Large number of IPv6 bogons with spoofed ASpath
andree+nanog at toonk.nl
Sat Jun 12 13:04:40 CDT 2010
Yesterday I noticed a large number of 'bogon' IPv6 announcement.
I think it was about a 100 different (IPv6) bogon prefixes   being
announced from a what looks a variety of origin ASns.
Being the administrator of one of these ASns, I'm quite confident that
we were not actually announcing this prefix (f006:9000::/24).
Looking more carefully at the data. it looks like the Origin AS /
ASpaths are spoofed. I suspect it's just one person/organization
somewhere in AS174 or AS3257 network which is announcing these bogons
prepending it with different ASns.
Does anyone have an idea what this could be? Someone doing some kind of
I summarized my observations here: http://bgpmon.net/blog/?p=299
If anyone has more info about this, please let me know as I am
interested to learn more about this.
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