DOS attack assistance?
Paul Rolland (=?UTF-8?B?44Od44O844Or44O744Ot44Op44Oz?=)
rol at witbe.net
Wed Nov 26 11:14:18 UTC 2008
Hello,
On Wed, 26 Nov 2008 05:37:59 -0500
Pete Templin <petelists at templin.org> wrote:
> One of my customers, a host at 64.8.105.15, is feeling a "bonus"
> ~130kpps from 88.191.63.28. I've null-routed the source, though our
> Engine2 GE cards don't seem to be doing a proper job of that,
> unfortunately. The attack is a solid 300% more pps than our aggregate
> traffic levels.
>
> It's coming in via 6461, but they don't appear to have any ability to
> backtrack it. Their only offer is to blackhole the destination until
> the attack subsides. BGP tells me the source is in AS 12322, a RIPE AS
> that has little if any information publicly visible.
>
12322 is Free, a DSL (and now FTTH) provider in France. They also have
a dedicated server hosting service.
88.191.63.28 is one of these dedicated server that is hosted in one of their
DC :
traceroute to 88.191.63.28 (88.191.63.28), 30 hops max, 60 byte packets
...
7 10ge-1-50.bzn-swr5.dedibox.fr (88.191.2.37) 353.946 ms 334.180 ms 336.400 ms
8 sd-11899.dedibox.fr (88.191.63.28) 338.403 ms 374.956 ms 376.837 ms
I thought these were supposed to be connected at 100MBps, but if you see
more than that, then it is possible that they are now connected thru a GBps
port.
You can try to contact the dedibox NOC, and Free :
noc at free.fr
can be a nice place to start...
Paul
> Any pointers on what to do next?
>
> Thanks,
>
> Pete
>
--
Paul Rolland E-Mail : rol(at)witbe.net
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