[Kea-users] Overlapping Subnets

[Matt Aiken]

Thanks Martjin, if I understand correctly you run 2 or more kea-dhcp4 daemons bound to different interfaces on the VM/server and with different config files?

Are you doing same for the control-agent, listening on 2 or more ports?

Thanks,

- Matthew

From: Kea-users <kea-users-bounces at lists.isc.org> On Behalf Of Martijn Remmen via Kea-users
Sent: Tuesday, July 30, 2024 12:46 PM
To: Kea user's list <kea-users at lists.isc.org>
Cc: Martijn Remmen <martijnremmen at icloud.com>
Subject: Re: [Kea-users] Overlapping Subnets

[EXTERNAL EMAIL]
Hi Matt,

We have the same use case (running dhcp services for multiple VRFs). We run a kea instance for each vrf. Back when we researched this, it was not possible with a single kea instance.

We have a systemd template for the kea service, and can manage the service with ‘systemctl start kea-dhcp4 at vrf111’.

It has its pros and cons. I guess you could also look at containers.

We previously used LXC, but had issues with maintaining all the containers. I feel like our current solution is a lot easier to maintain.

Let me know if you have any questions.

Regards,

Martijn


Op 30 jul 2024 om 18:16 heeft Matt Aiken via Kea-users <kea-users at lists.isc.org<mailto:kea-users at lists.isc.org>> het volgende geschreven:

Thank you, Darren and Peter.

My use case involves managing the address spaces for different VRFs in our network, which may have overlapping or duplicate addresses.

I can achieve the required functionality using option 82 information added by my relay to choose between VRFs. However, this method breaks down when I introduce a subnet that exists in both VRFs.

The only alternative I can think of is to run separate instances of Kea for each VRF. However, I was hoping to simplify things by using a single server and leveraging option 82 information.

Thanks,

- Matthew
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