nanog mailing list archives

Re: v6 deagg


From: Christopher Morrow <morrowc.lists () gmail com>
Date: Tue, 24 Feb 2015 17:32:08 -0500

On Tue, Feb 24, 2015 at 12:27 PM, Owen DeLong <owen () delong com> wrote:

On Feb 19, 2015, at 21:25 , Christopher Morrow <morrowc.lists () gmail com> wrote:

On Thu, Feb 19, 2015 at 10:16 PM, manning bill <bmanning () isi edu> wrote:
and then there are the loons who will locally push /64 or longer, some of which may leak.


2001:2b8:46:bbbb::/64
... a fairly extensive list actually....

show route table inet6.0 | grep ^2 | except /4[876543210] | except /3 | except /2 | count
Count: 297 lines

Some are likely my local network's interfaces (so skip ~50 or so? to
be generous) and some might be my provider's customers? (but they
shouldn't send me shorter than a /48, right?)

-chris
(note on another observation point I don't see this sort of thing so
perhaps it's just one upstream in a collection... I'll ask them
seperately)

Your regular expression will not only count /49 and longer, it will also count /19 and shorter.

In my routing table, there are at least some examples of such routes.

yup, not very many and I think not enough to matter over all, give
then actual point was I see many smaller (longer?) than /48 in the
table.


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