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If there are to be filters then they should be defined once and never changed as people will fail to update

Yay! We can return to classful routing again. That sure worked out well for us the first time around. ^_^;

We have already, all we're discussing now is if we do a better job of implementing it. Classful suffered from lack of space in each range and too coarse a set of fixed ranges, all fixable in v6 so perhaps it's not so bad?

So, if I need to break up my /32 into 4 /34s to cover different geographical regions, I should instead renumber into a new range set aside for /34s and give back the /32?

And what if you need a few /48's, then you're open to others advertising some of yours too. With no organised mechanism of communicating acceptable prefix lengths to all routers [1] then we either do nothing and let anarchy rule, do something that overly constrains or do half the job and have both problems.

Perhaps we should give everyone an allocation out of each filter range, so that they can simply number from the appropriately-classed range; when you apply for space, you'd get a /32, a /33, a /34, a /35, a /36, etc. all from the appropriate, statically defined ranges.

*removes tongue from cheek*

What would be most efficient for all? Semi classful or not I don't mind but it does seem pointless to have been going round the same circle for so many years. brandon [1] sbgp would be secure anarchy