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Re: MVP for a DHCP server (was Re: ISC's EoL dhcp suite, including dhcpd)
Roy Marples wrote:
> ---- On Mon, 14 Jul 2025 19:02:13 +0100 Martin Husemann <martin%duskware.de@localhost> wrote ---
> > On Mon, Jul 14, 2025 at 05:45:10PM +0100, Roy Marples wrote:
> > > Would you consider an option to use ethers(5) for this instead?
> > > This would allow IPv4 mapping, but not IPv6.
> >
> > That is another indirection and quite inconvenient in the diskless
> > client case. I want the information as close to the root path/next
> > server option configuration as possible.
>
> Right, but I'm trying to avoid any kind of per host configuration right now.
> If we can achieve static DHCPv4 assignmen via ethers then I think that's MVP for now.
I'm in a similar situation to Martin. I have a bunch of diskless
clients that boot with dhcp to get their root filesystem location.
For a DHCP server running on NetBSD to support other NetBSD diskless
clients, I think this is the minimal functionality I'd need (from my
existing ISC dhcpd config):
option domain-name "thistledown.com.au";
option subnet-mask 255.255.255.0;
subnet 192.168.0.0 netmask 255.255.255.0 {
option routers 192.168.0.1;
option domain-name-servers 192.168.0.42, 192.168.0.1;
option ntp-servers 192.168.0.1, 192.168.0.42;
range 192.168.0.210 192.168.0.249;
}
group {
host mona {
hardware ethernet 08:00:2b:2f:d5:58;
fixed-address mona;
server-name "thoreau";
filename "mona.root/netboot";
option root-path "/tftpboot/mona.root";
}
}
All my diskless clients have static IP addresses.
Cheers,
Simon.
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