> On Feb 19, 2015, at 21:25 , Christopher Morrow <morrowc.li...@gmail.com> > wrote: > > On Thu, Feb 19, 2015 at 10:16 PM, manning bill <bmann...@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. Owen
