On Sun, 28 Jun 2020 13:15:05 +0100, Andy Burns
 wrote:

> However I guess must people here are left wondering why you think you
> need absolute network isolation for a handful of rPis that, let's face
> it,  are unlikely to be running fort knox, or a nuclear power plant,

I agree.

> and that you could likely get a suitable level of isolation for your
> purposes over a single ethernet port using VLANs ...

And/or iptables to drop any traffic that is not allowed by
network interface, source and destination IP-address, and port.
--
Regards,
Kees Nuyt

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