Hi,
On Thu, Mar 28, 2002 at 09:46:46AM -0500, Birsen Ozturk wrote:
> I was looking for information about denying ICMP packets accross the
> backbone. What is the efficient/reccomended way of doing it?
Don't.
> What are the
> drawbacks and maybe workarounds? I feel like if the backbone devices are
> open to ICMP they are vulnerable to DoS attacks. Any idea/reccomendation
> is welcome.
Denying ICMP means that you're going to seriously limit people's abilities
to troubleshoot network problems. If done poorly, you'll also break TCP
path MTU discovery (PMTUd).
gert
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Gert Doering - Munich, Germany gert@greenie.muc.de
fax: +49-89-35655025 gert.doering@physik.tu-muenchen.de
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