>>   whether they are crossing boundaries for their scopes.  Thus, it is
>>  possible, though generally inadvisable, to use a Routing Header to 
>>   convey a non-global address across its associated zone boundary. 
>>
>>I believe this is very inadvisable.

>Yeah, it's not likely to do anything useful.  But I would not want to
>impose the cost on implementations of a relatively expensive check (a
>scan through all the addresses in a Routing header) for a such an
>unlikely event.

Agreed.  ALso to early to limit functionality if that can be avoided.

thanks and this spec is really good on my fourth read.........
/jim  
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