Re: How do people use npf with dhcpcd?

On 28/12/2025 05:16, David Brownlee wrote:
> On Fri, 26 Dec 2025 at 23:44, RVP <[email protected]> wrote:
>> Pass the `-w' (wait) flag to dhcpcd?:
> That allows the system to work if a dhcp server responds quickly
> enough, but leaves a nasty failure mode with broken npf if it does -
> like in a power failure where anything in set of "dhcp server and all
> links between" comes up slower than the NetBSD box.... :/
>
I use a belt and braces approach on my home network where some hosts get 
statically configured with their dynamic configuration.

My ISP has assigned me a static IPv4 address, a static IPv6 /128 address 
and a static IPv6 /56 network. My internal DHCP server is running on a 
separate host from my router.

I wrote an Ansible role that I run on hosts that need to boot without a 
network that copies their currently running configuration into their 
static configuration files. I did write a bit of Python code to convert 
IPv4 netmasks into a prefix bit count.

This seems to work well enough for me, although it isn't super well 
tested because I don't like testing power cuts.

Ngā-mihi,
Lloyd