[c-nsp] IPV6 in general was Re: Large networks

Gert Doering gert at greenie.muc.de
Thu Aug 27 07:36:24 EDT 2009


Hi,

On Thu, Aug 27, 2009 at 12:51:42PM +0200, Grzegorz Janoszka wrote:
> Link-local IP's are fe80::/10, so I planned to use fe80::/16 in my 
> network just by replacing first 16 bits of our public IP's.
>
> Can anyone say whether this is bad or wrong idea? :)

Bad *and* wrong.

Link-locals are neither announced nor configured, they are just *there*,
and it will always be fe80::/64 on every link.

If you want to do use "locally significant addresses", use ULAs.

gert

-- 
USENET is *not* the non-clickable part of WWW!
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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de
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