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Old 07-19-2005, 12:06 PM
SJ
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Default Re: udp flood protection

Lawrence DčOliveiro wrote:

> It is in the nature of UDP that essentially all the processing is up to
> the receiving application. So the definition of "flood" depends on how
> much your application can cope with. Contrast TCP SYN flood attacks,
> where the "flood" arises because it fills up a connection table managed
> by the kernel.
>
> Checking IP addresses of incoming UDP packets isn't going to be enough,
> since any eavesdropper can determine which addresses you're
> communicating with and spoof packets with those addresses.


Hello Lawrence!

And what other steps do you recommend? Eg. traffic shaping on the router
or running iptables with "--limit" on the udp proxy host, ...

SJ

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