Re: [netmod] 6021 ipv4-prefix

Mikael Abrahamsson <swmike@swm.pp.se> Thu, 18 April 2019 10:53 UTC

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Date: Thu, 18 Apr 2019 12:53:22 +0200 (CEST)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
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Subject: Re: [netmod] 6021 ipv4-prefix
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On Thu, 18 Apr 2019, Juergen Schoenwaelder wrote:

> On Thu, Apr 18, 2019 at 11:43:05AM +0200, Mikael Abrahamsson wrote:
>
>> 2001:db8::/64 and 2001:db8::1/64 are NOT the same if you use them.
>
> Why are they not the same if you define a prefix?

Because they're not. One of them is a valid prefix, the other one isn't.

> +17.4 is not an integer, so this is an error (not because of the + but 
> because of the . followed by additional digits). +17 is I think a valid 
> integer value but the + will be dropped in the canonical representation.

Yes, but 2001:db8::1/64 isn't valid prefix (because the host portion of 
the prefix isn't 0) so why should it be "rounded" when 17.4 shouldn't be 
rounded if an integer input is expected?

-- 
Mikael Abrahamsson    email: swmike@swm.pp.se