v6 deagg

Christopher Morrow morrowc.lists at gmail.com
Tue Feb 24 22:32:08 UTC 2015


On Tue, Feb 24, 2015 at 12:27 PM, Owen DeLong <owen at delong.com> wrote:
>
>> On Feb 19, 2015, at 21:25 , Christopher Morrow <morrowc.lists at gmail.com> wrote:
>>
>> On Thu, Feb 19, 2015 at 10:16 PM, manning bill <bmanning at 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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