Re: IPv4 mapped address considered harmful

[itojun () iijlab net]

> >      the problem is that some protocol proposal do not consider IPv4 mapped
> >      address as "bogon" - they propose to actually use them in IPv6 traffic
> >      on wire.
> They used to be bogons, so any currently existing bogon filters (e.g.,
> in firewalls) will drop them. Only remove them from your bogon filters
> when/if you decide you want them.

        no specification (as far as i know) never defined IPv4 mapped address
        to be bogons.  IPv6 address architecture document is silent about it.
        this is a part of the problem I would like to fix.
        if you have any opposite evidence (specified as bogon), let me know.

itoun