Re: Networking with slow CPUs

[Mike Fedyk]

On Fri, Mar 29, 2002 at 10:47:55AM -0500, Bill Davidsen wrote:
> On Fri, 29 Mar 2002 [e-mail] wrote:
> 
> > Robert Schwebel wrote:
> > > 
> > > Is there a possibility to "harden" a small machine (33 MHz embedded
> > > device) against e.g. flood pings from the outside world?
> > 
> > It *is* bleeding edge, as someone else pointed out, but you should 
> > really investigate NAPI.  It's designed to make Linux resiliant against
> > non-flow-controlled network loads like routing, which sounds like 
> > just the ticket.
> 
>   There is rate limiting in recent iptables, as well. I don't regard
> iptable as bleeding edge, so that may have a higher comfort level.
> 

Yes, but it won't keep the interrupts from all of those packets from
overloading, and DoSing it or possibly crashing the system.