[Kea-users] Kea implementation planning

[Ben Monroe]

Greetings.

I am new to Kea, so please forgive my lack of knowledge / experience.

This is something that I hope to remedy in the short term.



I am preparing a lab / test environment.

It will need to support around 50-100 hosts, all on a single private subnet.

Currently I have implemented two DNS servers running Bind.

These are implemented on two Raspberry Pi 3 instances running Arch Linux.



Next I would like to build a DHCP server using Kea.

I am still at the planning stage and have a few questions.


1)      Is it normal for a subnet to have a single DHCP instance or
multiples instances?

2)      In the case that multiple DHCP servers exist on a the same subnet,
are the instances all active and load balanced? Or is only one active while
the others are inactive until some kind of failover occurs?

3)      If multiple DHCP servers exist on the same subnet and are all
active, what is to prevent a client from receiving multiple DHCP responses?

4)      Is it normal to run both DNS and DHCP services on a single server?
Are there advantages to running DNS and DHCP on separate servers?

The answers to these questions will help in deciding whether I should
install Kea on the same server instances (Raspberry Pi 3) that are running
DNS (Bind), how many servers, or whether I should split them to dedicated
servers (likely also Raspberry Pi 3).



Thank you,

Ben Monroe
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