nanog mailing list archives

Re: 240/4


From: Daniel Karrenberg <daniel.karrenberg () ripe net>
Date: Thu, 18 Oct 2007 09:12:03 +0200


On 18.10 10:48, Adrian Chadd wrote:

    Asking the whole internet to support 240/4 is going to tie up
valuable resources that would be far better off working on IPv6.  Keep
in mind that it's not just software patches.  Software vendors don't do
stuff for free.  I doubt ISPs are going to pay huge amounts of money to
support a peer crazy enough to try this.  And until tested, there is no
guarantee that hardware based routing platforms (your PFCs, etc) can
route Class E addresses as if they're unicast.

So how about pulling a reachability test and announcing a few /19's from
240/4, stick a website on it and get people to report back?

If there was serious community interest in this, I am sure the RIPE NCC
could be persuaded to test this as part of the well-oiled de-bogonising 
machinery. this immediately provides automated measurements as well.

It may take a little longer than sual to set up as we may want to ask
all our de-bogonising peers whether they are OK with this just to be sure.

Daniel

PS: Personally I am not convinced that this space will ever become useful for 
global routing. But we won't know for sure until we have tried it.


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