Re: [Kea-users] Is Kea-DHCP able to support a /30 network?

2024-01-11 Thread Scott Rakow
Thanks!

On Thu, Jan 11, 2024 at 7:47 PM Darren Ankney 
wrote:

> Hi Scott,
>
> This would be the correct way:
>
> "subnet": "10.10.1.0/30",
> "pools": [ { "pool":  10.10.1.2 - 10.10.1.2 } ],
>
> Thank you,
>
> Darren Ankney
>
> On Thu, Jan 11, 2024 at 1:50 PM Scott Rakow  wrote:
> >
> > In one of my subnets I am having to deploy, I have a /30 network which
> has only one IP. Will Kea-DHCP be able to support this, as I have not seen
> anything in the documentation for this.
> >
> > If so, would I have to set up the Pool to look like...
> >
> > "subnet": "10.10.1.0/30",
> > "pools": [ { "pool":  10.10.1.2 } ],
> >
> > Or would it have to look like...
> >
> > "subnet": "10.10.1.0/30",
> > "pools": [ { "pool":  10.10.1.2 - 10.10.1.2 } ],
> >
> > Thanks,
> > Scott
> > --
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[Kea-users] Is Kea-DHCP able to support a /30 network?

2024-01-11 Thread Scott Rakow
In one of my subnets I am having to deploy, I have a /30 network which has
only one IP. Will Kea-DHCP be able to support this, as I have not seen
anything in the documentation for this.

If so, would I have to set up the Pool to look like...

"subnet": "10.10.1.0/30",
"pools": [ { "pool":  10.10.1.2 } ],

Or would it have to look like...

"subnet": "10.10.1.0/30",
"pools": [ { "pool":  10.10.1.2 - 10.10.1.2 } ],

Thanks,
Scott
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[Kea-users] Lease Tuning

2023-11-14 Thread Scott Rakow
I have started the implementation of what could become a large number of
users/pools in a Kea-DHCP4 (20 pools/5000+ IP's) and have some questions
about how to estimate/calculate some of these values.

How do I determine how long it takes to clean the memfile database?

What is the best way to calculate the lfc-interval and
reclaim-timer-wait-time? Is it based on the predicted number of IP's that
could/can be used?

Are there advantages/disadvantages to having a short or long interval/timer?

Are the valid-lifetime, T1, and T2 values part of how to calculate these
values?

Thanks
Scott Rakow
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[Kea-users] Upper End Bounds

2023-10-31 Thread Scott Rakow
All,
  A few questions on the upper end bounds for Kea-DHCP4

-  At what point would you move from the memfile and go to a database?

-  How many pools would the server be able to handle without breaking?
- And what if they are all going through the same NIC (relayed from
routers)?

Right now I am looking at about 20 pools ranging from /27 to /22 subnets to
bring into Kea and need to know how far I can push it.

Scott
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Re: [Kea-users] Lease Reclamation

2023-10-06 Thread Scott Rakow
Darren,
  Thanks for the reply. I guess I should restate my question a bit better.

If both of the "max-reclaim-leases" and "max-reclaim-time" are zero, from
what I read in the documentation, the number of leases that will be claimed
is unlimited and the time to reclaim them is unlimited.

If the reclaim time is unlimited how does the system know that that cycle
has ended, as if it is unlimited, the cycle should keep going (which would
be bad, as no IP's would be given out).

Is there a counter/timer that if all is set to "unlimited" and if nothing
is reclaimed in X time, it ends the cycle and the wait-timer can take over?

Scott

On Fri, Oct 6, 2023 at 8:55 PM Darren Ankney 
wrote:

> Hi Scott,
>
> From the ARM (
> https://kea.readthedocs.io/en/kea-2.4.0/arm/lease-expiration.html#configuring-lease-reclamation
> ):
>
> "According to the reclaim-timer-wait-time, the server keeps fixed
> intervals of five seconds between the end of one cycle and the start
> of the next cycle. This guarantees the presence of 5-second-long
> periods during which the server remains responsive to DHCP queries and
> does not perform lease reclamation."
>
> So, there would be 5 seconds or whatever you set in
> "reclaim-timer-wait-time" between each reclamation.
>
> Thank you,
>
> Darren Ankney
>
> On Thu, Oct 5, 2023 at 6:28 PM Scott Rakow  wrote:
> >
> > I have a question when setting "max-reclaim-leases" and
> "max-reclaim-time" to zero.
> >
> > If both are unlimited, when would the reclaim time end and the
> "reclaim-timer-wait-time" be able to enact its buffer?
> >
> > Would not the reclamation cycle be continuous, as there is no end to the
> max-reclaim-time?
> >
> > Scott
> > --
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[Kea-users] Lease Reclamation

2023-10-05 Thread Scott Rakow
I have a question when setting "max-reclaim-leases" and "max-reclaim-time"
to zero.

If both are unlimited, when would the reclaim time end and the
"reclaim-timer-wait-time" be able to enact its buffer?

Would not the reclamation cycle be continuous, as there is no end to the
max-reclaim-time?

Scott
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[Kea-users] Stork for RedHat/Rocky 9?

2023-09-28 Thread Scott Rakow
In wanting to install and test the latest version of Stork, the RPM's look
to only be for RedHat/Rocky 8. Will the next version include a build that
will work on 9?

Scott Rakow
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[Kea-users] exclude command?

2023-06-16 Thread Scott Rakow
I have searched the documentation and could not find a reference to this,
so I thought I would throw this out there,

Is there an option command exclude-ip or exclude-address for dhcp4?

Thanks,
Scott
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[Kea-users] Memfile vs Database

2023-06-08 Thread Scott Rakow
Kea hive mind,



  I am looking to use the DHCP server in hot standby HA configuration that
will be using about 4,000 IP’s across 20 pools. I will be using options and
perhaps later I may have to include reservations.



At what point do I look at using Kea in a database configuration instead of
the memfile configuration?



Thanks,
Scott
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