Re: dhcpsd released, a RFC2131 DHCP server (was Re: ISC's EoL dhcp suite, including dhcpd)

[Andy Ruhl <acruhl%gmail.com@localhost>]

On Sun, Nov 2, 2025 at 12:54 AM Roy Marples <roy%marples.name@localhost> wrote:
> So here it is - dhcpsd is released and is available in pkgsrc-current.
>
> This is a DHCP server, driven by plugins rather than a specific
> configuration.
>
> There is an auto plugin which makes an opinionated automatic
> DHCP setup based on your IP address.
> There is a leasefile plugin which stores the leases to a
> persistent flat file periodically.
> There is an ethers plugin to lookup a nodes hostname from their
> ethernet address.
> There is an addrinfo plugin to lookup a nodes ip address from their
> hostname.
> There is an ICMP plugin to detect if an ip address is in use
> before offering it.
> And if that is not enough there is a LUA plugin which allows you
> to script pretty much everything, but there is likely room for
> improvement here.
>
> Out of the box, dhcpsd is fast by using 2 hashmaps for clientid
> and ip address lookups and then by using a Red Black tree for
> lease expiry ordering.
> dhcpsd is written in C and uses Verstable for a hashmap and
> NetBSD's Red Black tree.
> It's also event driven with timeouts and callbacks which
> allows for example the ICMP plugin to hold the DHCP request
> until finished and then continue it once done and dhcpsd
> will process other tasks in the middle of this.
>
> dhcpsd is also secure by supporting Capsicum from FreeBSD,
> pledge from OpenBSD send SECCOMP from Linux.
> Other OS's enjoy a POSIX resource limited chrooted sandbox.
>
> I hope you all enjoy using this as much as I have creating it :)
> If not, then please leave some feedback so it can be improved!
>
> Homepage here:
> https://github.com/NetworkConfiguration/dhcpsd
>
> Roy

Thank you! I will read about it and give it a try at some point.

I'm a long time user of the ISC DHCP server for my small home network
which has allowed me to be somewhat knowledge about it when I
encounter it for work.

Looking forward to it.

Andy