nanog mailing list archives

Re: DDOS solution recommendation


From: Sathya Varadharajan <sathya.varadharajan () gmail com>
Date: Sat, 10 Jan 2015 23:32:54 -0500

This gives some comparison of cloud based Ddos mitigation providers.
https://www.ombud.com/product/compare/prolexic-ddos-protection
On Jan 10, 2015 10:50 PM, "Damian Menscher" <damian () google com> wrote:

On Thu, Jan 8, 2015 at 9:01 AM, Manuel MarĂ­n <mmg () transtelco net> wrote:

I was wondering what are are using for DDOS protection in your networks.
We
are currently evaluating different options (Arbor, Radware, NSFocus,
RioRey) and I would like to know if someone is using the cloud based
solutions/scrubbing centers like Imperva, Prolexic, etc and what are the
advantages/disadvantages of using a cloud base vs an on-premise solution.
It would be great if you can share your experience on this matter.


On-premise solutions are limited by your own bandwidth.  Attacks have been
publicly reported at 400Gbps, and are rumored to be even larger.  If you
don't have that much network to spare, then packet loss will occur upstream
of your mitigation.  Having a good relationship with your network
provider(s) can help here, of course.

If you go with a cloud-based solution, be wary of their SLA.  I've seen
some claim 100% uptime (not believable) but of course no refund/credits for
downtime.  Another provider only provides 20Gbps protection, then will
null-route the victim.

On Sat, Jan 10, 2015 at 4:19 PM, Charles N Wyble <charles () thefnf org>
wrote:

Also how are folks testing ddos protection? What lab gear,tools,methods
are you using to determine effectiveness of the mitigation.


Live-fire is the cheapest approach (just requires some creative trolling)
but if you want to control the "off" button, cloud VMs can be tailored to
your needs.  There are also legitimate companies that do network stress
testing.

Keep in mind that you need to test against a variety of attacks, against
all components in the critical path.  Attackers aren't particularly
methodical, but will still randomly discover any weaknesses you've
overlooked.

Damian



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