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Re: I don't need no stinking firewall!


From: bill from home <bill () kruchas com>
Date: Fri, 08 Jan 2010 08:22:00 -0500

All,
This thread certainly has been educational, and has changed my perception of what an appropriate outward facing architecture should be. But seldom do I have the luxury of designing this from scratch, and also the networks I administer are "small business's". My question is at what size connection does a state table become vulnerable, are we talking 1mb dsl's with a soho firewall?
Or as I suspect we are talking about a larger scale?
I know there are variables, I am just looking for a "rule of thumb".
I would not want to recommend a change if it is not warranted.
But when fatter and fatter pipes become available at what point would a change be warranted.

Thanks
Bill Kruchas


Dobbins, Roland wrote:
On Jan 8, 2010, at 3:21 PM, Arie Vayner wrote:

Further on, if you want to really protect against a real DDoS you would most likely would have to look at a really 
distributed solution, where the different geographical load balancing solutions come into play.

GSLB or whatever we want to call it is extremely useful from a general availability standpoint; however, the attackers can always scale up and really distribute their already-DDoS even further (they learned about routeservers and DNS tinkering years ago).
Architecture, visibility, and control are key, as are vendor/customer/peer/upstream/opsec community relationships.

-----------------------------------------------------------------------
Roland Dobbins <rdobbins () arbor net> // <http://www.arbornetworks.com>

    Injustice is relatively easy to bear; what stings is justice.

                        -- H.L. Mencken






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