Re: IPv6 w.g. Last Call on "Link Scoped IPv6 Multicast Addresses"

[Pekka Savola <pekkas@netcore.fi>]

On Wed, 22 Oct 2003, Pekka Savola wrote:
>  - put it in RFC3306 address, like FF32:40:fe80:<stuff>:<group-id> or
>    FF32:A:fe80:<stuff>:<group-id>.
>    this would leave 64 bits space to generate an address, assuming the 
>    group-id is 32.
>  - the 64 bits (<stuff>) could be the interface ID of the link-local 
>    address, or something else completely, like a random number.

oops.. a miscalculation; this would leave (about) 48 bits for "stuff"  
rather than 64.. assuming the group-id would be 32, which it wouldn't need
to be.

regardless of that, the point seems valid: there seem to be little need 
for this spec.

of course, the simplest way would be use the about 48 bits or 80 bits to
randomly generate an address.  The collision probability is insignificant.

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings


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