Re: ifupdown and inet6 gateways for inet interfaces

[Andy Smith <andy@strugglers.net>]

Hi,

On Sat, Sep 28, 2024 at 04:37:31PM +0100, Tim Woodall wrote:
> Fascinating! I had absolutely no idea you could do that!

It is fun. 😀 Having users, even if it was supported in ifupdown,
netplan etc I'm still not sure I would do it just yet as it may be far
too unexpected for them.

> I suspect you can do it with pre-up commands and inet6 manual. I'd not
> be surprised if everything else expects a gateway to be on the same
> AF_FAMILY.

I got a reply on Fedi basically to that effect, by someone who had
recently presented on the subject:

    https://wybt.net/@tfiebig/113213745122607112

    The issue are the routes; With netplan, I just set the route via
    puppet atm (you could use the funny netplan equivalent of post-up;
    Don't have it from the top of my head.)

    For ifupdown, it is just a 'skip the gateway and put the `ip -4
    route` statement into a post-up.

A reply to that showed how netplan triggers scripts, so both things
basically need external commands at the moment.

Thanks,
Andy

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