any dangers of filtering every /24 on full internet table to preserve FIB space ?

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On Mon, Oct 10, 2022 at 05:20:33PM +0200,
 Stephane Bortzmeyer <bortzmeyer at nic.fr> wrote 
 a message of 10 lines which said:

> > But theoretically every filtered /24 could be routed via smaller
> > prefix /23 /22 /21 or etc.
> 
> I don't think this is true, even in theory, specially for legacy
> prefixes.

I even find an example on my employer's network :-)

192.93.0.0/24

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