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Network Security Security-Basics
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Re: Removing ping/icmp from a network

Subject: Re: Removing ping/icmp from a network
Date: Tue, 25 Mar 2008 17:11:06 -0300
Hi all,

Please consider the risk of an intruder using ICMP as a Covert Channel
(http://en.wikipedia.org/wiki/Covert_channel).

Should one configure corporate routers to inspect and to rewrite ICMP
packets to avoid / reduce this risk ?

Regards,
Fabio.


On Tue, Mar 25, 2008 at 3:12 PM, Mark Owen <mr.markowen@gmail.com> wrote:

On Tue, Mar 25, 2008 at 12:56 PM, Hopke, Greg <GHopke@libertymgt.com> wrote:
Is ICMP on a LAN insecure?

 I could see lowing it through a firewall or from trusted to non-trusted.

 Greg


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