does large amount of > > > cliebt classes can affect kea perfomance? > > > Because now when we have outages in the network an large amount of > > > dhcp traffic hits-kea processes this without any problems and i dont wabt > > > to loose this perfomance This message and attached information may > > > contain confidential information that may be protected by law. 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