[Kea-users] Selecting subnet based on circuit-id (OPEN)

[Allan M33 Access]

The flexible identifier hook for kea will allow you to use the dhcp option 82 sub option 1 as an identifier for leases. The flex hook is part of the premium hook packages though, purchasable on Isc’s website. The package also comes with the legal logging hook. 

My setup has the same concept, for my VLANs I set them up as individual interfaces on my box, then I define those interfaces for each subnet in the configuration. I use the flex it to use the circuit id as an identifier with “replace-client-id”: true

Even though the circuit id does have the VLAN in it, I choose subnets by the interface the packet comes in on instead.

-Allan

> On Dec 15, 2021, at 5:12 AM, Weisteen Per <per.weisteen at telenor.no> wrote:
> 
> Hi
> 
> I've just set up KEA 2.0 on a RHEL 8 box using RedHat Repository setup as instructed at cloudsmith.io. 
> Seems that the packages available for me now is kea.x86_64, kea-devel.x86_64, kea-hooks.x86_64 and kea-libs.x86_64 all of which I have installed.
> 
> Seems though I'm missing some libraries mentioned in the kea-dhcp4.conf file like libdhcp_legal_log.so and control-agent-commands.so but I assume they're not critical.
> 
> What I initially need is to be able to select beween subnets based on which VLAN/VPN the request comes from. My network guys has set up several Cisco routers which will assign clients to one specific VLAN/VPN if the client manages to authenticate using 802.1x and to another if the authentication fails. Am I correct to believe that Cisco router will supply me with information on which VLAN/VPN a client was assigned to using circuit-id?  Is this a parameter already predefined in KEA or do I have to define it somewhere?
> 
> Thanks,
> 
> 
> ./PerW
> 
> 
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