On Sep 10, 2:07pm, Alexis Rosen wrote:

Subject: Re: Re[2]: SYN floods (was: does history repeat itself?)

Also true. As I said before, I don't know about the Ascends, but I do know that the Xylogics boxes we use have the capability but probably not the capacity. When all ports are connected at 28.8, CPU usage can hover in the high 80% range. Adding filters would probably be a bad idea.

That's why I was talking about filtering at a router just upstream from the dial-access box.

FWIW, even with a thousand very busy modems, I'm pretty sure that even a small cisco is up to the job. They just don't generate all that much traffic.

-- End of excerpt from Alexis Rosen

The Ascends can also do this but I agree that you wouldn't want to filter at the NAS. Logistical reasons are reason enough to filter at an upstream router where the dialup traffic is aggregated. -- Sharif Torpis (storpis@pbi.net) \ | / P A C I F I C Pacific Bell Internet -->*<-- B E L L Network Engineering / | \ I N T E R N E T San Francisco, CA USA