Re: [v6ops] draft-ietf-6man-rfc4291bis prohibiting non-/64 subnets

[Alexandre Petrescu <[e-mail]>]

Le 24/02/2017 à 15:59, Christopher Morrow a écrit :
>
>
> On Fri, Feb 24, 2017 at 9:09 AM, Alexandre Petrescu
> <[e-mail] <mailto:[e-mail]>>
>  wrote:
>
>
> A question to Windows is the following: what prefixlen does it set
> when the end user manually assigns an address on an interface without
> specifiying a prefixlen?
>
>
> I don't think this matters... 'end users' will in almost all cases
> just attach and get connectivity.

Let me go next in cycle: what does linux do when one ifconfig add an
IPv6 address without telling the plen?  Is it adding an entry in the rt
table?  Which plen?  Is that plen normal?

> If they are in a place where someone says: "Hey, you should go
> if/ipconfig ...." then .. they are 'consenting adults' and can do
> whatever they please.

I assume you assume that ip/ifconfig by consenting adults means the
adults type a plen in the CLI, right?

That makes it mandatory that the CLI _requires_ a plen, right?  That CLI
should not allow silence for a plen parameter.

Because silent plen means 64.  And I dont think it's right to assume a
by-default 64 plen.  Because many people think 64 is right and others
think it's wrong, there does not seem to be a commonly agreed 'by
default' value for plen.

Alex

>
> again the proposed text (now 175+ messages back) really covers this
> already..