[Kea-users] single subnet for multiple interfaces

[Joe Botha]

Hi

We look at using relays, but ISC DHCP relay is end-of-life, and it can’t add v6 PD routes - so we are looking at just installing Kea on the switch - which is why we want an IP pool shared with multiple VLAN interfaces.

> Does the subnet need to receive different networking/routing details
> depending on which VLAN it is attached to?

Nope, all the same gateway IP - which we will probably put on a loopback interface.

-- 
Swimmingly,
 Joe

swimgeek.com/blog  +27 82 562 6167  instagram.com/joe.swimgeek
      "...all progress depends on the unreasonable man.”




> On 13 Jul 2023, at 17:22, Darren Ankney <darren.ankney at gmail.com> wrote:
> 
> Hi Joe,
> 
> Does the subnet need to receive different networking/routing details
> depending on which VLAN it is attached to?
> 
> Is the DHCP traffic relayed?
> 
> You might be able to something like:
> 
> "subnet4": [
>  {
>    "id": 1,
>     "subnet": "192.0.2.0/24",
>     "relay": {
>        "ip-addresses": [ "198.51.100.1", "198.51.100.2" ]
>     }
>  }
> ]
> 
> where you are specifying multiple relay ips to use for assigning from
> one subnet.  Take care here as the clients will all receive the same
> details (subnet mask, default gw etc..) so it must be confirmed that
> this is ok from a routing prospective.
> 
> Thank you,
> 
> Darren Ankney
> 
> On Thu, Jul 13, 2023 at 11:07 AM Joe Botha <joe at swimgeek.com> wrote:
>> 
>> Hi
>> 
>> Is there a way to configure Kea so you can share a subnet over multiple interfaces?
>> 
>> Use case is something like sharing a /24 subnet where you have a few VLAN interfaces on the server.
>> 
>> --
>> Swimmingly,
>> Joe
>> 
>> swimgeek.com/blog  +27 82 562 6167  instagram.com/joe.swimgeek
>>      "...all progress depends on the unreasonable man.”
>> 
>> 
>> 
>> --
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>> 
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