Re: D/DoS mitigation hardware/software needed.

[Rick Ernst <nanog () shreddedmail com>]

Several responses already, and Arbor has poked their head up.

I'm going to start there and keep the other suggestions at-hand.

Thanks,


On Mon, Jan 4, 2010 at 1:19 PM, Rick Ernst <nanog () shreddedmail com> wrote:

> Looking for D/DoS mitigation solutions.  I've seen Arbor Networks mentioned
> several times but they haven't been responsive to literature requests (hint,
> if anybody from Arbor is looking...).  Our current upstream is 3x GigE from
> 3 different providers, each landing on their own BGP endpoint feeding a
> route-reflector core.
>
> I see two possible solutions:
> - Netflow/sFlow/***Flow  feeding a BGP RTBH
> - Inline device
>
> Netflow can lag a bit in detection.  I'd be concerned that inline devices
> add an additional point of failure.  I'm worried about both failing-open
> (e.g. network outage) and false-positives.
>
> My current system is a home-grown NetFlow parser that spits out syslog to
> our NOC to investigate potential attacks and manually enter them into our
> RTBH.
>
>
> Any suggestions other than Arbor?  Any other mechanisms being used?  My
> idea is to quash the immediate problem and work additional mitigation with
> upstreams if needed.
>
> I could probably add some automation to my NetFlow/RTBH setup, but I still
> need to worry about false-positives. I'd rather somebody else do the hard
> work of finding the various edge-cases.
>
> Thanks,
> Rick